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    <dei:EntityRegistrantName contextRef="Trust" id="ixv-223530">Fidelity Aberdeen Street Trust</dei:EntityRegistrantName>
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    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182220_ClassMember" id="ixv-112">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182220_ClassMember" id="ixv-123">Fidelity Advisor Freedom&#xae; Retirement Fund</oef:FundName>
    <oef:ClassName contextRef="C000182220_ClassMember" id="ixv-126">Fidelity Advisor Freedom&#xae; Retirement Fund Class K6</oef:ClassName>
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    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182220_ClassMember" id="ixv-149">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; Retirement Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182220_ClassMember" id="ixv-151">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182220_ClassMember" id="ixv-156">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182220_ClassMember" id="ixv-158">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182220_ClassMember" id="ixv-161">1-800-835-5092</oef:AddlInfoPhoneNumber>
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    <oef:ExpensesTextBlock contextRef="C000182220_ClassMember" id="ixv-171">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;25&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
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    <oef:FactorsAffectingPerfTextBlock contextRef="C000182220_ClassMember" id="ixv-213">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182220_ClassMember" id="ixv-247">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,269


$10,626


$10,773


$12,267


$12,180


$11,666


$12,377


$13,064


$14,131



Fidelity Freedom Retirement Composite Index&#x2120;


$10,000

$10,246


$10,688


$11,107


$12,218


$12,182


$11,717


$12,437


$13,126


$14,060



Bloomberg U.S. Aggregate Bond Index


$10,000

$9,938


$10,384


$11,311


$11,392


$10,919


$10,396


$10,573


$11,089


$11,571



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182220_LG_ClassMember_10YR" id="ixv-266">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-263328"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-263329"
      unitRef="usd">10269</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263330"
      unitRef="usd">10626</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263331"
      unitRef="usd">10773</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263332"
      unitRef="usd">12267</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263333"
      unitRef="usd">12180</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263334"
      unitRef="usd">11666</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263335"
      unitRef="usd">12377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263336"
      unitRef="usd">13064</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263337"
      unitRef="usd">14131</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182220_LG_1_AdditionalIndexMember_10YR"
      id="ixv-311">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom Retirement Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263338"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263339"
      unitRef="usd">10246</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263340"
      unitRef="usd">10688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263341"
      unitRef="usd">11107</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263342"
      unitRef="usd">12218</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263343"
      unitRef="usd">12182</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263344"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263345"
      unitRef="usd">12437</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263346"
      unitRef="usd">13126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263347"
      unitRef="usd">14060</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182220_LG_2_AdditionalIndexMember_10YR"
      id="ixv-356">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263348"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263349"
      unitRef="usd">9938</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263350"
      unitRef="usd">10384</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263351"
      unitRef="usd">11311</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263352"
      unitRef="usd">11392</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263353"
      unitRef="usd">10919</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263354"
      unitRef="usd">10396</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263355"
      unitRef="usd">10573</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263356"
      unitRef="usd">11089</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182220_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263357"
      unitRef="usd">11571</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182220_ClassMember" id="ixv-450">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

8.17%

2.87%

4.00%


Fidelity Freedom Retirement Composite Index&#x2120;

7.11%


2.85%


3.94%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.67%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263358"
      unitRef="pure">0.0817</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263359"
      unitRef="pure">0.0287</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263360"
      unitRef="pure">0.0400</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263361"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263362"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263363"
      unitRef="pure">0.0394</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263364"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263365"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182220_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263366"
      unitRef="pure">0.0167</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182220_Perf_2017-06-06_ClassMember"
      id="ixv-519">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182220_ClassMember" id="ixv-529">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182220_ClassMember" id="ixv-541">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182220_ClassMember" id="ixv-545">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182220_ClassMember" id="ixv-551">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;210,398,217&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;893,982&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;22&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182220_InstantMember"
      decimals="0"
      id="ixv-263367"
      unitRef="usd">210398217</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182220_InstantMember"
      decimals="INF"
      id="ixv-263368"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182220_ClassMember"
      decimals="0"
      id="ixv-263369"
      unitRef="usd">893982</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182220_ClassMember"
      decimals="INF"
      id="ixv-263370"
      unitRef="pure">0.22</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182220_ClassMember" id="ixv-626">
&#160;
&#160;
&#160;
&#160;
Bond Funds

61.3


Domestic Equity Funds

16.3


International Equity Funds

14.6


Short-Term Funds

7.4


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 61.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 16.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 14.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 7.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182220_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263371"
      unitRef="pure">0.613</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263372"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263373"
      unitRef="pure">0.146</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-263374"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263375"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182220_ClassMember" id="ixv-730">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

33.0


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

20.4


&#160;


Fidelity Series Government Money Market Fund

5.5


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.0


&#160;


Fidelity Series Large Cap Stock Fund

3.0


&#160;


Fidelity Series Overseas Fund

2.3


&#160;


Fidelity Series International Value Fund

2.3


&#160;


Fidelity Series International Growth Fund

2.3


&#160;


Fidelity Advisor Series Equity Growth Fund

2.2


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182220_TH_0_Member"
      decimals="INF"
      id="ixv-263376"
      unitRef="pure">0.330</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_1_Member"
      decimals="INF"
      id="ixv-263377"
      unitRef="pure">0.204</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_2_Member"
      decimals="INF"
      id="ixv-263378"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_3_Member"
      decimals="INF"
      id="ixv-263379"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_4_Member"
      decimals="INF"
      id="ixv-263380"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_5_Member"
      decimals="INF"
      id="ixv-263381"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_6_Member"
      decimals="INF"
      id="ixv-263382"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_7_Member"
      decimals="INF"
      id="ixv-263383"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_8_Member"
      decimals="INF"
      id="ixv-263384"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182220_TH_9_Member"
      decimals="INF"
      id="ixv-263385"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182220_ClassMember" id="ixv-855">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182220_ClassMember" id="ixv-861">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182220_ClassMember" id="ixv-865">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182220_ClassMember" id="ixv-868">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182220_ClassMember" id="ixv-872">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngNameTextBlock contextRef="C000182220_ClassMember" id="ixv-883">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngNameTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182220_ClassMember" id="ixv-890">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-946">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205064_ClassMember" id="ixv-950">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205064_ClassMember" id="ixv-961">Fidelity Advisor Freedom&#xae; Retirement Fund</oef:FundName>
    <oef:ClassName contextRef="C000205064_ClassMember" id="ixv-964">Fidelity Advisor Freedom&#xae; Retirement Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205064_ClassMember" id="ixv-968">FIJUX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205064_ClassMember" id="ixv-987">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; Retirement Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205064_ClassMember" id="ixv-989">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205064_ClassMember" id="ixv-994">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205064_ClassMember" id="ixv-996">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205064_ClassMember" id="ixv-999">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205064_ClassMember" id="ixv-1002">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205064_ClassMember" id="ixv-1009">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;43&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205064_ClassMember"
      decimals="0"
      id="ixv-263386"
      unitRef="usd">43</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205064_ClassMember"
      decimals="INF"
      id="ixv-263387"
      unitRef="pure">0.0041</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205064_ClassMember" id="ixv-1051">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205064_ClassMember" id="ixv-1085">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$10,247


$10,387


$11,811


$11,723


$11,228


$11,883


$12,522


$13,523



Fidelity Freedom Retirement Composite Index&#x2120;


$10,000

$10,264


$10,666


$11,733


$11,699


$11,253


$11,944


$12,605


$13,502



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,460


$11,395


$11,476


$10,999


$10,473


$10,651


$11,171


$11,657



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205064_LG_ClassMember_9YR" id="ixv-1104">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-263388"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263389"
      unitRef="usd">10247</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263390"
      unitRef="usd">10387</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263391"
      unitRef="usd">11811</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263392"
      unitRef="usd">11723</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263393"
      unitRef="usd">11228</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263394"
      unitRef="usd">11883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263395"
      unitRef="usd">12522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263396"
      unitRef="usd">13523</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205064_LG_1_AdditionalIndexMember_9YR"
      id="ixv-1145">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom Retirement Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263397"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263398"
      unitRef="usd">10264</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263399"
      unitRef="usd">10666</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263400"
      unitRef="usd">11733</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263401"
      unitRef="usd">11699</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263402"
      unitRef="usd">11253</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263403"
      unitRef="usd">11944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263404"
      unitRef="usd">12605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263405"
      unitRef="usd">13502</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205064_LG_2_AdditionalIndexMember_9YR"
      id="ixv-1186">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263406"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263407"
      unitRef="usd">10460</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263408"
      unitRef="usd">11395</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263409"
      unitRef="usd">11476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263410"
      unitRef="usd">10999</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263411"
      unitRef="usd">10473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263412"
      unitRef="usd">10651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263413"
      unitRef="usd">11171</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205064_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263414"
      unitRef="usd">11657</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205064_ClassMember" id="ixv-1273">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

8.00%

2.74%

4.11%


Fidelity Freedom Retirement Composite Index&#x2120;

7.11%


2.85%


4.09%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


2.07%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263415"
      unitRef="pure">0.0800</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263416"
      unitRef="pure">0.0274</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263417"
      unitRef="pure">0.0411</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263418"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263419"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263420"
      unitRef="pure">0.0409</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263421"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263422"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205064_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263423"
      unitRef="pure">0.0207</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205064_Perf_2018-10-02_ClassMember"
      id="ixv-1342">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205064_ClassMember" id="ixv-1352">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205064_ClassMember" id="ixv-1364">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205064_ClassMember" id="ixv-1368">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205064_ClassMember" id="ixv-1374">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;210,398,217&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;893,982&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;22&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205064_InstantMember"
      decimals="0"
      id="ixv-263424"
      unitRef="usd">210398217</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205064_InstantMember"
      decimals="INF"
      id="ixv-263425"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205064_ClassMember"
      decimals="0"
      id="ixv-263426"
      unitRef="usd">893982</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205064_ClassMember"
      decimals="INF"
      id="ixv-263427"
      unitRef="pure">0.22</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205064_ClassMember" id="ixv-1449">
&#160;
&#160;
&#160;
&#160;
Bond Funds

61.3


Domestic Equity Funds

16.3


International Equity Funds

14.6


Short-Term Funds

7.4


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 61.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 16.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 14.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 7.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205064_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263428"
      unitRef="pure">0.613</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263429"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263430"
      unitRef="pure">0.146</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-263431"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263432"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205064_ClassMember" id="ixv-1553">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

33.0


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

20.4


&#160;


Fidelity Series Government Money Market Fund

5.5


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.0


&#160;


Fidelity Series Large Cap Stock Fund

3.0


&#160;


Fidelity Series Overseas Fund

2.3


&#160;


Fidelity Series International Value Fund

2.3


&#160;


Fidelity Series International Growth Fund

2.3


&#160;


Fidelity Advisor Series Equity Growth Fund

2.2


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205064_TH_0_Member"
      decimals="INF"
      id="ixv-263433"
      unitRef="pure">0.330</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_1_Member"
      decimals="INF"
      id="ixv-263434"
      unitRef="pure">0.204</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_2_Member"
      decimals="INF"
      id="ixv-263435"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_3_Member"
      decimals="INF"
      id="ixv-263436"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_4_Member"
      decimals="INF"
      id="ixv-263437"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_5_Member"
      decimals="INF"
      id="ixv-263438"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_6_Member"
      decimals="INF"
      id="ixv-263439"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_7_Member"
      decimals="INF"
      id="ixv-263440"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_8_Member"
      decimals="INF"
      id="ixv-263441"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205064_TH_9_Member"
      decimals="INF"
      id="ixv-263442"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205064_ClassMember" id="ixv-1678">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205064_ClassMember" id="ixv-1684">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205064_ClassMember" id="ixv-1688">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205064_ClassMember" id="ixv-1691">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205064_ClassMember" id="ixv-1695">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngNameTextBlock contextRef="C000205064_ClassMember" id="ixv-1706">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngNameTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205064_ClassMember" id="ixv-1713">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-1769">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013237_ClassMember" id="ixv-1773">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013237_ClassMember" id="ixv-1784">Fidelity Advisor Freedom&#xae; Retirement Fund</oef:FundName>
    <oef:ClassName contextRef="C000013237_ClassMember" id="ixv-1787">Fidelity Advisor Freedom&#xae; Retirement Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013237_ClassMember" id="ixv-1791">FTAFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013237_ClassMember" id="ixv-1810">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; Retirement Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013237_ClassMember" id="ixv-1812">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013237_ClassMember" id="ixv-1817">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013237_ClassMember" id="ixv-1819">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013237_ClassMember" id="ixv-1822">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013237_ClassMember" id="ixv-1825">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013237_ClassMember" id="ixv-1832">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;100&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.96&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013237_ClassMember"
      decimals="0"
      id="ixv-263443"
      unitRef="usd">100</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013237_ClassMember"
      decimals="INF"
      id="ixv-263444"
      unitRef="pure">0.0096</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013237_ClassMember" id="ixv-1874">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013237_ClassMember" id="ixv-1908">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$10,186


$10,616


$10,911


$11,009


$12,448


$12,284


$11,704


$12,321


$12,914


$13,876



Fidelity Freedom Retirement Composite Index&#x2120;


$10,000

$10,415


$10,867


$11,335


$11,779


$12,958


$12,920


$12,427


$13,191


$13,921


$14,911



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013237_LG_ClassMember_11YR" id="ixv-1929">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-263445"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-263446"
      unitRef="usd">10186</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-263447"
      unitRef="usd">10616</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263448"
      unitRef="usd">10911</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263449"
      unitRef="usd">11009</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263450"
      unitRef="usd">12448</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263451"
      unitRef="usd">12284</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263452"
      unitRef="usd">11704</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263453"
      unitRef="usd">12321</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263454"
      unitRef="usd">12914</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263455"
      unitRef="usd">13876</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013237_LG_1_AdditionalIndexMember_11YR"
      id="ixv-1978">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom Retirement Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263456"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263457"
      unitRef="usd">10415</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263458"
      unitRef="usd">10867</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263459"
      unitRef="usd">11335</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263460"
      unitRef="usd">11779</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263461"
      unitRef="usd">12958</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263462"
      unitRef="usd">12920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263463"
      unitRef="usd">12427</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263464"
      unitRef="usd">13191</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263465"
      unitRef="usd">13921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263466"
      unitRef="usd">14911</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013237_LG_2_AdditionalIndexMember_11YR"
      id="ixv-2027">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263467"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263468"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263469"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263470"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263471"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263472"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263473"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263474"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263475"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263476"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013237_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263477"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013237_ClassMember" id="ixv-2128">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

3.68%

1.47%


3.33%


Class M (without 3.50% sales charge)

7.44%

2.20%

3.70%


Fidelity Freedom Retirement Composite Index&#x2120;

7.11%


2.85%


4.08%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_ClassMember_1YR"
      decimals="INF"
      id="ixv-263478"
      unitRef="pure">0.0368</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_ClassMember_5YR"
      decimals="INF"
      id="ixv-263479"
      unitRef="pure">0.0147</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_ClassMember_10YR"
      decimals="INF"
      id="ixv-263480"
      unitRef="pure">0.0333</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263481"
      unitRef="pure">0.0744</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263482"
      unitRef="pure">0.0220</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-263483"
      unitRef="pure">0.0370</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263484"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263485"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-263486"
      unitRef="pure">0.0408</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263487"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263488"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013237_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-263489"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013237_ClassMember" id="ixv-2213">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013237_ClassMember" id="ixv-2225">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013237_ClassMember" id="ixv-2229">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013237_ClassMember" id="ixv-2235">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;210,398,217&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;893,982&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;22&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013237_InstantMember"
      decimals="0"
      id="ixv-263490"
      unitRef="usd">210398217</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013237_InstantMember"
      decimals="INF"
      id="ixv-263491"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013237_ClassMember"
      decimals="0"
      id="ixv-263492"
      unitRef="usd">893982</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013237_ClassMember"
      decimals="INF"
      id="ixv-263493"
      unitRef="pure">0.22</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013237_ClassMember" id="ixv-2310">
&#160;
&#160;
&#160;
&#160;
Bond Funds

61.3


Domestic Equity Funds

16.3


International Equity Funds

14.6


Short-Term Funds

7.4


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 61.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 16.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 14.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 7.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013237_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263494"
      unitRef="pure">0.613</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263495"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263496"
      unitRef="pure">0.146</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-263497"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263498"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013237_ClassMember" id="ixv-2414">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

33.0


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

20.4


&#160;


Fidelity Series Government Money Market Fund

5.5


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.0


&#160;


Fidelity Series Large Cap Stock Fund

3.0


&#160;


Fidelity Series Overseas Fund

2.3


&#160;


Fidelity Series International Value Fund

2.3


&#160;


Fidelity Series International Growth Fund

2.3


&#160;


Fidelity Advisor Series Equity Growth Fund

2.2


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013237_TH_0_Member"
      decimals="INF"
      id="ixv-263499"
      unitRef="pure">0.330</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_1_Member"
      decimals="INF"
      id="ixv-263500"
      unitRef="pure">0.204</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_2_Member"
      decimals="INF"
      id="ixv-263501"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_3_Member"
      decimals="INF"
      id="ixv-263502"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_4_Member"
      decimals="INF"
      id="ixv-263503"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_5_Member"
      decimals="INF"
      id="ixv-263504"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_6_Member"
      decimals="INF"
      id="ixv-263505"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_7_Member"
      decimals="INF"
      id="ixv-263506"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_8_Member"
      decimals="INF"
      id="ixv-263507"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013237_TH_9_Member"
      decimals="INF"
      id="ixv-263508"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013237_ClassMember" id="ixv-2539">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013237_ClassMember" id="ixv-2545">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013237_ClassMember" id="ixv-2549">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013237_ClassMember" id="ixv-2552">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013237_ClassMember" id="ixv-2556">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngNameTextBlock contextRef="C000013237_ClassMember" id="ixv-2567">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngNameTextBlock>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013237_ClassMember" id="ixv-2574">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013237_ClassMember" id="ixv-2582">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-2640">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013238_ClassMember" id="ixv-2644">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013238_ClassMember" id="ixv-2655">Fidelity Advisor Freedom&#xae; Retirement Fund</oef:FundName>
    <oef:ClassName contextRef="C000013238_ClassMember" id="ixv-2658">Fidelity Advisor Freedom&#xae; Retirement Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013238_ClassMember" id="ixv-2662">FIAFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013238_ClassMember" id="ixv-2681">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; Retirement Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013238_ClassMember" id="ixv-2683">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013238_ClassMember" id="ixv-2688">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013238_ClassMember" id="ixv-2690">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013238_ClassMember" id="ixv-2693">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013238_ClassMember" id="ixv-2696">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013238_ClassMember" id="ixv-2703">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;48&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.46&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013238_ClassMember"
      decimals="0"
      id="ixv-263509"
      unitRef="usd">48</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013238_ClassMember"
      decimals="INF"
      id="ixv-263510"
      unitRef="pure">0.0046</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013238_ClassMember" id="ixv-2745">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013238_ClassMember" id="ixv-2779">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$10,607


$11,106


$11,473


$11,622


$13,217


$13,111


$12,557


$13,279


$13,982


$15,099



Fidelity Freedom Retirement Composite Index&#x2120;


$10,000

$10,415


$10,867


$11,335


$11,779


$12,958


$12,920


$12,427


$13,191


$13,921


$14,911



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013238_LG_ClassMember_11YR" id="ixv-2798">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-263511"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-263512"
      unitRef="usd">10607</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-263513"
      unitRef="usd">11106</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263514"
      unitRef="usd">11473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263515"
      unitRef="usd">11622</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263516"
      unitRef="usd">13217</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263517"
      unitRef="usd">13111</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263518"
      unitRef="usd">12557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263519"
      unitRef="usd">13279</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263520"
      unitRef="usd">13982</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263521"
      unitRef="usd">15099</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013238_LG_1_AdditionalIndexMember_11YR"
      id="ixv-2847">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom Retirement Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263522"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263523"
      unitRef="usd">10415</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263524"
      unitRef="usd">10867</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263525"
      unitRef="usd">11335</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263526"
      unitRef="usd">11779</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263527"
      unitRef="usd">12958</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263528"
      unitRef="usd">12920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263529"
      unitRef="usd">12427</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263530"
      unitRef="usd">13191</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263531"
      unitRef="usd">13921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263532"
      unitRef="usd">14911</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013238_LG_2_AdditionalIndexMember_11YR"
      id="ixv-2896">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263533"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263534"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263535"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263536"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263537"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263538"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263539"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263540"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263541"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263542"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013238_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263543"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013238_ClassMember" id="ixv-2997">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

7.99%

2.70%

4.21%


Fidelity Freedom Retirement Composite Index&#x2120;

7.11%


2.85%


4.08%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263544"
      unitRef="pure">0.0799</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263545"
      unitRef="pure">0.0270</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-263546"
      unitRef="pure">0.0421</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263547"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263548"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-263549"
      unitRef="pure">0.0408</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263550"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263551"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013238_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-263552"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013238_ClassMember" id="ixv-3067">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013238_ClassMember" id="ixv-3079">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013238_ClassMember" id="ixv-3083">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013238_ClassMember" id="ixv-3089">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;210,398,217&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;893,982&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;22&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013238_InstantMember"
      decimals="0"
      id="ixv-263553"
      unitRef="usd">210398217</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013238_InstantMember"
      decimals="INF"
      id="ixv-263554"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013238_ClassMember"
      decimals="0"
      id="ixv-263555"
      unitRef="usd">893982</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013238_ClassMember"
      decimals="INF"
      id="ixv-263556"
      unitRef="pure">0.22</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013238_ClassMember" id="ixv-3164">
&#160;
&#160;
&#160;
&#160;
Bond Funds

61.3


Domestic Equity Funds

16.3


International Equity Funds

14.6


Short-Term Funds

7.4


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 61.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 16.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 14.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 7.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013238_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263557"
      unitRef="pure">0.613</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263558"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263559"
      unitRef="pure">0.146</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-263560"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263561"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013238_ClassMember" id="ixv-3268">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

33.0


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

20.4


&#160;


Fidelity Series Government Money Market Fund

5.5


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.0


&#160;


Fidelity Series Large Cap Stock Fund

3.0


&#160;


Fidelity Series Overseas Fund

2.3


&#160;


Fidelity Series International Value Fund

2.3


&#160;


Fidelity Series International Growth Fund

2.3


&#160;


Fidelity Advisor Series Equity Growth Fund

2.2


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013238_TH_0_Member"
      decimals="INF"
      id="ixv-263562"
      unitRef="pure">0.330</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_1_Member"
      decimals="INF"
      id="ixv-263563"
      unitRef="pure">0.204</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_2_Member"
      decimals="INF"
      id="ixv-263564"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_3_Member"
      decimals="INF"
      id="ixv-263565"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_4_Member"
      decimals="INF"
      id="ixv-263566"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_5_Member"
      decimals="INF"
      id="ixv-263567"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_6_Member"
      decimals="INF"
      id="ixv-263568"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_7_Member"
      decimals="INF"
      id="ixv-263569"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_8_Member"
      decimals="INF"
      id="ixv-263570"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013238_TH_9_Member"
      decimals="INF"
      id="ixv-263571"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013238_ClassMember" id="ixv-3393">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013238_ClassMember" id="ixv-3399">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013238_ClassMember" id="ixv-3403">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013238_ClassMember" id="ixv-3406">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013238_ClassMember" id="ixv-3410">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngNameTextBlock contextRef="C000013238_ClassMember" id="ixv-3421">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngNameTextBlock>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013238_ClassMember" id="ixv-3428">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013238_ClassMember" id="ixv-3436">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-3494">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013236_ClassMember" id="ixv-3498">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013236_ClassMember" id="ixv-3509">Fidelity Advisor Freedom&#xae; Retirement Fund</oef:FundName>
    <oef:ClassName contextRef="C000013236_ClassMember" id="ixv-3512">Fidelity Advisor Freedom&#xae; Retirement Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013236_ClassMember" id="ixv-3516">FCAFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013236_ClassMember" id="ixv-3535">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; Retirement Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013236_ClassMember" id="ixv-3537">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013236_ClassMember" id="ixv-3542">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013236_ClassMember" id="ixv-3544">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013236_ClassMember" id="ixv-3547">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013236_ClassMember" id="ixv-3550">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013236_ClassMember" id="ixv-3557">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;151&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.46&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013236_ClassMember"
      decimals="0"
      id="ixv-263572"
      unitRef="usd">151</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013236_ClassMember"
      decimals="INF"
      id="ixv-263573"
      unitRef="pure">0.0146</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013236_ClassMember" id="ixv-3599">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013236_ClassMember" id="ixv-3633">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$10,499


$10,886


$11,142


$11,175


$12,571


$12,351


$11,700


$12,259


$12,866


$13,866



Fidelity Freedom Retirement Composite Index&#x2120;


$10,000

$10,415


$10,867


$11,335


$11,779


$12,958


$12,920


$12,427


$13,191


$13,921


$14,911



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013236_LG_ClassMember_11YR" id="ixv-3652">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-263574"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-263575"
      unitRef="usd">10499</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-263576"
      unitRef="usd">10886</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263577"
      unitRef="usd">11142</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263578"
      unitRef="usd">11175</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263579"
      unitRef="usd">12571</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263580"
      unitRef="usd">12351</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263581"
      unitRef="usd">11700</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263582"
      unitRef="usd">12259</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263583"
      unitRef="usd">12866</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263584"
      unitRef="usd">13866</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013236_LG_1_AdditionalIndexMember_11YR"
      id="ixv-3701">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom Retirement Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263585"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263586"
      unitRef="usd">10415</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263587"
      unitRef="usd">10867</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263588"
      unitRef="usd">11335</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263589"
      unitRef="usd">11779</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263590"
      unitRef="usd">12958</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263591"
      unitRef="usd">12920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263592"
      unitRef="usd">12427</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263593"
      unitRef="usd">13191</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263594"
      unitRef="usd">13921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263595"
      unitRef="usd">14911</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013236_LG_2_AdditionalIndexMember_11YR"
      id="ixv-3750">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263596"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263597"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263598"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263599"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263600"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263601"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263602"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263603"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263604"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263605"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013236_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263606"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013236_ClassMember" id="ixv-3851">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

5.85%

1.68%


3.32%


Class C

6.85%

1.68%

3.32%


Fidelity Freedom Retirement Composite Index&#x2120;

7.11%


2.85%


4.08%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_ClassMember_1YR"
      decimals="INF"
      id="ixv-263607"
      unitRef="pure">0.0585</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_ClassMember_5YR"
      decimals="INF"
      id="ixv-263608"
      unitRef="pure">0.0168</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_ClassMember_10YR"
      decimals="INF"
      id="ixv-263609"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263610"
      unitRef="pure">0.0685</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263611"
      unitRef="pure">0.0168</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-263612"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263613"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263614"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-263615"
      unitRef="pure">0.0408</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263616"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263617"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013236_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-263618"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013236_ClassMember" id="ixv-3937">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013236_ClassMember" id="ixv-3949">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013236_ClassMember" id="ixv-3953">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013236_ClassMember" id="ixv-3959">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;210,398,217&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;893,982&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;22&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013236_InstantMember"
      decimals="0"
      id="ixv-263619"
      unitRef="usd">210398217</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013236_InstantMember"
      decimals="INF"
      id="ixv-263620"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013236_ClassMember"
      decimals="0"
      id="ixv-263621"
      unitRef="usd">893982</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013236_ClassMember"
      decimals="INF"
      id="ixv-263622"
      unitRef="pure">0.22</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013236_ClassMember" id="ixv-4034">
&#160;
&#160;
&#160;
&#160;
Bond Funds

61.3


Domestic Equity Funds

16.3


International Equity Funds

14.6


Short-Term Funds

7.4


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 61.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 16.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 14.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 7.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013236_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263623"
      unitRef="pure">0.613</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263624"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263625"
      unitRef="pure">0.146</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-263626"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263627"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013236_ClassMember" id="ixv-4138">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

33.0


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

20.4


&#160;


Fidelity Series Government Money Market Fund

5.5


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.0


&#160;


Fidelity Series Large Cap Stock Fund

3.0


&#160;


Fidelity Series Overseas Fund

2.3


&#160;


Fidelity Series International Value Fund

2.3


&#160;


Fidelity Series International Growth Fund

2.3


&#160;


Fidelity Advisor Series Equity Growth Fund

2.2


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013236_TH_0_Member"
      decimals="INF"
      id="ixv-263628"
      unitRef="pure">0.330</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_1_Member"
      decimals="INF"
      id="ixv-263629"
      unitRef="pure">0.204</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_2_Member"
      decimals="INF"
      id="ixv-263630"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_3_Member"
      decimals="INF"
      id="ixv-263631"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_4_Member"
      decimals="INF"
      id="ixv-263632"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_5_Member"
      decimals="INF"
      id="ixv-263633"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_6_Member"
      decimals="INF"
      id="ixv-263634"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_7_Member"
      decimals="INF"
      id="ixv-263635"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_8_Member"
      decimals="INF"
      id="ixv-263636"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013236_TH_9_Member"
      decimals="INF"
      id="ixv-263637"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013236_ClassMember" id="ixv-4263">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013236_ClassMember" id="ixv-4269">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013236_ClassMember" id="ixv-4273">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013236_ClassMember" id="ixv-4276">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013236_ClassMember" id="ixv-4280">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngNameTextBlock contextRef="C000013236_ClassMember" id="ixv-4291">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngNameTextBlock>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013236_ClassMember" id="ixv-4298">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013236_ClassMember" id="ixv-4306">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-4364">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013234_ClassMember" id="ixv-4368">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013234_ClassMember" id="ixv-4379">Fidelity Advisor Freedom&#xae; Retirement Fund</oef:FundName>
    <oef:ClassName contextRef="C000013234_ClassMember" id="ixv-4382">Fidelity Advisor Freedom&#xae; Retirement Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013234_ClassMember" id="ixv-4386">FAFAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013234_ClassMember" id="ixv-4405">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; Retirement Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013234_ClassMember" id="ixv-4407">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013234_ClassMember" id="ixv-4412">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013234_ClassMember" id="ixv-4414">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013234_ClassMember" id="ixv-4417">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013234_ClassMember" id="ixv-4420">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013234_ClassMember" id="ixv-4427">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;74&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013234_ClassMember"
      decimals="0"
      id="ixv-263638"
      unitRef="usd">74</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013234_ClassMember"
      decimals="INF"
      id="ixv-263639"
      unitRef="pure">0.0071</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013234_ClassMember" id="ixv-4469">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013234_ClassMember" id="ixv-4503">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$9,966


$10,411


$10,737


$10,849


$12,305


$12,177


$11,619


$12,273


$12,881


$13,882



Fidelity Freedom Retirement Composite Index&#x2120;


$10,000

$10,415


$10,867


$11,335


$11,779


$12,958


$12,920


$12,427


$13,191


$13,921


$14,911



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013234_LG_ClassMember_11YR" id="ixv-4524">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-263640"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-263641"
      unitRef="usd">9966</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-263642"
      unitRef="usd">10411</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263643"
      unitRef="usd">10737</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263644"
      unitRef="usd">10849</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263645"
      unitRef="usd">12305</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263646"
      unitRef="usd">12177</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263647"
      unitRef="usd">11619</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263648"
      unitRef="usd">12273</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263649"
      unitRef="usd">12881</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263650"
      unitRef="usd">13882</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013234_LG_1_AdditionalIndexMember_11YR"
      id="ixv-4573">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom Retirement Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263651"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263652"
      unitRef="usd">10415</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263653"
      unitRef="usd">10867</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263654"
      unitRef="usd">11335</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263655"
      unitRef="usd">11779</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263656"
      unitRef="usd">12958</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263657"
      unitRef="usd">12920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263658"
      unitRef="usd">12427</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263659"
      unitRef="usd">13191</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263660"
      unitRef="usd">13921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263661"
      unitRef="usd">14911</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013234_LG_2_AdditionalIndexMember_11YR"
      id="ixv-4622">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-263662"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-263663"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-263664"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263665"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263666"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263667"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263668"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263669"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263670"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263671"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013234_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263672"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013234_ClassMember" id="ixv-4723">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

1.57%

1.24%


3.33%


Class A (without 5.75% sales charge)

7.77%

2.44%

3.95%


Fidelity Freedom Retirement Composite Index&#x2120;

7.11%


2.85%


4.08%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_ClassMember_1YR"
      decimals="INF"
      id="ixv-263673"
      unitRef="pure">0.0157</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_ClassMember_5YR"
      decimals="INF"
      id="ixv-263674"
      unitRef="pure">0.0124</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_ClassMember_10YR"
      decimals="INF"
      id="ixv-263675"
      unitRef="pure">0.0333</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263676"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263677"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-263678"
      unitRef="pure">0.0395</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263679"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263680"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-263681"
      unitRef="pure">0.0408</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263682"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263683"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013234_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-263684"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013234_ClassMember" id="ixv-4808">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013234_ClassMember" id="ixv-4820">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013234_ClassMember" id="ixv-4824">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013234_ClassMember" id="ixv-4830">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;210,398,217&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;893,982&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;22&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013234_InstantMember"
      decimals="0"
      id="ixv-263685"
      unitRef="usd">210398217</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013234_InstantMember"
      decimals="INF"
      id="ixv-263686"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013234_ClassMember"
      decimals="0"
      id="ixv-263687"
      unitRef="usd">893982</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013234_ClassMember"
      decimals="INF"
      id="ixv-263688"
      unitRef="pure">0.22</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013234_ClassMember" id="ixv-4905">
&#160;
&#160;
&#160;
&#160;
Bond Funds

61.3


Domestic Equity Funds

16.3


International Equity Funds

14.6


Short-Term Funds

7.4


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 61.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 16.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 14.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 7.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013234_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263689"
      unitRef="pure">0.613</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263690"
      unitRef="pure">0.163</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263691"
      unitRef="pure">0.146</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-263692"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263693"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013234_ClassMember" id="ixv-5009">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

33.0


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

20.4


&#160;


Fidelity Series Government Money Market Fund

5.5


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.0


&#160;


Fidelity Series Large Cap Stock Fund

3.0


&#160;


Fidelity Series Overseas Fund

2.3


&#160;


Fidelity Series International Value Fund

2.3


&#160;


Fidelity Series International Growth Fund

2.3


&#160;


Fidelity Advisor Series Equity Growth Fund

2.2


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013234_TH_0_Member"
      decimals="INF"
      id="ixv-263694"
      unitRef="pure">0.330</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_1_Member"
      decimals="INF"
      id="ixv-263695"
      unitRef="pure">0.204</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_2_Member"
      decimals="INF"
      id="ixv-263696"
      unitRef="pure">0.055</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_3_Member"
      decimals="INF"
      id="ixv-263697"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_4_Member"
      decimals="INF"
      id="ixv-263698"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_5_Member"
      decimals="INF"
      id="ixv-263699"
      unitRef="pure">0.030</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_6_Member"
      decimals="INF"
      id="ixv-263700"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_7_Member"
      decimals="INF"
      id="ixv-263701"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_8_Member"
      decimals="INF"
      id="ixv-263702"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013234_TH_9_Member"
      decimals="INF"
      id="ixv-263703"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013234_ClassMember" id="ixv-5134">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013234_ClassMember" id="ixv-5140">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013234_ClassMember" id="ixv-5144">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013234_ClassMember" id="ixv-5147">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013234_ClassMember" id="ixv-5151">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngNameTextBlock contextRef="C000013234_ClassMember" id="ixv-5162">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's name changed from Fidelity Advisor Freedom&#xae; Income Fund to Fidelity Advisor Freedom&#xae; Retirement Fund during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngNameTextBlock>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013234_ClassMember" id="ixv-5169">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013234_ClassMember" id="ixv-5177">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-5235">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000212313_ClassMember" id="ixv-5239">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000212313_ClassMember" id="ixv-5250">Fidelity Advisor Freedom&#xae; 2065 Fund</oef:FundName>
    <oef:ClassName contextRef="C000212313_ClassMember" id="ixv-5253">Fidelity Advisor Freedom&#xae; 2065 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000212313_ClassMember" id="ixv-5257">FDFRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000212313_ClassMember" id="ixv-5276">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2065 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000212313_ClassMember" id="ixv-5278">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000212313_ClassMember" id="ixv-5283">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000212313_ClassMember" id="ixv-5285">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000212313_ClassMember" id="ixv-5288">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000212313_ClassMember" id="ixv-5291">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000212313_ClassMember" id="ixv-5298">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000212313_ClassMember"
      decimals="0"
      id="ixv-263704"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000212313_ClassMember"
      decimals="INF"
      id="ixv-263705"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000212313_ClassMember" id="ixv-5340">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000212313_ClassMember" id="ixv-5374">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2019 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$8,642


$13,480


$13,921


$12,975


$15,773


$16,712


$20,295



Fidelity Freedom 2065 Composite Index&#x2120;


$10,000

$8,783


$13,174


$13,882


$12,862


$15,453


$16,465


$19,597



S&amp;P 500&#xae; Index


$10,000

$8,918


$13,944


$16,126


$14,879


$19,326


$20,920


$24,645



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000212313_LG_ClassMember_8YR" id="ixv-5393">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263706"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263707"
      unitRef="usd">8642</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263708"
      unitRef="usd">13480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263709"
      unitRef="usd">13921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263710"
      unitRef="usd">12975</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263711"
      unitRef="usd">15773</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263712"
      unitRef="usd">16712</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263713"
      unitRef="usd">20295</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212313_LG_1_AdditionalIndexMember_8YR"
      id="ixv-5430">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2065 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263714"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263715"
      unitRef="usd">8783</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263716"
      unitRef="usd">13174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263717"
      unitRef="usd">13882</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263718"
      unitRef="usd">12862</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263719"
      unitRef="usd">15453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263720"
      unitRef="usd">16465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263721"
      unitRef="usd">19597</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212313_LG_2_AdditionalIndexMember_8YR"
      id="ixv-5467">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263722"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263723"
      unitRef="usd">8918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263724"
      unitRef="usd">13944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263725"
      unitRef="usd">16126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263726"
      unitRef="usd">14879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263727"
      unitRef="usd">19326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263728"
      unitRef="usd">20920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212313_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263729"
      unitRef="usd">24645</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000212313_ClassMember" id="ixv-5547">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

21.44%

8.53%

11.06%


Fidelity Freedom 2065 Composite Index&#x2120;

19.02%


8.27%


10.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.30%




A&#160; &#160;From June 28, 2019

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263730"
      unitRef="pure">0.2144</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263731"
      unitRef="pure">0.0853</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263732"
      unitRef="pure">0.1106</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263733"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263734"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263735"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263736"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263737"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212313_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263738"
      unitRef="pure">0.1430</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000212313_Perf_2019-06-28_ClassMember"
      id="ixv-5616">2019-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000212313_ClassMember" id="ixv-5626">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000212313_ClassMember" id="ixv-5638">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000212313_ClassMember" id="ixv-5642">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000212313_ClassMember" id="ixv-5648">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;306,013,151&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,593,911&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000212313_InstantMember"
      decimals="0"
      id="ixv-263739"
      unitRef="usd">306013151</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000212313_InstantMember"
      decimals="INF"
      id="ixv-263740"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000212313_ClassMember"
      decimals="0"
      id="ixv-263741"
      unitRef="usd">1593911</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000212313_ClassMember"
      decimals="INF"
      id="ixv-263742"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000212313_ClassMember" id="ixv-5723">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212313_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263743"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263744"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263745"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263746"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000212313_ClassMember" id="ixv-5814">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212313_TH_0_Member"
      decimals="INF"
      id="ixv-263747"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_1_Member"
      decimals="INF"
      id="ixv-263748"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_2_Member"
      decimals="INF"
      id="ixv-263749"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_3_Member"
      decimals="INF"
      id="ixv-263750"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_4_Member"
      decimals="INF"
      id="ixv-263751"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_5_Member"
      decimals="INF"
      id="ixv-263752"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_6_Member"
      decimals="INF"
      id="ixv-263753"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_7_Member"
      decimals="INF"
      id="ixv-263754"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_8_Member"
      decimals="INF"
      id="ixv-263755"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212313_TH_9_Member"
      decimals="INF"
      id="ixv-263756"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000212313_ClassMember" id="ixv-5939">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000212313_ClassMember" id="ixv-5945">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000212313_ClassMember" id="ixv-5949">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000212313_ClassMember" id="ixv-5952">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000212313_ClassMember" id="ixv-5956">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000212313_ClassMember" id="ixv-5967">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000212313_ClassMember" id="ixv-5974">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-6030">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000212316_ClassMember" id="ixv-6034">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000212316_ClassMember" id="ixv-6045">Fidelity Advisor Freedom&#xae; 2065 Fund</oef:FundName>
    <oef:ClassName contextRef="C000212316_ClassMember" id="ixv-6048">Fidelity Advisor Freedom&#xae; 2065 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000212316_ClassMember" id="ixv-6052">FDFQX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000212316_ClassMember" id="ixv-6071">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2065 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000212316_ClassMember" id="ixv-6073">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000212316_ClassMember" id="ixv-6078">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000212316_ClassMember" id="ixv-6080">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000212316_ClassMember" id="ixv-6083">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000212316_ClassMember" id="ixv-6086">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000212316_ClassMember" id="ixv-6093">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.64&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000212316_ClassMember"
      decimals="0"
      id="ixv-263757"
      unitRef="usd">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000212316_ClassMember"
      decimals="INF"
      id="ixv-263758"
      unitRef="pure">0.0064</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000212316_ClassMember" id="ixv-6135">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000212316_ClassMember" id="ixv-6169">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2019 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$8,632


$13,449


$13,856


$12,901


$15,661


$16,557


$20,057



Fidelity Freedom 2065 Composite Index&#x2120;


$10,000

$8,783


$13,174


$13,882


$12,862


$15,453


$16,465


$19,597



S&amp;P 500&#xae; Index


$10,000

$8,918


$13,944


$16,126


$14,879


$19,326


$20,920


$24,645



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000212316_LG_ClassMember_8YR" id="ixv-6188">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263759"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263760"
      unitRef="usd">8632</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263761"
      unitRef="usd">13449</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263762"
      unitRef="usd">13856</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263763"
      unitRef="usd">12901</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263764"
      unitRef="usd">15661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263765"
      unitRef="usd">16557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263766"
      unitRef="usd">20057</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212316_LG_1_AdditionalIndexMember_8YR"
      id="ixv-6225">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2065 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263767"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263768"
      unitRef="usd">8783</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263769"
      unitRef="usd">13174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263770"
      unitRef="usd">13882</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263771"
      unitRef="usd">12862</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263772"
      unitRef="usd">15453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263773"
      unitRef="usd">16465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263774"
      unitRef="usd">19597</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212316_LG_2_AdditionalIndexMember_8YR"
      id="ixv-6262">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263775"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263776"
      unitRef="usd">8918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263777"
      unitRef="usd">13944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263778"
      unitRef="usd">16126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263779"
      unitRef="usd">14879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263780"
      unitRef="usd">19326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263781"
      unitRef="usd">20920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212316_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263782"
      unitRef="usd">24645</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000212316_ClassMember" id="ixv-6342">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

21.14%

8.32%

10.86%


Fidelity Freedom 2065 Composite Index&#x2120;

19.02%


8.27%


10.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.30%




A&#160; &#160;From June 28, 2019

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263783"
      unitRef="pure">0.2114</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263784"
      unitRef="pure">0.0832</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263785"
      unitRef="pure">0.1086</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263786"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263787"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263788"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263789"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263790"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212316_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263791"
      unitRef="pure">0.1430</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000212316_Perf_2019-06-28_ClassMember"
      id="ixv-6411">2019-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000212316_ClassMember" id="ixv-6421">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000212316_ClassMember" id="ixv-6433">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000212316_ClassMember" id="ixv-6437">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000212316_ClassMember" id="ixv-6443">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;306,013,151&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,593,911&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000212316_InstantMember"
      decimals="0"
      id="ixv-263792"
      unitRef="usd">306013151</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000212316_InstantMember"
      decimals="INF"
      id="ixv-263793"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000212316_ClassMember"
      decimals="0"
      id="ixv-263794"
      unitRef="usd">1593911</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000212316_ClassMember"
      decimals="INF"
      id="ixv-263795"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000212316_ClassMember" id="ixv-6518">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212316_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263796"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263797"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263798"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263799"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000212316_ClassMember" id="ixv-6609">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212316_TH_0_Member"
      decimals="INF"
      id="ixv-263800"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_1_Member"
      decimals="INF"
      id="ixv-263801"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_2_Member"
      decimals="INF"
      id="ixv-263802"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_3_Member"
      decimals="INF"
      id="ixv-263803"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_4_Member"
      decimals="INF"
      id="ixv-263804"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_5_Member"
      decimals="INF"
      id="ixv-263805"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_6_Member"
      decimals="INF"
      id="ixv-263806"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_7_Member"
      decimals="INF"
      id="ixv-263807"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_8_Member"
      decimals="INF"
      id="ixv-263808"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212316_TH_9_Member"
      decimals="INF"
      id="ixv-263809"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000212316_ClassMember" id="ixv-6734">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000212316_ClassMember" id="ixv-6740">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000212316_ClassMember" id="ixv-6744">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000212316_ClassMember" id="ixv-6747">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000212316_ClassMember" id="ixv-6751">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000212316_ClassMember" id="ixv-6762">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000212316_ClassMember" id="ixv-6769">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-6825">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000212315_ClassMember" id="ixv-6829">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000212315_ClassMember" id="ixv-6840">Fidelity Advisor Freedom&#xae; 2065 Fund</oef:FundName>
    <oef:ClassName contextRef="C000212315_ClassMember" id="ixv-6843">Fidelity Advisor Freedom&#xae; 2065 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000212315_ClassMember" id="ixv-6847">FDFVX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000212315_ClassMember" id="ixv-6866">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2065 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000212315_ClassMember" id="ixv-6868">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000212315_ClassMember" id="ixv-6873">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000212315_ClassMember" id="ixv-6875">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000212315_ClassMember" id="ixv-6878">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000212315_ClassMember" id="ixv-6881">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000212315_ClassMember" id="ixv-6888">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;131&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000212315_ClassMember"
      decimals="0"
      id="ixv-263810"
      unitRef="usd">131</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000212315_ClassMember"
      decimals="INF"
      id="ixv-263811"
      unitRef="pure">0.0119</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000212315_ClassMember" id="ixv-6930">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000212315_ClassMember" id="ixv-6964">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2019 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$8,295


$12,835


$13,152


$12,178


$14,679


$15,433


$18,601



Fidelity Freedom 2065 Composite Index&#x2120;


$10,000

$8,783


$13,174


$13,882


$12,862


$15,453


$16,465


$19,597



S&amp;P 500&#xae; Index


$10,000

$8,918


$13,944


$16,126


$14,879


$19,326


$20,920


$24,645



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000212315_LG_ClassMember_8YR" id="ixv-6985">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263812"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263813"
      unitRef="usd">8295</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263814"
      unitRef="usd">12835</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263815"
      unitRef="usd">13152</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263816"
      unitRef="usd">12178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263817"
      unitRef="usd">14679</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263818"
      unitRef="usd">15433</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263819"
      unitRef="usd">18601</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212315_LG_1_AdditionalIndexMember_8YR"
      id="ixv-7022">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2065 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263820"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263821"
      unitRef="usd">8783</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263822"
      unitRef="usd">13174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263823"
      unitRef="usd">13882</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263824"
      unitRef="usd">12862</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263825"
      unitRef="usd">15453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263826"
      unitRef="usd">16465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263827"
      unitRef="usd">19597</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212315_LG_2_AdditionalIndexMember_8YR"
      id="ixv-7059">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263828"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263829"
      unitRef="usd">8918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263830"
      unitRef="usd">13944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263831"
      unitRef="usd">16126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263832"
      unitRef="usd">14879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263833"
      unitRef="usd">19326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263834"
      unitRef="usd">20920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212315_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263835"
      unitRef="usd">24645</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000212315_ClassMember" id="ixv-7139">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class M (incl. 3.50% sales charge) &#160;

16.31%

6.94%


9.63%


Class M (without 3.50% sales charge)

20.53%

7.70%

10.21%


Fidelity Freedom 2065 Composite Index&#x2120;

19.02%


8.27%


10.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.30%




A&#160; &#160;From June 28, 2019

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_ClassMember_1YR"
      decimals="INF"
      id="ixv-263836"
      unitRef="pure">0.1631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_ClassMember_5YR"
      decimals="INF"
      id="ixv-263837"
      unitRef="pure">0.0694</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_ClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263838"
      unitRef="pure">0.0963</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263839"
      unitRef="pure">0.2053</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263840"
      unitRef="pure">0.0770</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263841"
      unitRef="pure">0.1021</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263842"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263843"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263844"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263845"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263846"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212315_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263847"
      unitRef="pure">0.1430</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000212315_Perf_2019-06-28_ClassMember"
      id="ixv-7223">2019-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000212315_ClassMember" id="ixv-7233">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000212315_ClassMember" id="ixv-7245">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000212315_ClassMember" id="ixv-7249">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000212315_ClassMember" id="ixv-7255">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;306,013,151&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,593,911&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000212315_InstantMember"
      decimals="0"
      id="ixv-263848"
      unitRef="usd">306013151</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000212315_InstantMember"
      decimals="INF"
      id="ixv-263849"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000212315_ClassMember"
      decimals="0"
      id="ixv-263850"
      unitRef="usd">1593911</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000212315_ClassMember"
      decimals="INF"
      id="ixv-263851"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000212315_ClassMember" id="ixv-7330">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212315_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263852"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263853"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263854"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263855"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000212315_ClassMember" id="ixv-7421">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212315_TH_0_Member"
      decimals="INF"
      id="ixv-263856"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_1_Member"
      decimals="INF"
      id="ixv-263857"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_2_Member"
      decimals="INF"
      id="ixv-263858"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_3_Member"
      decimals="INF"
      id="ixv-263859"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_4_Member"
      decimals="INF"
      id="ixv-263860"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_5_Member"
      decimals="INF"
      id="ixv-263861"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_6_Member"
      decimals="INF"
      id="ixv-263862"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_7_Member"
      decimals="INF"
      id="ixv-263863"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_8_Member"
      decimals="INF"
      id="ixv-263864"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212315_TH_9_Member"
      decimals="INF"
      id="ixv-263865"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000212315_ClassMember" id="ixv-7546">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000212315_ClassMember" id="ixv-7552">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000212315_ClassMember" id="ixv-7556">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000212315_ClassMember" id="ixv-7559">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000212315_ClassMember" id="ixv-7563">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000212315_ClassMember" id="ixv-7574">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000212315_ClassMember" id="ixv-7590">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-7646">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000212312_ClassMember" id="ixv-7650">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000212312_ClassMember" id="ixv-7661">Fidelity Advisor Freedom&#xae; 2065 Fund</oef:FundName>
    <oef:ClassName contextRef="C000212312_ClassMember" id="ixv-7664">Fidelity Advisor Freedom&#xae; 2065 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000212312_ClassMember" id="ixv-7668">FDFSX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000212312_ClassMember" id="ixv-7687">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2065 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000212312_ClassMember" id="ixv-7689">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000212312_ClassMember" id="ixv-7694">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000212312_ClassMember" id="ixv-7696">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000212312_ClassMember" id="ixv-7699">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000212312_ClassMember" id="ixv-7702">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000212312_ClassMember" id="ixv-7709">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000212312_ClassMember"
      decimals="0"
      id="ixv-263866"
      unitRef="usd">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000212312_ClassMember"
      decimals="INF"
      id="ixv-263867"
      unitRef="pure">0.0069</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000212312_ClassMember" id="ixv-7751">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000212312_ClassMember" id="ixv-7785">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2019 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$8,622


$13,423


$13,818


$12,852


$15,588


$16,456


$19,935



Fidelity Freedom 2065 Composite Index&#x2120;


$10,000

$8,783


$13,174


$13,882


$12,862


$15,453


$16,465


$19,597



S&amp;P 500&#xae; Index


$10,000

$8,918


$13,944


$16,126


$14,879


$19,326


$20,920


$24,645



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000212312_LG_ClassMember_8YR" id="ixv-7804">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263868"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263869"
      unitRef="usd">8622</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263870"
      unitRef="usd">13423</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263871"
      unitRef="usd">13818</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263872"
      unitRef="usd">12852</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263873"
      unitRef="usd">15588</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263874"
      unitRef="usd">16456</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263875"
      unitRef="usd">19935</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212312_LG_1_AdditionalIndexMember_8YR"
      id="ixv-7841">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2065 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263876"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263877"
      unitRef="usd">8783</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263878"
      unitRef="usd">13174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263879"
      unitRef="usd">13882</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263880"
      unitRef="usd">12862</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263881"
      unitRef="usd">15453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263882"
      unitRef="usd">16465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263883"
      unitRef="usd">19597</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212312_LG_2_AdditionalIndexMember_8YR"
      id="ixv-7878">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263884"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263885"
      unitRef="usd">8918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263886"
      unitRef="usd">13944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263887"
      unitRef="usd">16126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263888"
      unitRef="usd">14879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263889"
      unitRef="usd">19326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263890"
      unitRef="usd">20920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212312_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263891"
      unitRef="usd">24645</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000212312_ClassMember" id="ixv-7958">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class I

21.14%

8.23%

10.76%


Fidelity Freedom 2065 Composite Index&#x2120;

19.02%


8.27%


10.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.30%




A&#160; &#160;From June 28, 2019

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263892"
      unitRef="pure">0.2114</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263893"
      unitRef="pure">0.0823</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263894"
      unitRef="pure">0.1076</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263895"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263896"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263897"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263898"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263899"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212312_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263900"
      unitRef="pure">0.1430</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000212312_Perf_2019-06-28_ClassMember"
      id="ixv-8027">2019-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000212312_ClassMember" id="ixv-8037">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000212312_ClassMember" id="ixv-8049">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000212312_ClassMember" id="ixv-8053">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000212312_ClassMember" id="ixv-8059">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;306,013,151&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,593,911&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000212312_InstantMember"
      decimals="0"
      id="ixv-263901"
      unitRef="usd">306013151</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000212312_InstantMember"
      decimals="INF"
      id="ixv-263902"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000212312_ClassMember"
      decimals="0"
      id="ixv-263903"
      unitRef="usd">1593911</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000212312_ClassMember"
      decimals="INF"
      id="ixv-263904"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000212312_ClassMember" id="ixv-8134">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212312_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263905"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263906"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263907"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263908"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000212312_ClassMember" id="ixv-8225">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212312_TH_0_Member"
      decimals="INF"
      id="ixv-263909"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_1_Member"
      decimals="INF"
      id="ixv-263910"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_2_Member"
      decimals="INF"
      id="ixv-263911"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_3_Member"
      decimals="INF"
      id="ixv-263912"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_4_Member"
      decimals="INF"
      id="ixv-263913"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_5_Member"
      decimals="INF"
      id="ixv-263914"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_6_Member"
      decimals="INF"
      id="ixv-263915"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_7_Member"
      decimals="INF"
      id="ixv-263916"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_8_Member"
      decimals="INF"
      id="ixv-263917"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212312_TH_9_Member"
      decimals="INF"
      id="ixv-263918"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000212312_ClassMember" id="ixv-8350">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000212312_ClassMember" id="ixv-8356">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000212312_ClassMember" id="ixv-8360">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000212312_ClassMember" id="ixv-8363">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000212312_ClassMember" id="ixv-8367">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000212312_ClassMember" id="ixv-8378">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000212312_ClassMember" id="ixv-8394">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-8450">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000212311_ClassMember" id="ixv-8454">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000212311_ClassMember" id="ixv-8465">Fidelity Advisor Freedom&#xae; 2065 Fund</oef:FundName>
    <oef:ClassName contextRef="C000212311_ClassMember" id="ixv-8468">Fidelity Advisor Freedom&#xae; 2065 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000212311_ClassMember" id="ixv-8472">FDFYX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000212311_ClassMember" id="ixv-8491">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2065 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000212311_ClassMember" id="ixv-8493">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000212311_ClassMember" id="ixv-8498">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000212311_ClassMember" id="ixv-8500">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000212311_ClassMember" id="ixv-8503">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000212311_ClassMember" id="ixv-8506">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000212311_ClassMember" id="ixv-8513">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;186&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000212311_ClassMember"
      decimals="0"
      id="ixv-263919"
      unitRef="usd">186</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000212311_ClassMember"
      decimals="INF"
      id="ixv-263920"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000212311_ClassMember" id="ixv-8555">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000212311_ClassMember" id="ixv-8589">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2019 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$8,562


$13,182


$13,445


$12,386


$14,855


$15,539


$18,640



Fidelity Freedom 2065 Composite Index&#x2120;


$10,000

$8,783


$13,174


$13,882


$12,862


$15,453


$16,465


$19,597



S&amp;P 500&#xae; Index


$10,000

$8,918


$13,944


$16,126


$14,879


$19,326


$20,920


$24,645



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000212311_LG_ClassMember_8YR" id="ixv-8608">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263921"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263922"
      unitRef="usd">8562</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263923"
      unitRef="usd">13182</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263924"
      unitRef="usd">13445</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263925"
      unitRef="usd">12386</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263926"
      unitRef="usd">14855</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263927"
      unitRef="usd">15539</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263928"
      unitRef="usd">18640</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212311_LG_1_AdditionalIndexMember_8YR"
      id="ixv-8645">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2065 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263929"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263930"
      unitRef="usd">8783</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263931"
      unitRef="usd">13174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263932"
      unitRef="usd">13882</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263933"
      unitRef="usd">12862</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263934"
      unitRef="usd">15453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263935"
      unitRef="usd">16465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263936"
      unitRef="usd">19597</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212311_LG_2_AdditionalIndexMember_8YR"
      id="ixv-8682">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263937"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263938"
      unitRef="usd">8918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263939"
      unitRef="usd">13944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263940"
      unitRef="usd">16126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263941"
      unitRef="usd">14879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263942"
      unitRef="usd">19326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263943"
      unitRef="usd">20920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212311_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263944"
      unitRef="usd">24645</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000212311_ClassMember" id="ixv-8762">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class C &#160;(incl. contingent deferred sales charge)

18.95%

7.17%


9.66%


Class C

19.95%

7.17%

9.66%


Fidelity Freedom 2065 Composite Index&#x2120;

19.02%


8.27%


10.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.30%




A&#160; &#160;From June 28, 2019

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_ClassMember_1YR"
      decimals="INF"
      id="ixv-263945"
      unitRef="pure">0.1895</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_ClassMember_5YR"
      decimals="INF"
      id="ixv-263946"
      unitRef="pure">0.0717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_ClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263947"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-263948"
      unitRef="pure">0.1995</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-263949"
      unitRef="pure">0.0717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-263950"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-263951"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-263952"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-263953"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-263954"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-263955"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212311_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-263956"
      unitRef="pure">0.1430</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000212311_Perf_2019-06-28_ClassMember"
      id="ixv-8847">2019-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000212311_ClassMember" id="ixv-8857">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000212311_ClassMember" id="ixv-8869">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000212311_ClassMember" id="ixv-8873">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000212311_ClassMember" id="ixv-8879">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;306,013,151&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,593,911&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000212311_InstantMember"
      decimals="0"
      id="ixv-263957"
      unitRef="usd">306013151</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000212311_InstantMember"
      decimals="INF"
      id="ixv-263958"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000212311_ClassMember"
      decimals="0"
      id="ixv-263959"
      unitRef="usd">1593911</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000212311_ClassMember"
      decimals="INF"
      id="ixv-263960"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000212311_ClassMember" id="ixv-8954">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212311_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-263961"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-263962"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-263963"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-263964"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000212311_ClassMember" id="ixv-9045">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212311_TH_0_Member"
      decimals="INF"
      id="ixv-263965"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_1_Member"
      decimals="INF"
      id="ixv-263966"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_2_Member"
      decimals="INF"
      id="ixv-263967"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_3_Member"
      decimals="INF"
      id="ixv-263968"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_4_Member"
      decimals="INF"
      id="ixv-263969"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_5_Member"
      decimals="INF"
      id="ixv-263970"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_6_Member"
      decimals="INF"
      id="ixv-263971"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_7_Member"
      decimals="INF"
      id="ixv-263972"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_8_Member"
      decimals="INF"
      id="ixv-263973"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212311_TH_9_Member"
      decimals="INF"
      id="ixv-263974"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000212311_ClassMember" id="ixv-9170">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000212311_ClassMember" id="ixv-9176">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000212311_ClassMember" id="ixv-9180">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000212311_ClassMember" id="ixv-9183">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000212311_ClassMember" id="ixv-9187">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000212311_ClassMember" id="ixv-9198">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000212311_ClassMember" id="ixv-9214">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-9270">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000212314_ClassMember" id="ixv-9274">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000212314_ClassMember" id="ixv-9285">Fidelity Advisor Freedom&#xae; 2065 Fund</oef:FundName>
    <oef:ClassName contextRef="C000212314_ClassMember" id="ixv-9288">Fidelity Advisor Freedom&#xae; 2065 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000212314_ClassMember" id="ixv-9292">FDFZX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000212314_ClassMember" id="ixv-9311">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2065 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000212314_ClassMember" id="ixv-9313">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000212314_ClassMember" id="ixv-9318">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000212314_ClassMember" id="ixv-9320">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000212314_ClassMember" id="ixv-9323">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000212314_ClassMember" id="ixv-9326">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000212314_ClassMember" id="ixv-9333">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000212314_ClassMember"
      decimals="0"
      id="ixv-263975"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000212314_ClassMember"
      decimals="INF"
      id="ixv-263976"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000212314_ClassMember" id="ixv-9375">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000212314_ClassMember" id="ixv-9409">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2019 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$8,113


$12,589


$12,935


$12,006


$14,513


$15,282


$18,478



Fidelity Freedom 2065 Composite Index&#x2120;


$10,000

$8,783


$13,174


$13,882


$12,862


$15,453


$16,465


$19,597



S&amp;P 500&#xae; Index


$10,000

$8,918


$13,944


$16,126


$14,879


$19,326


$20,920


$24,645



&#160;

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000212314_LG_ClassMember_8YR" id="ixv-9430">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-263977"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-263978"
      unitRef="usd">8113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-263979"
      unitRef="usd">12589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-263980"
      unitRef="usd">12935</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-263981"
      unitRef="usd">12006</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-263982"
      unitRef="usd">14513</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-263983"
      unitRef="usd">15282</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-263984"
      unitRef="usd">18478</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212314_LG_1_AdditionalIndexMember_8YR"
      id="ixv-9467">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2065 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263985"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263986"
      unitRef="usd">8783</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263987"
      unitRef="usd">13174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263988"
      unitRef="usd">13882</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263989"
      unitRef="usd">12862</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263990"
      unitRef="usd">15453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263991"
      unitRef="usd">16465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-263992"
      unitRef="usd">19597</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000212314_LG_2_AdditionalIndexMember_8YR"
      id="ixv-9504">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-263993"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-263994"
      unitRef="usd">8918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-263995"
      unitRef="usd">13944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-263996"
      unitRef="usd">16126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-263997"
      unitRef="usd">14879</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-263998"
      unitRef="usd">19326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-263999"
      unitRef="usd">20920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000212314_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264000"
      unitRef="usd">24645</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000212314_ClassMember" id="ixv-9584">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class A (incl. 5.75% sales charge) &#160;

13.96%

6.71%


9.52%


Class A (without 5.75% sales charge)

20.91%

7.98%

10.49%


Fidelity Freedom 2065 Composite Index&#x2120;

19.02%


8.27%


10.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.30%




A&#160; &#160;From June 28, 2019

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_ClassMember_1YR"
      decimals="INF"
      id="ixv-264001"
      unitRef="pure">0.1396</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_ClassMember_5YR"
      decimals="INF"
      id="ixv-264002"
      unitRef="pure">0.0671</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_ClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264003"
      unitRef="pure">0.0952</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264004"
      unitRef="pure">0.2091</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264005"
      unitRef="pure">0.0798</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264006"
      unitRef="pure">0.1049</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264007"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264008"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264009"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264010"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264011"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000212314_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264012"
      unitRef="pure">0.1430</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000212314_Perf_2019-06-28_ClassMember"
      id="ixv-9668">2019-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000212314_ClassMember" id="ixv-9678">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000212314_ClassMember" id="ixv-9690">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000212314_ClassMember" id="ixv-9694">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000212314_ClassMember" id="ixv-9700">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;306,013,151&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,593,911&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000212314_InstantMember"
      decimals="0"
      id="ixv-264013"
      unitRef="usd">306013151</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000212314_InstantMember"
      decimals="INF"
      id="ixv-264014"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000212314_ClassMember"
      decimals="0"
      id="ixv-264015"
      unitRef="usd">1593911</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000212314_ClassMember"
      decimals="INF"
      id="ixv-264016"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000212314_ClassMember" id="ixv-9775">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212314_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264017"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264018"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264019"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264020"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000212314_ClassMember" id="ixv-9866">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000212314_TH_0_Member"
      decimals="INF"
      id="ixv-264021"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_1_Member"
      decimals="INF"
      id="ixv-264022"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_2_Member"
      decimals="INF"
      id="ixv-264023"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_3_Member"
      decimals="INF"
      id="ixv-264024"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_4_Member"
      decimals="INF"
      id="ixv-264025"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_5_Member"
      decimals="INF"
      id="ixv-264026"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_6_Member"
      decimals="INF"
      id="ixv-264027"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_7_Member"
      decimals="INF"
      id="ixv-264028"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_8_Member"
      decimals="INF"
      id="ixv-264029"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000212314_TH_9_Member"
      decimals="INF"
      id="ixv-264030"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000212314_ClassMember" id="ixv-9991">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000212314_ClassMember" id="ixv-9997">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000212314_ClassMember" id="ixv-10001">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000212314_ClassMember" id="ixv-10004">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000212314_ClassMember" id="ixv-10008">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000212314_ClassMember" id="ixv-10019">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000212314_ClassMember" id="ixv-10035">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-10091">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182227_ClassMember" id="ixv-10095">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182227_ClassMember" id="ixv-10106">Fidelity Advisor Freedom&#xae; 2060 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182227_ClassMember" id="ixv-10109">Fidelity Advisor Freedom&#xae; 2060 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182227_ClassMember" id="ixv-10113">FNGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182227_ClassMember" id="ixv-10132">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2060 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182227_ClassMember" id="ixv-10134">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182227_ClassMember" id="ixv-10139">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182227_ClassMember" id="ixv-10141">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182227_ClassMember" id="ixv-10144">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182227_ClassMember" id="ixv-10147">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182227_ClassMember" id="ixv-10154">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182227_ClassMember"
      decimals="0"
      id="ixv-264031"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182227_ClassMember"
      decimals="INF"
      id="ixv-264032"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182227_ClassMember" id="ixv-10196">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182227_ClassMember" id="ixv-10230">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,914


$11,310


$10,152


$15,849


$16,361


$15,255


$18,545


$19,649


$23,860



Fidelity Freedom 2060 Composite Index&#x2120;


$10,000

$10,921


$11,461


$10,454


$15,681


$16,524


$15,310


$18,394


$19,598


$23,326



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182227_LG_ClassMember_10YR" id="ixv-10249">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264033"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264034"
      unitRef="usd">10914</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264035"
      unitRef="usd">11310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264036"
      unitRef="usd">10152</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264037"
      unitRef="usd">15849</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264038"
      unitRef="usd">16361</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264039"
      unitRef="usd">15255</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264040"
      unitRef="usd">18545</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264041"
      unitRef="usd">19649</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264042"
      unitRef="usd">23860</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182227_LG_1_AdditionalIndexMember_10YR"
      id="ixv-10294">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2060 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264043"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264044"
      unitRef="usd">10921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264045"
      unitRef="usd">11461</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264046"
      unitRef="usd">10454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264047"
      unitRef="usd">15681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264048"
      unitRef="usd">16524</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264049"
      unitRef="usd">15310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264050"
      unitRef="usd">18394</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264051"
      unitRef="usd">19598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264052"
      unitRef="usd">23326</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182227_LG_2_AdditionalIndexMember_10YR"
      id="ixv-10339">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264053"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264054"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264055"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264056"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264057"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264058"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264059"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264060"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264061"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182227_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264062"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182227_ClassMember" id="ixv-10433">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

21.43%

8.53%

10.36%


Fidelity Freedom 2060 Composite Index&#x2120;

19.02%


8.27%


10.08%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264063"
      unitRef="pure">0.2143</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264064"
      unitRef="pure">0.0853</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264065"
      unitRef="pure">0.1036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264066"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264067"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264068"
      unitRef="pure">0.1008</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264069"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264070"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182227_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264071"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182227_Perf_2017-06-06_ClassMember"
      id="ixv-10502">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182227_ClassMember" id="ixv-10512">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182227_ClassMember" id="ixv-10524">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182227_ClassMember" id="ixv-10528">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182227_ClassMember" id="ixv-10534">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;845,286,045&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,753,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182227_InstantMember"
      decimals="0"
      id="ixv-264072"
      unitRef="usd">845286045</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182227_InstantMember"
      decimals="INF"
      id="ixv-264073"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182227_ClassMember"
      decimals="0"
      id="ixv-264074"
      unitRef="usd">4753966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182227_ClassMember"
      decimals="INF"
      id="ixv-264075"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182227_ClassMember" id="ixv-10609">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182227_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264076"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264077"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264078"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264079"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182227_ClassMember" id="ixv-10700">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182227_TH_0_Member"
      decimals="INF"
      id="ixv-264080"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_1_Member"
      decimals="INF"
      id="ixv-264081"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_2_Member"
      decimals="INF"
      id="ixv-264082"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_3_Member"
      decimals="INF"
      id="ixv-264083"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_4_Member"
      decimals="INF"
      id="ixv-264084"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_5_Member"
      decimals="INF"
      id="ixv-264085"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_6_Member"
      decimals="INF"
      id="ixv-264086"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_7_Member"
      decimals="INF"
      id="ixv-264087"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_8_Member"
      decimals="INF"
      id="ixv-264088"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182227_TH_9_Member"
      decimals="INF"
      id="ixv-264089"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182227_ClassMember" id="ixv-10825">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182227_ClassMember" id="ixv-10831">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182227_ClassMember" id="ixv-10835">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182227_ClassMember" id="ixv-10838">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182227_ClassMember" id="ixv-10842">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000182227_ClassMember" id="ixv-10853">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182227_ClassMember" id="ixv-10860">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-10916">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205068_ClassMember" id="ixv-10920">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205068_ClassMember" id="ixv-10931">Fidelity Advisor Freedom&#xae; 2060 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205068_ClassMember" id="ixv-10934">Fidelity Advisor Freedom&#xae; 2060 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205068_ClassMember" id="ixv-10938">FIJTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205068_ClassMember" id="ixv-10957">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2060 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205068_ClassMember" id="ixv-10959">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205068_ClassMember" id="ixv-10964">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205068_ClassMember" id="ixv-10966">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205068_ClassMember" id="ixv-10969">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205068_ClassMember" id="ixv-10972">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205068_ClassMember" id="ixv-10979">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.64&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205068_ClassMember"
      decimals="0"
      id="ixv-264090"
      unitRef="usd">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205068_ClassMember"
      decimals="INF"
      id="ixv-264091"
      unitRef="pure">0.0064</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205068_ClassMember" id="ixv-11021">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205068_ClassMember" id="ixv-11055">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,866


$8,848


$13,793


$14,215


$13,232


$16,059


$16,986


$20,587



Fidelity Freedom 2060 Composite Index&#x2120;


$10,000

$9,883


$9,014


$13,522


$14,248


$13,202


$15,861


$16,899


$20,114



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205068_LG_ClassMember_9YR" id="ixv-11074">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264092"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264093"
      unitRef="usd">9866</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264094"
      unitRef="usd">8848</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264095"
      unitRef="usd">13793</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264096"
      unitRef="usd">14215</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264097"
      unitRef="usd">13232</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264098"
      unitRef="usd">16059</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264099"
      unitRef="usd">16986</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264100"
      unitRef="usd">20587</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205068_LG_1_AdditionalIndexMember_9YR"
      id="ixv-11115">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2060 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264101"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264102"
      unitRef="usd">9883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264103"
      unitRef="usd">9014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264104"
      unitRef="usd">13522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264105"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264106"
      unitRef="usd">13202</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264107"
      unitRef="usd">15861</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264108"
      unitRef="usd">16899</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264109"
      unitRef="usd">20114</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205068_LG_2_AdditionalIndexMember_9YR"
      id="ixv-11156">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264110"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264111"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264112"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264113"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264114"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264115"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264116"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264117"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205068_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264118"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205068_ClassMember" id="ixv-11243">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

21.20%

8.34%

10.11%


Fidelity Freedom 2060 Composite Index&#x2120;

19.02%


8.27%


9.77%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264119"
      unitRef="pure">0.2120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264120"
      unitRef="pure">0.0834</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264121"
      unitRef="pure">0.1011</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264122"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264123"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264124"
      unitRef="pure">0.0977</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264125"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264126"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205068_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264127"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205068_Perf_2018-10-02_ClassMember"
      id="ixv-11312">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205068_ClassMember" id="ixv-11322">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205068_ClassMember" id="ixv-11334">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205068_ClassMember" id="ixv-11338">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205068_ClassMember" id="ixv-11344">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;845,286,045&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,753,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205068_InstantMember"
      decimals="0"
      id="ixv-264128"
      unitRef="usd">845286045</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205068_InstantMember"
      decimals="INF"
      id="ixv-264129"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205068_ClassMember"
      decimals="0"
      id="ixv-264130"
      unitRef="usd">4753966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205068_ClassMember"
      decimals="INF"
      id="ixv-264131"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205068_ClassMember" id="ixv-11419">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205068_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264132"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264133"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264134"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264135"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205068_ClassMember" id="ixv-11510">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205068_TH_0_Member"
      decimals="INF"
      id="ixv-264136"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_1_Member"
      decimals="INF"
      id="ixv-264137"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_2_Member"
      decimals="INF"
      id="ixv-264138"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_3_Member"
      decimals="INF"
      id="ixv-264139"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_4_Member"
      decimals="INF"
      id="ixv-264140"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_5_Member"
      decimals="INF"
      id="ixv-264141"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_6_Member"
      decimals="INF"
      id="ixv-264142"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_7_Member"
      decimals="INF"
      id="ixv-264143"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_8_Member"
      decimals="INF"
      id="ixv-264144"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205068_TH_9_Member"
      decimals="INF"
      id="ixv-264145"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205068_ClassMember" id="ixv-11635">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205068_ClassMember" id="ixv-11641">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205068_ClassMember" id="ixv-11645">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205068_ClassMember" id="ixv-11648">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205068_ClassMember" id="ixv-11652">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000205068_ClassMember" id="ixv-11663">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205068_ClassMember" id="ixv-11670">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-11726">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000144489_ClassMember" id="ixv-11730">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000144489_ClassMember" id="ixv-11741">Fidelity Advisor Freedom&#xae; 2060 Fund</oef:FundName>
    <oef:ClassName contextRef="C000144489_ClassMember" id="ixv-11744">Fidelity Advisor Freedom&#xae; 2060 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000144489_ClassMember" id="ixv-11748">FDKTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000144489_ClassMember" id="ixv-11767">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2060 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000144489_ClassMember" id="ixv-11769">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000144489_ClassMember" id="ixv-11774">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000144489_ClassMember" id="ixv-11776">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000144489_ClassMember" id="ixv-11779">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000144489_ClassMember" id="ixv-11782">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000144489_ClassMember" id="ixv-11789">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;131&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000144489_ClassMember"
      decimals="0"
      id="ixv-264146"
      unitRef="usd">131</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000144489_ClassMember"
      decimals="INF"
      id="ixv-264147"
      unitRef="pure">0.0119</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000144489_ClassMember" id="ixv-11831">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000144489_ClassMember" id="ixv-11865">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$11,125


$12,577


$12,932


$11,527


$17,866


$18,312


$16,939


$20,441


$21,466


$25,880



Fidelity Freedom 2060 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,838



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000144489_LG_ClassMember_11YR" id="ixv-11886">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264148"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264149"
      unitRef="usd">11125</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264150"
      unitRef="usd">12577</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264151"
      unitRef="usd">12932</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264152"
      unitRef="usd">11527</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264153"
      unitRef="usd">17866</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264154"
      unitRef="usd">18312</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264155"
      unitRef="usd">16939</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264156"
      unitRef="usd">20441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264157"
      unitRef="usd">21466</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264158"
      unitRef="usd">25880</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144489_LG_1_AdditionalIndexMember_11YR"
      id="ixv-11935">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2060 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264159"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264160"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264161"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264162"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264163"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264164"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264165"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264166"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264167"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264168"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264169"
      unitRef="usd">27838</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144489_LG_2_AdditionalIndexMember_11YR"
      id="ixv-11984">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264170"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264171"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264172"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264173"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264174"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264175"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264176"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264177"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264178"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264179"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144489_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264180"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000144489_ClassMember" id="ixv-12085">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

16.34%

6.93%


9.98%


Class M (without 3.50% sales charge)

20.56%

7.69%

10.37%


Fidelity Freedom 2060 Composite Index&#x2120;

19.02%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_ClassMember_1YR"
      decimals="INF"
      id="ixv-264181"
      unitRef="pure">0.1634</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_ClassMember_5YR"
      decimals="INF"
      id="ixv-264182"
      unitRef="pure">0.0693</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_ClassMember_10YR"
      decimals="INF"
      id="ixv-264183"
      unitRef="pure">0.0998</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264184"
      unitRef="pure">0.2056</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264185"
      unitRef="pure">0.0769</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264186"
      unitRef="pure">0.1037</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264187"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264188"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264189"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264190"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264191"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144489_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264192"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000144489_ClassMember" id="ixv-12170">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000144489_ClassMember" id="ixv-12182">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000144489_ClassMember" id="ixv-12186">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000144489_ClassMember" id="ixv-12192">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;845,286,045&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,753,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000144489_InstantMember"
      decimals="0"
      id="ixv-264193"
      unitRef="usd">845286045</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000144489_InstantMember"
      decimals="INF"
      id="ixv-264194"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000144489_ClassMember"
      decimals="0"
      id="ixv-264195"
      unitRef="usd">4753966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000144489_ClassMember"
      decimals="INF"
      id="ixv-264196"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000144489_ClassMember" id="ixv-12267">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144489_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264197"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264198"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264199"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264200"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000144489_ClassMember" id="ixv-12358">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144489_TH_0_Member"
      decimals="INF"
      id="ixv-264201"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_1_Member"
      decimals="INF"
      id="ixv-264202"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_2_Member"
      decimals="INF"
      id="ixv-264203"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_3_Member"
      decimals="INF"
      id="ixv-264204"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_4_Member"
      decimals="INF"
      id="ixv-264205"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_5_Member"
      decimals="INF"
      id="ixv-264206"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_6_Member"
      decimals="INF"
      id="ixv-264207"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_7_Member"
      decimals="INF"
      id="ixv-264208"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_8_Member"
      decimals="INF"
      id="ixv-264209"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144489_TH_9_Member"
      decimals="INF"
      id="ixv-264210"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000144489_ClassMember" id="ixv-12483">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000144489_ClassMember" id="ixv-12489">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000144489_ClassMember" id="ixv-12493">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000144489_ClassMember" id="ixv-12496">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000144489_ClassMember" id="ixv-12500">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000144489_ClassMember" id="ixv-12511">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000144489_ClassMember" id="ixv-12527">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-12583">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000144491_ClassMember" id="ixv-12587">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000144491_ClassMember" id="ixv-12598">Fidelity Advisor Freedom&#xae; 2060 Fund</oef:FundName>
    <oef:ClassName contextRef="C000144491_ClassMember" id="ixv-12601">Fidelity Advisor Freedom&#xae; 2060 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000144491_ClassMember" id="ixv-12605">FDKQX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000144491_ClassMember" id="ixv-12624">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2060 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000144491_ClassMember" id="ixv-12626">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000144491_ClassMember" id="ixv-12631">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000144491_ClassMember" id="ixv-12633">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000144491_ClassMember" id="ixv-12636">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000144491_ClassMember" id="ixv-12639">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000144491_ClassMember" id="ixv-12646">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000144491_ClassMember"
      decimals="0"
      id="ixv-264211"
      unitRef="usd">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000144491_ClassMember"
      decimals="INF"
      id="ixv-264212"
      unitRef="pure">0.0069</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000144491_ClassMember" id="ixv-12688">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000144491_ClassMember" id="ixv-12722">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,582


$13,161


$13,606


$12,194


$18,976


$19,548


$18,170


$22,029


$23,269


$28,192



Fidelity Freedom 2060 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,838



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000144491_LG_ClassMember_11YR" id="ixv-12741">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264213"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264214"
      unitRef="usd">11582</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264215"
      unitRef="usd">13161</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264216"
      unitRef="usd">13606</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264217"
      unitRef="usd">12194</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264218"
      unitRef="usd">18976</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264219"
      unitRef="usd">19548</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264220"
      unitRef="usd">18170</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264221"
      unitRef="usd">22029</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264222"
      unitRef="usd">23269</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264223"
      unitRef="usd">28192</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144491_LG_1_AdditionalIndexMember_11YR"
      id="ixv-12790">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2060 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264224"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264225"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264226"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264227"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264228"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264229"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264230"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264231"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264232"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264233"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264234"
      unitRef="usd">27838</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144491_LG_2_AdditionalIndexMember_11YR"
      id="ixv-12839">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264235"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264236"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264237"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264238"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264239"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264240"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264241"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264242"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264243"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264244"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144491_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264245"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000144491_ClassMember" id="ixv-12940">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

21.15%

8.24%

10.92%


Fidelity Freedom 2060 Composite Index&#x2120;

19.02%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264246"
      unitRef="pure">0.2115</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264247"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264248"
      unitRef="pure">0.1092</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264249"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264250"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264251"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264252"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264253"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144491_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264254"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000144491_ClassMember" id="ixv-13010">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000144491_ClassMember" id="ixv-13022">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000144491_ClassMember" id="ixv-13026">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000144491_ClassMember" id="ixv-13032">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;845,286,045&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,753,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000144491_InstantMember"
      decimals="0"
      id="ixv-264255"
      unitRef="usd">845286045</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000144491_InstantMember"
      decimals="INF"
      id="ixv-264256"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000144491_ClassMember"
      decimals="0"
      id="ixv-264257"
      unitRef="usd">4753966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000144491_ClassMember"
      decimals="INF"
      id="ixv-264258"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000144491_ClassMember" id="ixv-13107">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144491_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264259"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264260"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264261"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264262"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000144491_ClassMember" id="ixv-13198">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144491_TH_0_Member"
      decimals="INF"
      id="ixv-264263"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_1_Member"
      decimals="INF"
      id="ixv-264264"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_2_Member"
      decimals="INF"
      id="ixv-264265"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_3_Member"
      decimals="INF"
      id="ixv-264266"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_4_Member"
      decimals="INF"
      id="ixv-264267"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_5_Member"
      decimals="INF"
      id="ixv-264268"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_6_Member"
      decimals="INF"
      id="ixv-264269"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_7_Member"
      decimals="INF"
      id="ixv-264270"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_8_Member"
      decimals="INF"
      id="ixv-264271"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144491_TH_9_Member"
      decimals="INF"
      id="ixv-264272"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000144491_ClassMember" id="ixv-13323">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000144491_ClassMember" id="ixv-13329">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000144491_ClassMember" id="ixv-13333">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000144491_ClassMember" id="ixv-13336">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000144491_ClassMember" id="ixv-13340">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000144491_ClassMember" id="ixv-13351">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000144491_ClassMember" id="ixv-13367">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-13423">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000144490_ClassMember" id="ixv-13427">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000144490_ClassMember" id="ixv-13438">Fidelity Advisor Freedom&#xae; 2060 Fund</oef:FundName>
    <oef:ClassName contextRef="C000144490_ClassMember" id="ixv-13441">Fidelity Advisor Freedom&#xae; 2060 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000144490_ClassMember" id="ixv-13445">FDKSX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000144490_ClassMember" id="ixv-13464">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2060 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000144490_ClassMember" id="ixv-13466">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000144490_ClassMember" id="ixv-13471">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000144490_ClassMember" id="ixv-13473">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000144490_ClassMember" id="ixv-13476">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000144490_ClassMember" id="ixv-13479">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000144490_ClassMember" id="ixv-13486">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;186&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000144490_ClassMember"
      decimals="0"
      id="ixv-264273"
      unitRef="usd">186</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000144490_ClassMember"
      decimals="INF"
      id="ixv-264274"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000144490_ClassMember" id="ixv-13528">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000144490_ClassMember" id="ixv-13562">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,465


$12,902


$13,202


$11,714


$18,056


$18,406


$16,940


$20,346


$21,432


$25,910



Fidelity Freedom 2060 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,838



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000144490_LG_ClassMember_11YR" id="ixv-13581">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264275"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264276"
      unitRef="usd">11465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264277"
      unitRef="usd">12902</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264278"
      unitRef="usd">13202</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264279"
      unitRef="usd">11714</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264280"
      unitRef="usd">18056</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264281"
      unitRef="usd">18406</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264282"
      unitRef="usd">16940</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264283"
      unitRef="usd">20346</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264284"
      unitRef="usd">21432</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264285"
      unitRef="usd">25910</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144490_LG_1_AdditionalIndexMember_11YR"
      id="ixv-13630">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2060 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264286"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264287"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264288"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264289"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264290"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264291"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264292"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264293"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264294"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264295"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264296"
      unitRef="usd">27838</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144490_LG_2_AdditionalIndexMember_11YR"
      id="ixv-13679">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264297"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264298"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264299"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264300"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264301"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264302"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264303"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264304"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264305"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264306"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144490_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264307"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000144490_ClassMember" id="ixv-13780">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

18.92%

7.16%


9.99%


Class C

19.92%

7.16%

9.99%


Fidelity Freedom 2060 Composite Index&#x2120;

19.02%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_ClassMember_1YR"
      decimals="INF"
      id="ixv-264308"
      unitRef="pure">0.1892</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_ClassMember_5YR"
      decimals="INF"
      id="ixv-264309"
      unitRef="pure">0.0716</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_ClassMember_10YR"
      decimals="INF"
      id="ixv-264310"
      unitRef="pure">0.0999</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264311"
      unitRef="pure">0.1992</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264312"
      unitRef="pure">0.0716</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264313"
      unitRef="pure">0.0999</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264314"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264315"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264316"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264317"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264318"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144490_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264319"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000144490_ClassMember" id="ixv-13866">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000144490_ClassMember" id="ixv-13878">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000144490_ClassMember" id="ixv-13882">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000144490_ClassMember" id="ixv-13888">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;845,286,045&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,753,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000144490_InstantMember"
      decimals="0"
      id="ixv-264320"
      unitRef="usd">845286045</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000144490_InstantMember"
      decimals="INF"
      id="ixv-264321"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000144490_ClassMember"
      decimals="0"
      id="ixv-264322"
      unitRef="usd">4753966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000144490_ClassMember"
      decimals="INF"
      id="ixv-264323"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000144490_ClassMember" id="ixv-13963">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144490_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264324"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264325"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264326"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264327"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000144490_ClassMember" id="ixv-14054">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144490_TH_0_Member"
      decimals="INF"
      id="ixv-264328"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_1_Member"
      decimals="INF"
      id="ixv-264329"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_2_Member"
      decimals="INF"
      id="ixv-264330"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_3_Member"
      decimals="INF"
      id="ixv-264331"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_4_Member"
      decimals="INF"
      id="ixv-264332"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_5_Member"
      decimals="INF"
      id="ixv-264333"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_6_Member"
      decimals="INF"
      id="ixv-264334"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_7_Member"
      decimals="INF"
      id="ixv-264335"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_8_Member"
      decimals="INF"
      id="ixv-264336"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144490_TH_9_Member"
      decimals="INF"
      id="ixv-264337"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000144490_ClassMember" id="ixv-14179">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000144490_ClassMember" id="ixv-14185">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000144490_ClassMember" id="ixv-14189">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000144490_ClassMember" id="ixv-14192">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000144490_ClassMember" id="ixv-14196">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000144490_ClassMember" id="ixv-14207">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000144490_ClassMember" id="ixv-14223">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-14279">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000144488_ClassMember" id="ixv-14283">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000144488_ClassMember" id="ixv-14294">Fidelity Advisor Freedom&#xae; 2060 Fund</oef:FundName>
    <oef:ClassName contextRef="C000144488_ClassMember" id="ixv-14297">Fidelity Advisor Freedom&#xae; 2060 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000144488_ClassMember" id="ixv-14301">FDKPX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000144488_ClassMember" id="ixv-14320">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2060 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000144488_ClassMember" id="ixv-14322">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000144488_ClassMember" id="ixv-14327">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000144488_ClassMember" id="ixv-14329">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000144488_ClassMember" id="ixv-14332">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000144488_ClassMember" id="ixv-14335">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000144488_ClassMember" id="ixv-14342">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000144488_ClassMember"
      decimals="0"
      id="ixv-264338"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000144488_ClassMember"
      decimals="INF"
      id="ixv-264339"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000144488_ClassMember" id="ixv-14384">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000144488_ClassMember" id="ixv-14418">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,890


$12,354


$12,737


$11,381


$17,672


$18,156


$16,842


$20,367


$21,454


$25,936



Fidelity Freedom 2060 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,838



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000144488_LG_ClassMember_11YR" id="ixv-14439">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264340"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264341"
      unitRef="usd">10890</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264342"
      unitRef="usd">12354</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264343"
      unitRef="usd">12737</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264344"
      unitRef="usd">11381</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264345"
      unitRef="usd">17672</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264346"
      unitRef="usd">18156</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264347"
      unitRef="usd">16842</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264348"
      unitRef="usd">20367</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264349"
      unitRef="usd">21454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264350"
      unitRef="usd">25936</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144488_LG_1_AdditionalIndexMember_11YR"
      id="ixv-14488">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2060 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264351"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264352"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264353"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264354"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264355"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264356"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264357"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264358"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264359"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264360"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264361"
      unitRef="usd">27838</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000144488_LG_2_AdditionalIndexMember_11YR"
      id="ixv-14537">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264362"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264363"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264364"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264365"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264366"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264367"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264368"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264369"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264370"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264371"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000144488_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264372"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000144488_ClassMember" id="ixv-14638">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

13.94%

6.70%


10.00%


Class A (without 5.75% sales charge)

20.89%

7.98%

10.65%


Fidelity Freedom 2060 Composite Index&#x2120;

19.02%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_ClassMember_1YR"
      decimals="INF"
      id="ixv-264373"
      unitRef="pure">0.1394</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_ClassMember_5YR"
      decimals="INF"
      id="ixv-264374"
      unitRef="pure">0.0670</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_ClassMember_10YR"
      decimals="INF"
      id="ixv-264375"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264376"
      unitRef="pure">0.2089</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264377"
      unitRef="pure">0.0798</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264378"
      unitRef="pure">0.1065</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264379"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264380"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264381"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264382"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264383"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000144488_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264384"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000144488_ClassMember" id="ixv-14723">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000144488_ClassMember" id="ixv-14735">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000144488_ClassMember" id="ixv-14739">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000144488_ClassMember" id="ixv-14745">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;845,286,045&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;4,753,966&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000144488_InstantMember"
      decimals="0"
      id="ixv-264385"
      unitRef="usd">845286045</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000144488_InstantMember"
      decimals="INF"
      id="ixv-264386"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000144488_ClassMember"
      decimals="0"
      id="ixv-264387"
      unitRef="usd">4753966</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000144488_ClassMember"
      decimals="INF"
      id="ixv-264388"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000144488_ClassMember" id="ixv-14820">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

56.0


International Equity Funds

41.4


Bond Funds

2.3


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 56.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144488_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264389"
      unitRef="pure">0.560</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264390"
      unitRef="pure">0.414</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264391"
      unitRef="pure">0.023</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264392"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000144488_ClassMember" id="ixv-14911">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Advisor Series Equity Growth Fund

8.4


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

6.0


&#160;


&#160;

79.7

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000144488_TH_0_Member"
      decimals="INF"
      id="ixv-264393"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_1_Member"
      decimals="INF"
      id="ixv-264394"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_2_Member"
      decimals="INF"
      id="ixv-264395"
      unitRef="pure">0.084</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_3_Member"
      decimals="INF"
      id="ixv-264396"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_4_Member"
      decimals="INF"
      id="ixv-264397"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_5_Member"
      decimals="INF"
      id="ixv-264398"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_6_Member"
      decimals="INF"
      id="ixv-264399"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_7_Member"
      decimals="INF"
      id="ixv-264400"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_8_Member"
      decimals="INF"
      id="ixv-264401"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000144488_TH_9_Member"
      decimals="INF"
      id="ixv-264402"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000144488_ClassMember" id="ixv-15036">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000144488_ClassMember" id="ixv-15042">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000144488_ClassMember" id="ixv-15046">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000144488_ClassMember" id="ixv-15049">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000144488_ClassMember" id="ixv-15053">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000144488_ClassMember" id="ixv-15064">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period. &lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000144488_ClassMember" id="ixv-15080">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-15136">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182225_ClassMember" id="ixv-15140">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182225_ClassMember" id="ixv-15151">Fidelity Advisor Freedom&#xae; 2055 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182225_ClassMember" id="ixv-15154">Fidelity Advisor Freedom&#xae; 2055 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182225_ClassMember" id="ixv-15158">FBGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182225_ClassMember" id="ixv-15177">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2055 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182225_ClassMember" id="ixv-15179">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182225_ClassMember" id="ixv-15184">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182225_ClassMember" id="ixv-15186">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182225_ClassMember" id="ixv-15189">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182225_ClassMember" id="ixv-15192">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182225_ClassMember" id="ixv-15199">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182225_ClassMember"
      decimals="0"
      id="ixv-264403"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182225_ClassMember"
      decimals="INF"
      id="ixv-264404"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182225_ClassMember" id="ixv-15241">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182225_ClassMember" id="ixv-15275">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,916


$11,308


$10,152


$15,852


$16,375


$15,260


$18,555


$19,647


$23,862



Fidelity Freedom 2055 Composite Index&#x2120;


$10,000

$10,921


$11,461


$10,454


$15,681


$16,524


$15,310


$18,394


$19,598


$23,328



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182225_LG_ClassMember_10YR" id="ixv-15294">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264405"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264406"
      unitRef="usd">10916</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264407"
      unitRef="usd">11308</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264408"
      unitRef="usd">10152</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264409"
      unitRef="usd">15852</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264410"
      unitRef="usd">16375</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264411"
      unitRef="usd">15260</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264412"
      unitRef="usd">18555</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264413"
      unitRef="usd">19647</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264414"
      unitRef="usd">23862</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182225_LG_1_AdditionalIndexMember_10YR"
      id="ixv-15339">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2055 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264415"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264416"
      unitRef="usd">10921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264417"
      unitRef="usd">11461</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264418"
      unitRef="usd">10454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264419"
      unitRef="usd">15681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264420"
      unitRef="usd">16524</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264421"
      unitRef="usd">15310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264422"
      unitRef="usd">18394</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264423"
      unitRef="usd">19598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264424"
      unitRef="usd">23328</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182225_LG_2_AdditionalIndexMember_10YR"
      id="ixv-15384">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264425"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264426"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264427"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264428"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264429"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264430"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264431"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264432"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264433"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182225_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264434"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182225_ClassMember" id="ixv-15478">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

21.45%

8.52%

10.36%


Fidelity Freedom 2055 Composite Index&#x2120;

19.03%


8.27%


10.08%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264435"
      unitRef="pure">0.2145</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264436"
      unitRef="pure">0.0852</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264437"
      unitRef="pure">0.1036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264438"
      unitRef="pure">0.1903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264439"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264440"
      unitRef="pure">0.1008</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264441"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264442"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182225_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264443"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182225_Perf_2017-06-06_ClassMember"
      id="ixv-15547">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182225_ClassMember" id="ixv-15557">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182225_ClassMember" id="ixv-15569">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182225_ClassMember" id="ixv-15573">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182225_ClassMember" id="ixv-15579">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,441,152,043&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;43&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;8,317,159&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182225_InstantMember"
      decimals="0"
      id="ixv-264444"
      unitRef="usd">1441152043</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182225_InstantMember"
      decimals="INF"
      id="ixv-264445"
      unitRef="holding">43</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182225_ClassMember"
      decimals="0"
      id="ixv-264446"
      unitRef="usd">8317159</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182225_ClassMember"
      decimals="INF"
      id="ixv-264447"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182225_ClassMember" id="ixv-15654">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.9


International Equity Funds

41.3


Bond Funds

2.5


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182225_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264448"
      unitRef="pure">0.559</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264449"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264450"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264451"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182225_ClassMember" id="ixv-15745">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.5


&#160;


Fidelity Advisor Series Equity Growth Fund

8.5


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.9


&#160;


&#160;

79.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182225_TH_0_Member"
      decimals="INF"
      id="ixv-264452"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_1_Member"
      decimals="INF"
      id="ixv-264453"
      unitRef="pure">0.105</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_2_Member"
      decimals="INF"
      id="ixv-264454"
      unitRef="pure">0.085</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_3_Member"
      decimals="INF"
      id="ixv-264455"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_4_Member"
      decimals="INF"
      id="ixv-264456"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_5_Member"
      decimals="INF"
      id="ixv-264457"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_6_Member"
      decimals="INF"
      id="ixv-264458"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_7_Member"
      decimals="INF"
      id="ixv-264459"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_8_Member"
      decimals="INF"
      id="ixv-264460"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182225_TH_9_Member"
      decimals="INF"
      id="ixv-264461"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182225_ClassMember" id="ixv-15870">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182225_ClassMember" id="ixv-15876">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182225_ClassMember" id="ixv-15880">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182225_ClassMember" id="ixv-15883">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182225_ClassMember" id="ixv-15887">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182225_ClassMember" id="ixv-15898">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-15956">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205067_ClassMember" id="ixv-15960">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205067_ClassMember" id="ixv-15971">Fidelity Advisor Freedom&#xae; 2055 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205067_ClassMember" id="ixv-15974">Fidelity Advisor Freedom&#xae; 2055 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205067_ClassMember" id="ixv-15978">FIJSX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205067_ClassMember" id="ixv-15997">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2055 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205067_ClassMember" id="ixv-15999">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205067_ClassMember" id="ixv-16004">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205067_ClassMember" id="ixv-16006">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205067_ClassMember" id="ixv-16009">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205067_ClassMember" id="ixv-16012">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205067_ClassMember" id="ixv-16019">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.64&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205067_ClassMember"
      decimals="0"
      id="ixv-264462"
      unitRef="usd">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205067_ClassMember"
      decimals="INF"
      id="ixv-264463"
      unitRef="pure">0.0064</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205067_ClassMember" id="ixv-16061">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205067_ClassMember" id="ixv-16095">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,865


$8,851


$13,791


$14,219


$13,241


$16,069


$16,990


$20,582



Fidelity Freedom 2055 Composite Index&#x2120;


$10,000

$9,883


$9,014


$13,522


$14,248


$13,202


$15,861


$16,899


$20,115



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205067_LG_ClassMember_9YR" id="ixv-16114">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264464"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264465"
      unitRef="usd">9865</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264466"
      unitRef="usd">8851</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264467"
      unitRef="usd">13791</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264468"
      unitRef="usd">14219</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264469"
      unitRef="usd">13241</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264470"
      unitRef="usd">16069</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264471"
      unitRef="usd">16990</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264472"
      unitRef="usd">20582</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205067_LG_1_AdditionalIndexMember_9YR"
      id="ixv-16155">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2055 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264473"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264474"
      unitRef="usd">9883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264475"
      unitRef="usd">9014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264476"
      unitRef="usd">13522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264477"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264478"
      unitRef="usd">13202</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264479"
      unitRef="usd">15861</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264480"
      unitRef="usd">16899</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264481"
      unitRef="usd">20115</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205067_LG_2_AdditionalIndexMember_9YR"
      id="ixv-16196">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264482"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264483"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264484"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264485"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264486"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264487"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264488"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264489"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205067_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264490"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205067_ClassMember" id="ixv-16283">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

21.14%

8.34%

10.10%


Fidelity Freedom 2055 Composite Index&#x2120;

19.03%


8.27%


9.77%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264491"
      unitRef="pure">0.2114</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264492"
      unitRef="pure">0.0834</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264493"
      unitRef="pure">0.1010</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264494"
      unitRef="pure">0.1903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264495"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264496"
      unitRef="pure">0.0977</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264497"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264498"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205067_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264499"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205067_Perf_2018-10-02_ClassMember"
      id="ixv-16352">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205067_ClassMember" id="ixv-16362">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205067_ClassMember" id="ixv-16374">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205067_ClassMember" id="ixv-16378">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205067_ClassMember" id="ixv-16384">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,441,152,043&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;43&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;8,317,159&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205067_InstantMember"
      decimals="0"
      id="ixv-264500"
      unitRef="usd">1441152043</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205067_InstantMember"
      decimals="INF"
      id="ixv-264501"
      unitRef="holding">43</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205067_ClassMember"
      decimals="0"
      id="ixv-264502"
      unitRef="usd">8317159</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205067_ClassMember"
      decimals="INF"
      id="ixv-264503"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205067_ClassMember" id="ixv-16459">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.9


International Equity Funds

41.3


Bond Funds

2.5


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205067_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264504"
      unitRef="pure">0.559</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264505"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264506"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264507"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205067_ClassMember" id="ixv-16550">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.5


&#160;


Fidelity Advisor Series Equity Growth Fund

8.5


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.9


&#160;


&#160;

79.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205067_TH_0_Member"
      decimals="INF"
      id="ixv-264508"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_1_Member"
      decimals="INF"
      id="ixv-264509"
      unitRef="pure">0.105</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_2_Member"
      decimals="INF"
      id="ixv-264510"
      unitRef="pure">0.085</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_3_Member"
      decimals="INF"
      id="ixv-264511"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_4_Member"
      decimals="INF"
      id="ixv-264512"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_5_Member"
      decimals="INF"
      id="ixv-264513"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_6_Member"
      decimals="INF"
      id="ixv-264514"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_7_Member"
      decimals="INF"
      id="ixv-264515"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_8_Member"
      decimals="INF"
      id="ixv-264516"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205067_TH_9_Member"
      decimals="INF"
      id="ixv-264517"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205067_ClassMember" id="ixv-16675">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205067_ClassMember" id="ixv-16681">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205067_ClassMember" id="ixv-16685">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205067_ClassMember" id="ixv-16688">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205067_ClassMember" id="ixv-16692">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205067_ClassMember" id="ixv-16703">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-16761">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000101222_ClassMember" id="ixv-16765">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000101222_ClassMember" id="ixv-16776">Fidelity Advisor Freedom&#xae; 2055 Fund</oef:FundName>
    <oef:ClassName contextRef="C000101222_ClassMember" id="ixv-16779">Fidelity Advisor Freedom&#xae; 2055 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000101222_ClassMember" id="ixv-16783">FHFTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000101222_ClassMember" id="ixv-16802">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2055 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000101222_ClassMember" id="ixv-16804">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000101222_ClassMember" id="ixv-16809">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000101222_ClassMember" id="ixv-16811">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000101222_ClassMember" id="ixv-16814">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000101222_ClassMember" id="ixv-16817">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000101222_ClassMember" id="ixv-16824">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;131&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000101222_ClassMember"
      decimals="0"
      id="ixv-264518"
      unitRef="usd">131</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000101222_ClassMember"
      decimals="INF"
      id="ixv-264519"
      unitRef="pure">0.0119</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000101222_ClassMember" id="ixv-16866">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000101222_ClassMember" id="ixv-16900">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$11,123


$12,585


$12,946


$11,543


$17,878


$18,329


$16,950


$20,448


$21,482


$25,904



Fidelity Freedom 2055 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,840



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000101222_LG_ClassMember_11YR" id="ixv-16921">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264520"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264521"
      unitRef="usd">11123</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264522"
      unitRef="usd">12585</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264523"
      unitRef="usd">12946</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264524"
      unitRef="usd">11543</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264525"
      unitRef="usd">17878</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264526"
      unitRef="usd">18329</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264527"
      unitRef="usd">16950</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264528"
      unitRef="usd">20448</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264529"
      unitRef="usd">21482</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264530"
      unitRef="usd">25904</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101222_LG_1_AdditionalIndexMember_11YR"
      id="ixv-16970">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2055 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264531"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264532"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264533"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264534"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264535"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264536"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264537"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264538"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264539"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264540"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264541"
      unitRef="usd">27840</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101222_LG_2_AdditionalIndexMember_11YR"
      id="ixv-17019">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264542"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264543"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264544"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264545"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264546"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264547"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264548"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264549"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264550"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264551"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101222_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264552"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000101222_ClassMember" id="ixv-17120">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

16.37%

6.93%


9.99%


Class M (without 3.50% sales charge)

20.59%

7.70%

10.38%


Fidelity Freedom 2055 Composite Index&#x2120;

19.03%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_ClassMember_1YR"
      decimals="INF"
      id="ixv-264553"
      unitRef="pure">0.1637</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_ClassMember_5YR"
      decimals="INF"
      id="ixv-264554"
      unitRef="pure">0.0693</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_ClassMember_10YR"
      decimals="INF"
      id="ixv-264555"
      unitRef="pure">0.0999</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264556"
      unitRef="pure">0.2059</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264557"
      unitRef="pure">0.0770</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264558"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264559"
      unitRef="pure">0.1903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264560"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264561"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264562"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264563"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101222_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264564"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000101222_ClassMember" id="ixv-17205">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000101222_ClassMember" id="ixv-17217">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000101222_ClassMember" id="ixv-17221">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000101222_ClassMember" id="ixv-17227">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,441,152,043&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;43&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;8,317,159&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000101222_InstantMember"
      decimals="0"
      id="ixv-264565"
      unitRef="usd">1441152043</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000101222_InstantMember"
      decimals="INF"
      id="ixv-264566"
      unitRef="holding">43</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000101222_ClassMember"
      decimals="0"
      id="ixv-264567"
      unitRef="usd">8317159</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000101222_ClassMember"
      decimals="INF"
      id="ixv-264568"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000101222_ClassMember" id="ixv-17302">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.9


International Equity Funds

41.3


Bond Funds

2.5


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101222_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264569"
      unitRef="pure">0.559</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264570"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264571"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264572"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000101222_ClassMember" id="ixv-17393">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.5


&#160;


Fidelity Advisor Series Equity Growth Fund

8.5


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.9


&#160;


&#160;

79.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101222_TH_0_Member"
      decimals="INF"
      id="ixv-264573"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_1_Member"
      decimals="INF"
      id="ixv-264574"
      unitRef="pure">0.105</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_2_Member"
      decimals="INF"
      id="ixv-264575"
      unitRef="pure">0.085</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_3_Member"
      decimals="INF"
      id="ixv-264576"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_4_Member"
      decimals="INF"
      id="ixv-264577"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_5_Member"
      decimals="INF"
      id="ixv-264578"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_6_Member"
      decimals="INF"
      id="ixv-264579"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_7_Member"
      decimals="INF"
      id="ixv-264580"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_8_Member"
      decimals="INF"
      id="ixv-264581"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101222_TH_9_Member"
      decimals="INF"
      id="ixv-264582"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000101222_ClassMember" id="ixv-17518">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000101222_ClassMember" id="ixv-17524">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000101222_ClassMember" id="ixv-17528">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000101222_ClassMember" id="ixv-17531">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000101222_ClassMember" id="ixv-17535">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000101222_ClassMember" id="ixv-17546">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000101222_ClassMember" id="ixv-17560">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-17616">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000101223_ClassMember" id="ixv-17620">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000101223_ClassMember" id="ixv-17631">Fidelity Advisor Freedom&#xae; 2055 Fund</oef:FundName>
    <oef:ClassName contextRef="C000101223_ClassMember" id="ixv-17634">Fidelity Advisor Freedom&#xae; 2055 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000101223_ClassMember" id="ixv-17638">FHFIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000101223_ClassMember" id="ixv-17657">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2055 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000101223_ClassMember" id="ixv-17659">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000101223_ClassMember" id="ixv-17664">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000101223_ClassMember" id="ixv-17666">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000101223_ClassMember" id="ixv-17669">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000101223_ClassMember" id="ixv-17672">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000101223_ClassMember" id="ixv-17679">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000101223_ClassMember"
      decimals="0"
      id="ixv-264583"
      unitRef="usd">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000101223_ClassMember"
      decimals="INF"
      id="ixv-264584"
      unitRef="pure">0.0069</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000101223_ClassMember" id="ixv-17721">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000101223_ClassMember" id="ixv-17755">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,581


$13,171


$13,611


$12,189


$18,981


$19,551


$18,184


$22,043


$23,285


$28,206



Fidelity Freedom 2055 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,840



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000101223_LG_ClassMember_11YR" id="ixv-17774">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264585"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264586"
      unitRef="usd">11581</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264587"
      unitRef="usd">13171</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264588"
      unitRef="usd">13611</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264589"
      unitRef="usd">12189</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264590"
      unitRef="usd">18981</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264591"
      unitRef="usd">19551</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264592"
      unitRef="usd">18184</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264593"
      unitRef="usd">22043</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264594"
      unitRef="usd">23285</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264595"
      unitRef="usd">28206</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101223_LG_1_AdditionalIndexMember_11YR"
      id="ixv-17823">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2055 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264596"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264597"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264598"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264599"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264600"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264601"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264602"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264603"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264604"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264605"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264606"
      unitRef="usd">27840</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101223_LG_2_AdditionalIndexMember_11YR"
      id="ixv-17872">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264607"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264608"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264609"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264610"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264611"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264612"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264613"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264614"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264615"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264616"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101223_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264617"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000101223_ClassMember" id="ixv-17973">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

21.13%

8.24%

10.93%


Fidelity Freedom 2055 Composite Index&#x2120;

19.03%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264618"
      unitRef="pure">0.2113</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264619"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264620"
      unitRef="pure">0.1093</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264621"
      unitRef="pure">0.1903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264622"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264623"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264624"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264625"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101223_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264626"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000101223_ClassMember" id="ixv-18043">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000101223_ClassMember" id="ixv-18055">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000101223_ClassMember" id="ixv-18059">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000101223_ClassMember" id="ixv-18065">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,441,152,043&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;43&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;8,317,159&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000101223_InstantMember"
      decimals="0"
      id="ixv-264627"
      unitRef="usd">1441152043</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000101223_InstantMember"
      decimals="INF"
      id="ixv-264628"
      unitRef="holding">43</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000101223_ClassMember"
      decimals="0"
      id="ixv-264629"
      unitRef="usd">8317159</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000101223_ClassMember"
      decimals="INF"
      id="ixv-264630"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000101223_ClassMember" id="ixv-18140">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.9


International Equity Funds

41.3


Bond Funds

2.5


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101223_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264631"
      unitRef="pure">0.559</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264632"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264633"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264634"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000101223_ClassMember" id="ixv-18231">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.5


&#160;


Fidelity Advisor Series Equity Growth Fund

8.5


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.9


&#160;


&#160;

79.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101223_TH_0_Member"
      decimals="INF"
      id="ixv-264635"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_1_Member"
      decimals="INF"
      id="ixv-264636"
      unitRef="pure">0.105</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_2_Member"
      decimals="INF"
      id="ixv-264637"
      unitRef="pure">0.085</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_3_Member"
      decimals="INF"
      id="ixv-264638"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_4_Member"
      decimals="INF"
      id="ixv-264639"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_5_Member"
      decimals="INF"
      id="ixv-264640"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_6_Member"
      decimals="INF"
      id="ixv-264641"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_7_Member"
      decimals="INF"
      id="ixv-264642"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_8_Member"
      decimals="INF"
      id="ixv-264643"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101223_TH_9_Member"
      decimals="INF"
      id="ixv-264644"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000101223_ClassMember" id="ixv-18356">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000101223_ClassMember" id="ixv-18362">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000101223_ClassMember" id="ixv-18366">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000101223_ClassMember" id="ixv-18369">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000101223_ClassMember" id="ixv-18373">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000101223_ClassMember" id="ixv-18384">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000101223_ClassMember" id="ixv-18398">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-18454">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000101221_ClassMember" id="ixv-18458">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000101221_ClassMember" id="ixv-18469">Fidelity Advisor Freedom&#xae; 2055 Fund</oef:FundName>
    <oef:ClassName contextRef="C000101221_ClassMember" id="ixv-18472">Fidelity Advisor Freedom&#xae; 2055 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000101221_ClassMember" id="ixv-18476">FHFCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000101221_ClassMember" id="ixv-18495">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2055 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000101221_ClassMember" id="ixv-18497">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000101221_ClassMember" id="ixv-18502">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000101221_ClassMember" id="ixv-18504">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000101221_ClassMember" id="ixv-18507">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000101221_ClassMember" id="ixv-18510">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000101221_ClassMember" id="ixv-18517">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;186&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000101221_ClassMember"
      decimals="0"
      id="ixv-264645"
      unitRef="usd">186</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000101221_ClassMember"
      decimals="INF"
      id="ixv-264646"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000101221_ClassMember" id="ixv-18559">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000101221_ClassMember" id="ixv-18593">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,462


$12,908


$13,208


$11,717


$18,052


$18,417


$16,943


$20,347


$21,431


$25,895



Fidelity Freedom 2055 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,840



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000101221_LG_ClassMember_11YR" id="ixv-18612">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264647"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264648"
      unitRef="usd">11462</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264649"
      unitRef="usd">12908</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264650"
      unitRef="usd">13208</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264651"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264652"
      unitRef="usd">18052</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264653"
      unitRef="usd">18417</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264654"
      unitRef="usd">16943</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264655"
      unitRef="usd">20347</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264656"
      unitRef="usd">21431</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264657"
      unitRef="usd">25895</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101221_LG_1_AdditionalIndexMember_11YR"
      id="ixv-18661">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2055 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264658"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264659"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264660"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264661"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264662"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264663"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264664"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264665"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264666"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264667"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264668"
      unitRef="usd">27840</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101221_LG_2_AdditionalIndexMember_11YR"
      id="ixv-18710">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264669"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264670"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264671"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264672"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264673"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264674"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264675"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264676"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264677"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264678"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101221_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264679"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000101221_ClassMember" id="ixv-18811">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

18.87%

7.16%


9.98%


Class C

19.87%

7.16%

9.98%


Fidelity Freedom 2055 Composite Index&#x2120;

19.03%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_ClassMember_1YR"
      decimals="INF"
      id="ixv-264680"
      unitRef="pure">0.1887</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_ClassMember_5YR"
      decimals="INF"
      id="ixv-264681"
      unitRef="pure">0.0716</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_ClassMember_10YR"
      decimals="INF"
      id="ixv-264682"
      unitRef="pure">0.0998</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264683"
      unitRef="pure">0.1987</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264684"
      unitRef="pure">0.0716</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264685"
      unitRef="pure">0.0998</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264686"
      unitRef="pure">0.1903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264687"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264688"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264689"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264690"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101221_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264691"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000101221_ClassMember" id="ixv-18897">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000101221_ClassMember" id="ixv-18909">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000101221_ClassMember" id="ixv-18913">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000101221_ClassMember" id="ixv-18919">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,441,152,043&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;43&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;8,317,159&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000101221_InstantMember"
      decimals="0"
      id="ixv-264692"
      unitRef="usd">1441152043</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000101221_InstantMember"
      decimals="INF"
      id="ixv-264693"
      unitRef="holding">43</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000101221_ClassMember"
      decimals="0"
      id="ixv-264694"
      unitRef="usd">8317159</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000101221_ClassMember"
      decimals="INF"
      id="ixv-264695"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000101221_ClassMember" id="ixv-18994">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.9


International Equity Funds

41.3


Bond Funds

2.5


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101221_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264696"
      unitRef="pure">0.559</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264697"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264698"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264699"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000101221_ClassMember" id="ixv-19085">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.5


&#160;


Fidelity Advisor Series Equity Growth Fund

8.5


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.9


&#160;


&#160;

79.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101221_TH_0_Member"
      decimals="INF"
      id="ixv-264700"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_1_Member"
      decimals="INF"
      id="ixv-264701"
      unitRef="pure">0.105</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_2_Member"
      decimals="INF"
      id="ixv-264702"
      unitRef="pure">0.085</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_3_Member"
      decimals="INF"
      id="ixv-264703"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_4_Member"
      decimals="INF"
      id="ixv-264704"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_5_Member"
      decimals="INF"
      id="ixv-264705"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_6_Member"
      decimals="INF"
      id="ixv-264706"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_7_Member"
      decimals="INF"
      id="ixv-264707"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_8_Member"
      decimals="INF"
      id="ixv-264708"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101221_TH_9_Member"
      decimals="INF"
      id="ixv-264709"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000101221_ClassMember" id="ixv-19210">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000101221_ClassMember" id="ixv-19216">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000101221_ClassMember" id="ixv-19220">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000101221_ClassMember" id="ixv-19223">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000101221_ClassMember" id="ixv-19227">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000101221_ClassMember" id="ixv-19238">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000101221_ClassMember" id="ixv-19252">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-19308">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000101220_ClassMember" id="ixv-19312">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000101220_ClassMember" id="ixv-19323">Fidelity Advisor Freedom&#xae; 2055 Fund</oef:FundName>
    <oef:ClassName contextRef="C000101220_ClassMember" id="ixv-19326">Fidelity Advisor Freedom&#xae; 2055 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000101220_ClassMember" id="ixv-19330">FHFAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000101220_ClassMember" id="ixv-19349">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2055 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000101220_ClassMember" id="ixv-19351">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000101220_ClassMember" id="ixv-19356">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000101220_ClassMember" id="ixv-19358">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000101220_ClassMember" id="ixv-19361">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000101220_ClassMember" id="ixv-19364">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000101220_ClassMember" id="ixv-19371">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000101220_ClassMember"
      decimals="0"
      id="ixv-264710"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000101220_ClassMember"
      decimals="INF"
      id="ixv-264711"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000101220_ClassMember" id="ixv-19413">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000101220_ClassMember" id="ixv-19447">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,885


$12,344


$12,725


$11,380


$17,674


$18,160


$16,832


$20,372


$21,457


$25,926



Fidelity Freedom 2055 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,840



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000101220_LG_ClassMember_11YR" id="ixv-19468">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264712"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264713"
      unitRef="usd">10885</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264714"
      unitRef="usd">12344</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264715"
      unitRef="usd">12725</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264716"
      unitRef="usd">11380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264717"
      unitRef="usd">17674</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264718"
      unitRef="usd">18160</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264719"
      unitRef="usd">16832</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264720"
      unitRef="usd">20372</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264721"
      unitRef="usd">21457</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264722"
      unitRef="usd">25926</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101220_LG_1_AdditionalIndexMember_11YR"
      id="ixv-19517">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2055 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264723"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264724"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264725"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264726"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264727"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264728"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264729"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264730"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264731"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264732"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264733"
      unitRef="usd">27840</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000101220_LG_2_AdditionalIndexMember_11YR"
      id="ixv-19566">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264734"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264735"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264736"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264737"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264738"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264739"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264740"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264741"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264742"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264743"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000101220_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264744"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000101220_ClassMember" id="ixv-19667">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

13.88%

6.69%


10.00%


Class A (without 5.75% sales charge)

20.83%

7.96%

10.65%


Fidelity Freedom 2055 Composite Index&#x2120;

19.03%


8.27%


10.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_ClassMember_1YR"
      decimals="INF"
      id="ixv-264745"
      unitRef="pure">0.1388</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_ClassMember_5YR"
      decimals="INF"
      id="ixv-264746"
      unitRef="pure">0.0669</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_ClassMember_10YR"
      decimals="INF"
      id="ixv-264747"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264748"
      unitRef="pure">0.2083</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264749"
      unitRef="pure">0.0796</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264750"
      unitRef="pure">0.1065</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264751"
      unitRef="pure">0.1903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264752"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264753"
      unitRef="pure">0.1078</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264754"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264755"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000101220_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264756"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000101220_ClassMember" id="ixv-19752">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000101220_ClassMember" id="ixv-19764">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000101220_ClassMember" id="ixv-19768">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000101220_ClassMember" id="ixv-19774">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,441,152,043&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;43&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;8,317,159&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000101220_InstantMember"
      decimals="0"
      id="ixv-264757"
      unitRef="usd">1441152043</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000101220_InstantMember"
      decimals="INF"
      id="ixv-264758"
      unitRef="holding">43</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000101220_ClassMember"
      decimals="0"
      id="ixv-264759"
      unitRef="usd">8317159</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000101220_ClassMember"
      decimals="INF"
      id="ixv-264760"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000101220_ClassMember" id="ixv-19849">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.9


International Equity Funds

41.3


Bond Funds

2.5


Short-Term Investments and Net Other Assets (Liabilities)

0.3




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 41.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 2.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.3


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101220_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264761"
      unitRef="pure">0.559</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264762"
      unitRef="pure">0.413</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264763"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264764"
      unitRef="pure">0.003</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000101220_ClassMember" id="ixv-19940">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.4


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.5


&#160;


Fidelity Advisor Series Equity Growth Fund

8.5


&#160;


Fidelity Series International Value Fund

7.7


&#160;


Fidelity Series Overseas Fund

7.7


&#160;


Fidelity Series International Growth Fund

7.7


&#160;


Fidelity Series Opportunistic Insights Fund

7.2


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.5


&#160;


Fidelity Series Value Discovery Fund

6.5


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.9


&#160;


&#160;

79.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000101220_TH_0_Member"
      decimals="INF"
      id="ixv-264765"
      unitRef="pure">0.114</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_1_Member"
      decimals="INF"
      id="ixv-264766"
      unitRef="pure">0.105</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_2_Member"
      decimals="INF"
      id="ixv-264767"
      unitRef="pure">0.085</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_3_Member"
      decimals="INF"
      id="ixv-264768"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_4_Member"
      decimals="INF"
      id="ixv-264769"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_5_Member"
      decimals="INF"
      id="ixv-264770"
      unitRef="pure">0.077</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_6_Member"
      decimals="INF"
      id="ixv-264771"
      unitRef="pure">0.072</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_7_Member"
      decimals="INF"
      id="ixv-264772"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_8_Member"
      decimals="INF"
      id="ixv-264773"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000101220_TH_9_Member"
      decimals="INF"
      id="ixv-264774"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000101220_ClassMember" id="ixv-20065">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000101220_ClassMember" id="ixv-20071">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000101220_ClassMember" id="ixv-20075">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000101220_ClassMember" id="ixv-20078">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000101220_ClassMember" id="ixv-20082">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000101220_ClassMember" id="ixv-20093">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000101220_ClassMember" id="ixv-20107">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-20163">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182224_ClassMember" id="ixv-20167">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182224_ClassMember" id="ixv-20178">Fidelity Advisor Freedom&#xae; 2050 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182224_ClassMember" id="ixv-20181">Fidelity Advisor Freedom&#xae; 2050 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182224_ClassMember" id="ixv-20185">FVGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182224_ClassMember" id="ixv-20204">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2050 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182224_ClassMember" id="ixv-20206">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182224_ClassMember" id="ixv-20211">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182224_ClassMember" id="ixv-20213">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182224_ClassMember" id="ixv-20216">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182224_ClassMember" id="ixv-20219">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182224_ClassMember" id="ixv-20226">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182224_ClassMember"
      decimals="0"
      id="ixv-264775"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182224_ClassMember"
      decimals="INF"
      id="ixv-264776"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182224_ClassMember" id="ixv-20268">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182224_ClassMember" id="ixv-20302">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,915


$11,302


$10,156


$15,844


$16,367


$15,248


$18,549


$19,653


$23,862



Fidelity Freedom 2050 Composite Index&#x2120;


$10,000

$10,921


$11,461


$10,454


$15,681


$16,524


$15,310


$18,394


$19,598


$23,336



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182224_LG_ClassMember_10YR" id="ixv-20321">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264777"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264778"
      unitRef="usd">10915</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264779"
      unitRef="usd">11302</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264780"
      unitRef="usd">10156</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264781"
      unitRef="usd">15844</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264782"
      unitRef="usd">16367</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264783"
      unitRef="usd">15248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264784"
      unitRef="usd">18549</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264785"
      unitRef="usd">19653</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264786"
      unitRef="usd">23862</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182224_LG_1_AdditionalIndexMember_10YR"
      id="ixv-20366">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2050 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264787"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264788"
      unitRef="usd">10921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264789"
      unitRef="usd">11461</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264790"
      unitRef="usd">10454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264791"
      unitRef="usd">15681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264792"
      unitRef="usd">16524</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264793"
      unitRef="usd">15310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264794"
      unitRef="usd">18394</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264795"
      unitRef="usd">19598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264796"
      unitRef="usd">23336</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182224_LG_2_AdditionalIndexMember_10YR"
      id="ixv-20411">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264797"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264798"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264799"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264800"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264801"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264802"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264803"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264804"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264805"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182224_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264806"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182224_ClassMember" id="ixv-20505">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

21.42%

8.53%

10.36%


Fidelity Freedom 2050 Composite Index&#x2120;

19.07%


8.27%


10.08%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264807"
      unitRef="pure">0.2142</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264808"
      unitRef="pure">0.0853</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264809"
      unitRef="pure">0.1036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264810"
      unitRef="pure">0.1907</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264811"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264812"
      unitRef="pure">0.1008</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264813"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264814"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182224_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264815"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182224_Perf_2017-06-06_ClassMember"
      id="ixv-20574">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182224_ClassMember" id="ixv-20584">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182224_ClassMember" id="ixv-20596">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182224_ClassMember" id="ixv-20600">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182224_ClassMember" id="ixv-20606">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,014,225,943&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;11,969,686&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182224_InstantMember"
      decimals="0"
      id="ixv-264816"
      unitRef="usd">2014225943</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182224_InstantMember"
      decimals="INF"
      id="ixv-264817"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182224_ClassMember"
      decimals="0"
      id="ixv-264818"
      unitRef="usd">11969686</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182224_ClassMember"
      decimals="INF"
      id="ixv-264819"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182224_ClassMember" id="ixv-20681">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.0


International Equity Funds

40.7


Bond Funds

3.9


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 3.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182224_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264820"
      unitRef="pure">0.550</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264821"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264822"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264823"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182224_ClassMember" id="ixv-20772">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.3


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.4


&#160;


Fidelity Advisor Series Equity Growth Fund

8.3


&#160;


Fidelity Series International Value Fund

7.6


&#160;


Fidelity Series Overseas Fund

7.5


&#160;


Fidelity Series International Growth Fund

7.5


&#160;


Fidelity Series Opportunistic Insights Fund

7.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.4


&#160;


Fidelity Series Value Discovery Fund

6.4


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

78.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182224_TH_0_Member"
      decimals="INF"
      id="ixv-264824"
      unitRef="pure">0.113</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_1_Member"
      decimals="INF"
      id="ixv-264825"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_2_Member"
      decimals="INF"
      id="ixv-264826"
      unitRef="pure">0.083</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_3_Member"
      decimals="INF"
      id="ixv-264827"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_4_Member"
      decimals="INF"
      id="ixv-264828"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_5_Member"
      decimals="INF"
      id="ixv-264829"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_6_Member"
      decimals="INF"
      id="ixv-264830"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_7_Member"
      decimals="INF"
      id="ixv-264831"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_8_Member"
      decimals="INF"
      id="ixv-264832"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182224_TH_9_Member"
      decimals="INF"
      id="ixv-264833"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182224_ClassMember" id="ixv-20897">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182224_ClassMember" id="ixv-20903">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182224_ClassMember" id="ixv-20907">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182224_ClassMember" id="ixv-20910">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182224_ClassMember" id="ixv-20914">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182224_ClassMember" id="ixv-20925">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-20983">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205066_ClassMember" id="ixv-20987">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205066_ClassMember" id="ixv-20998">Fidelity Advisor Freedom&#xae; 2050 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205066_ClassMember" id="ixv-21001">Fidelity Advisor Freedom&#xae; 2050 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205066_ClassMember" id="ixv-21005">FIJRX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205066_ClassMember" id="ixv-21024">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2050 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205066_ClassMember" id="ixv-21026">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205066_ClassMember" id="ixv-21031">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205066_ClassMember" id="ixv-21033">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205066_ClassMember" id="ixv-21036">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205066_ClassMember" id="ixv-21039">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205066_ClassMember" id="ixv-21046">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.64&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205066_ClassMember"
      decimals="0"
      id="ixv-264834"
      unitRef="usd">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205066_ClassMember"
      decimals="INF"
      id="ixv-264835"
      unitRef="pure">0.0064</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205066_ClassMember" id="ixv-21088">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205066_ClassMember" id="ixv-21122">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,866


$8,846


$13,797


$14,224


$13,239


$16,064


$16,978


$20,588



Fidelity Freedom 2050 Composite Index&#x2120;


$10,000

$9,883


$9,014


$13,522


$14,248


$13,202


$15,861


$16,899


$20,122



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205066_LG_ClassMember_9YR" id="ixv-21141">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264836"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264837"
      unitRef="usd">9866</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264838"
      unitRef="usd">8846</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264839"
      unitRef="usd">13797</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264840"
      unitRef="usd">14224</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264841"
      unitRef="usd">13239</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264842"
      unitRef="usd">16064</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264843"
      unitRef="usd">16978</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264844"
      unitRef="usd">20588</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205066_LG_1_AdditionalIndexMember_9YR"
      id="ixv-21182">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2050 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264845"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264846"
      unitRef="usd">9883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264847"
      unitRef="usd">9014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264848"
      unitRef="usd">13522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264849"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264850"
      unitRef="usd">13202</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264851"
      unitRef="usd">15861</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264852"
      unitRef="usd">16899</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264853"
      unitRef="usd">20122</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205066_LG_2_AdditionalIndexMember_9YR"
      id="ixv-21223">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264854"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264855"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264856"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264857"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264858"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264859"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264860"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264861"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205066_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264862"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205066_ClassMember" id="ixv-21310">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

21.26%

8.34%

10.11%


Fidelity Freedom 2050 Composite Index&#x2120;

19.07%


8.27%


9.77%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264863"
      unitRef="pure">0.2126</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264864"
      unitRef="pure">0.0834</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-264865"
      unitRef="pure">0.1011</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264866"
      unitRef="pure">0.1907</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264867"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-264868"
      unitRef="pure">0.0977</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264869"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264870"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205066_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-264871"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205066_Perf_2018-10-02_ClassMember"
      id="ixv-21379">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205066_ClassMember" id="ixv-21389">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205066_ClassMember" id="ixv-21401">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205066_ClassMember" id="ixv-21405">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205066_ClassMember" id="ixv-21411">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,014,225,943&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;11,969,686&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205066_InstantMember"
      decimals="0"
      id="ixv-264872"
      unitRef="usd">2014225943</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205066_InstantMember"
      decimals="INF"
      id="ixv-264873"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205066_ClassMember"
      decimals="0"
      id="ixv-264874"
      unitRef="usd">11969686</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205066_ClassMember"
      decimals="INF"
      id="ixv-264875"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205066_ClassMember" id="ixv-21486">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.0


International Equity Funds

40.7


Bond Funds

3.9


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 3.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205066_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-264876"
      unitRef="pure">0.550</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264877"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264878"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264879"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205066_ClassMember" id="ixv-21577">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.3


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.4


&#160;


Fidelity Advisor Series Equity Growth Fund

8.3


&#160;


Fidelity Series International Value Fund

7.6


&#160;


Fidelity Series Overseas Fund

7.5


&#160;


Fidelity Series International Growth Fund

7.5


&#160;


Fidelity Series Opportunistic Insights Fund

7.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.4


&#160;


Fidelity Series Value Discovery Fund

6.4


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

78.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205066_TH_0_Member"
      decimals="INF"
      id="ixv-264880"
      unitRef="pure">0.113</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_1_Member"
      decimals="INF"
      id="ixv-264881"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_2_Member"
      decimals="INF"
      id="ixv-264882"
      unitRef="pure">0.083</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_3_Member"
      decimals="INF"
      id="ixv-264883"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_4_Member"
      decimals="INF"
      id="ixv-264884"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_5_Member"
      decimals="INF"
      id="ixv-264885"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_6_Member"
      decimals="INF"
      id="ixv-264886"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_7_Member"
      decimals="INF"
      id="ixv-264887"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_8_Member"
      decimals="INF"
      id="ixv-264888"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205066_TH_9_Member"
      decimals="INF"
      id="ixv-264889"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205066_ClassMember" id="ixv-21702">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205066_ClassMember" id="ixv-21708">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205066_ClassMember" id="ixv-21712">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205066_ClassMember" id="ixv-21715">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205066_ClassMember" id="ixv-21719">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205066_ClassMember" id="ixv-21730">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-21788">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033056_ClassMember" id="ixv-21792">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033056_ClassMember" id="ixv-21803">Fidelity Advisor Freedom&#xae; 2050 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033056_ClassMember" id="ixv-21806">Fidelity Advisor Freedom&#xae; 2050 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033056_ClassMember" id="ixv-21810">FFFQX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033056_ClassMember" id="ixv-21829">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2050 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033056_ClassMember" id="ixv-21831">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033056_ClassMember" id="ixv-21836">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033056_ClassMember" id="ixv-21838">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033056_ClassMember" id="ixv-21841">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033056_ClassMember" id="ixv-21844">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033056_ClassMember" id="ixv-21851">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;131&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033056_ClassMember"
      decimals="0"
      id="ixv-264890"
      unitRef="usd">131</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033056_ClassMember"
      decimals="INF"
      id="ixv-264891"
      unitRef="pure">0.0119</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033056_ClassMember" id="ixv-21893">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033056_ClassMember" id="ixv-21927">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$11,119


$12,582


$12,939


$11,530


$17,861


$18,311


$16,937


$20,438


$21,469


$25,894



Fidelity Freedom 2050 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,849



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033056_LG_ClassMember_11YR" id="ixv-21948">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264892"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264893"
      unitRef="usd">11119</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264894"
      unitRef="usd">12582</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264895"
      unitRef="usd">12939</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264896"
      unitRef="usd">11530</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264897"
      unitRef="usd">17861</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264898"
      unitRef="usd">18311</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264899"
      unitRef="usd">16937</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264900"
      unitRef="usd">20438</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264901"
      unitRef="usd">21469</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264902"
      unitRef="usd">25894</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033056_LG_1_AdditionalIndexMember_11YR"
      id="ixv-21997">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2050 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264903"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264904"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264905"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264906"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264907"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264908"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264909"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264910"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264911"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264912"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264913"
      unitRef="usd">27849</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033056_LG_2_AdditionalIndexMember_11YR"
      id="ixv-22046">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264914"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264915"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264916"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264917"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264918"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264919"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264920"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264921"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264922"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264923"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033056_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264924"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033056_ClassMember" id="ixv-22147">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

16.39%

6.95%


9.98%


Class M (without 3.50% sales charge)

20.61%

7.71%

10.37%


Fidelity Freedom 2050 Composite Index&#x2120;

19.07%


8.27%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_ClassMember_1YR"
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      id="ixv-264926"
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      id="ixv-264927"
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    <oef:AvgAnnlRtrPct
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      id="ixv-264928"
      unitRef="pure">0.2061</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_NoLoadClassMember_5YR"
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      id="ixv-264929"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264930"
      unitRef="pure">0.1037</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_0_AdditionalIndexMember_1YR"
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      id="ixv-264931"
      unitRef="pure">0.1907</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_0_AdditionalIndexMember_5YR"
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      id="ixv-264932"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264933"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264934"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264935"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033056_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264936"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033056_ClassMember" id="ixv-22232">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033056_ClassMember" id="ixv-22244">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033056_ClassMember" id="ixv-22248">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033056_ClassMember" id="ixv-22254">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,014,225,943&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;11,969,686&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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    <oef:HoldingsCount
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      id="ixv-264938"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-264940"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033056_ClassMember" id="ixv-22329">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.0


International Equity Funds

40.7


Bond Funds

3.9


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 3.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
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      id="ixv-264941"
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    <oef:PctOfNav
      contextRef="C000033056_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-264942"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-264943"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-264944"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033056_ClassMember" id="ixv-22420">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.3


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.4


&#160;


Fidelity Advisor Series Equity Growth Fund

8.3


&#160;


Fidelity Series International Value Fund

7.6


&#160;


Fidelity Series Overseas Fund

7.5


&#160;


Fidelity Series International Growth Fund

7.5


&#160;


Fidelity Series Opportunistic Insights Fund

7.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.4


&#160;


Fidelity Series Value Discovery Fund

6.4


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

78.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033056_TH_0_Member"
      decimals="INF"
      id="ixv-264945"
      unitRef="pure">0.113</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_1_Member"
      decimals="INF"
      id="ixv-264946"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_2_Member"
      decimals="INF"
      id="ixv-264947"
      unitRef="pure">0.083</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_3_Member"
      decimals="INF"
      id="ixv-264948"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_4_Member"
      decimals="INF"
      id="ixv-264949"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_5_Member"
      decimals="INF"
      id="ixv-264950"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_6_Member"
      decimals="INF"
      id="ixv-264951"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_7_Member"
      decimals="INF"
      id="ixv-264952"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_8_Member"
      decimals="INF"
      id="ixv-264953"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033056_TH_9_Member"
      decimals="INF"
      id="ixv-264954"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033056_ClassMember" id="ixv-22545">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033056_ClassMember" id="ixv-22551">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033056_ClassMember" id="ixv-22555">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033056_ClassMember" id="ixv-22558">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033056_ClassMember" id="ixv-22562">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033056_ClassMember" id="ixv-22573">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033056_ClassMember" id="ixv-22587">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-22643">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033057_ClassMember" id="ixv-22647">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033057_ClassMember" id="ixv-22658">Fidelity Advisor Freedom&#xae; 2050 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033057_ClassMember" id="ixv-22661">Fidelity Advisor Freedom&#xae; 2050 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033057_ClassMember" id="ixv-22665">FFFPX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033057_ClassMember" id="ixv-22684">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2050 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033057_ClassMember" id="ixv-22686">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033057_ClassMember" id="ixv-22691">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033057_ClassMember" id="ixv-22693">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033057_ClassMember" id="ixv-22696">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033057_ClassMember" id="ixv-22699">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033057_ClassMember" id="ixv-22706">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033057_ClassMember"
      decimals="0"
      id="ixv-264955"
      unitRef="usd">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033057_ClassMember"
      decimals="INF"
      id="ixv-264956"
      unitRef="pure">0.0069</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033057_ClassMember" id="ixv-22748">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033057_ClassMember" id="ixv-22782">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,581


$13,172


$13,606


$12,196


$18,983


$19,554


$18,172


$22,036


$23,284


$28,215



Fidelity Freedom 2050 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,849



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033057_LG_ClassMember_11YR" id="ixv-22801">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-264957"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-264958"
      unitRef="usd">11581</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-264959"
      unitRef="usd">13172</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-264960"
      unitRef="usd">13606</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-264961"
      unitRef="usd">12196</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-264962"
      unitRef="usd">18983</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-264963"
      unitRef="usd">19554</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-264964"
      unitRef="usd">18172</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-264965"
      unitRef="usd">22036</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-264966"
      unitRef="usd">23284</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-264967"
      unitRef="usd">28215</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033057_LG_1_AdditionalIndexMember_11YR"
      id="ixv-22850">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2050 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264968"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264969"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264970"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264971"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264972"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264973"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264974"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264975"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264976"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264977"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264978"
      unitRef="usd">27849</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033057_LG_2_AdditionalIndexMember_11YR"
      id="ixv-22899">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-264979"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-264980"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-264981"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-264982"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-264983"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-264984"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-264985"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-264986"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-264987"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-264988"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033057_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-264989"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033057_ClassMember" id="ixv-23000">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

21.18%

8.25%

10.93%


Fidelity Freedom 2050 Composite Index&#x2120;

19.07%


8.27%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-264990"
      unitRef="pure">0.2118</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-264991"
      unitRef="pure">0.0825</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-264992"
      unitRef="pure">0.1093</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-264993"
      unitRef="pure">0.1907</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-264994"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-264995"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-264996"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-264997"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033057_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-264998"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033057_ClassMember" id="ixv-23070">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033057_ClassMember" id="ixv-23082">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033057_ClassMember" id="ixv-23086">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033057_ClassMember" id="ixv-23092">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,014,225,943&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;11,969,686&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000033057_InstantMember"
      decimals="0"
      id="ixv-264999"
      unitRef="usd">2014225943</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000033057_InstantMember"
      decimals="INF"
      id="ixv-265000"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000033057_ClassMember"
      decimals="0"
      id="ixv-265001"
      unitRef="usd">11969686</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000033057_ClassMember"
      decimals="INF"
      id="ixv-265002"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033057_ClassMember" id="ixv-23167">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.0


International Equity Funds

40.7


Bond Funds

3.9


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 3.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033057_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265003"
      unitRef="pure">0.550</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265004"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265005"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265006"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033057_ClassMember" id="ixv-23258">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.3


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.4


&#160;


Fidelity Advisor Series Equity Growth Fund

8.3


&#160;


Fidelity Series International Value Fund

7.6


&#160;


Fidelity Series Overseas Fund

7.5


&#160;


Fidelity Series International Growth Fund

7.5


&#160;


Fidelity Series Opportunistic Insights Fund

7.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.4


&#160;


Fidelity Series Value Discovery Fund

6.4


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

78.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033057_TH_0_Member"
      decimals="INF"
      id="ixv-265007"
      unitRef="pure">0.113</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_1_Member"
      decimals="INF"
      id="ixv-265008"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_2_Member"
      decimals="INF"
      id="ixv-265009"
      unitRef="pure">0.083</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_3_Member"
      decimals="INF"
      id="ixv-265010"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_4_Member"
      decimals="INF"
      id="ixv-265011"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_5_Member"
      decimals="INF"
      id="ixv-265012"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_6_Member"
      decimals="INF"
      id="ixv-265013"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_7_Member"
      decimals="INF"
      id="ixv-265014"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_8_Member"
      decimals="INF"
      id="ixv-265015"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033057_TH_9_Member"
      decimals="INF"
      id="ixv-265016"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033057_ClassMember" id="ixv-23383">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033057_ClassMember" id="ixv-23389">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033057_ClassMember" id="ixv-23393">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033057_ClassMember" id="ixv-23396">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033057_ClassMember" id="ixv-23400">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033057_ClassMember" id="ixv-23411">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033057_ClassMember" id="ixv-23425">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-23481">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033055_ClassMember" id="ixv-23485">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033055_ClassMember" id="ixv-23496">Fidelity Advisor Freedom&#xae; 2050 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033055_ClassMember" id="ixv-23499">Fidelity Advisor Freedom&#xae; 2050 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033055_ClassMember" id="ixv-23503">FFFYX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033055_ClassMember" id="ixv-23522">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2050 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033055_ClassMember" id="ixv-23524">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033055_ClassMember" id="ixv-23529">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033055_ClassMember" id="ixv-23531">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033055_ClassMember" id="ixv-23534">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033055_ClassMember" id="ixv-23537">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033055_ClassMember" id="ixv-23544">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;186&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033055_ClassMember"
      decimals="0"
      id="ixv-265017"
      unitRef="usd">186</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033055_ClassMember"
      decimals="INF"
      id="ixv-265018"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033055_ClassMember" id="ixv-23586">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033055_ClassMember" id="ixv-23620">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,473


$12,918


$13,220


$11,723


$18,064


$18,426


$16,961


$20,364


$21,448


$25,933



Fidelity Freedom 2050 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,849



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033055_LG_ClassMember_11YR" id="ixv-23639">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265019"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265020"
      unitRef="usd">11473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265021"
      unitRef="usd">12918</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265022"
      unitRef="usd">13220</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265023"
      unitRef="usd">11723</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265024"
      unitRef="usd">18064</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265025"
      unitRef="usd">18426</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265026"
      unitRef="usd">16961</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265027"
      unitRef="usd">20364</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265028"
      unitRef="usd">21448</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265029"
      unitRef="usd">25933</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033055_LG_1_AdditionalIndexMember_11YR"
      id="ixv-23688">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2050 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265030"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265031"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265032"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265033"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265034"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265035"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265036"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265037"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265038"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265039"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265040"
      unitRef="usd">27849</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033055_LG_2_AdditionalIndexMember_11YR"
      id="ixv-23737">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265041"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265042"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265043"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265044"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265045"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265046"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265047"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265048"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265049"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265050"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033055_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265051"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033055_ClassMember" id="ixv-23838">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

18.95%

7.17%


10.00%


Class C

19.95%

7.17%

10.00%


Fidelity Freedom 2050 Composite Index&#x2120;

19.07%


8.27%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_ClassMember_1YR"
      decimals="INF"
      id="ixv-265052"
      unitRef="pure">0.1895</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_ClassMember_5YR"
      decimals="INF"
      id="ixv-265053"
      unitRef="pure">0.0717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_ClassMember_10YR"
      decimals="INF"
      id="ixv-265054"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265055"
      unitRef="pure">0.1995</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265056"
      unitRef="pure">0.0717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265057"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265058"
      unitRef="pure">0.1907</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265059"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265060"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265061"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265062"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033055_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265063"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033055_ClassMember" id="ixv-23924">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033055_ClassMember" id="ixv-23936">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033055_ClassMember" id="ixv-23940">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033055_ClassMember" id="ixv-23946">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,014,225,943&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;11,969,686&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000033055_InstantMember"
      decimals="0"
      id="ixv-265064"
      unitRef="usd">2014225943</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000033055_InstantMember"
      decimals="INF"
      id="ixv-265065"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000033055_ClassMember"
      decimals="0"
      id="ixv-265066"
      unitRef="usd">11969686</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000033055_ClassMember"
      decimals="INF"
      id="ixv-265067"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033055_ClassMember" id="ixv-24021">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.0


International Equity Funds

40.7


Bond Funds

3.9


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 3.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033055_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265068"
      unitRef="pure">0.550</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265069"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265070"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265071"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033055_ClassMember" id="ixv-24112">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.3


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.4


&#160;


Fidelity Advisor Series Equity Growth Fund

8.3


&#160;


Fidelity Series International Value Fund

7.6


&#160;


Fidelity Series Overseas Fund

7.5


&#160;


Fidelity Series International Growth Fund

7.5


&#160;


Fidelity Series Opportunistic Insights Fund

7.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.4


&#160;


Fidelity Series Value Discovery Fund

6.4


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

78.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033055_TH_0_Member"
      decimals="INF"
      id="ixv-265072"
      unitRef="pure">0.113</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_1_Member"
      decimals="INF"
      id="ixv-265073"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_2_Member"
      decimals="INF"
      id="ixv-265074"
      unitRef="pure">0.083</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_3_Member"
      decimals="INF"
      id="ixv-265075"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_4_Member"
      decimals="INF"
      id="ixv-265076"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_5_Member"
      decimals="INF"
      id="ixv-265077"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_6_Member"
      decimals="INF"
      id="ixv-265078"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_7_Member"
      decimals="INF"
      id="ixv-265079"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_8_Member"
      decimals="INF"
      id="ixv-265080"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033055_TH_9_Member"
      decimals="INF"
      id="ixv-265081"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033055_ClassMember" id="ixv-24237">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033055_ClassMember" id="ixv-24243">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033055_ClassMember" id="ixv-24247">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033055_ClassMember" id="ixv-24250">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033055_ClassMember" id="ixv-24254">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033055_ClassMember" id="ixv-24265">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033055_ClassMember" id="ixv-24279">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-24335">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033058_ClassMember" id="ixv-24339">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033058_ClassMember" id="ixv-24350">Fidelity Advisor Freedom&#xae; 2050 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033058_ClassMember" id="ixv-24353">Fidelity Advisor Freedom&#xae; 2050 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033058_ClassMember" id="ixv-24357">FFFLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033058_ClassMember" id="ixv-24376">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2050 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033058_ClassMember" id="ixv-24378">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033058_ClassMember" id="ixv-24383">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033058_ClassMember" id="ixv-24385">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033058_ClassMember" id="ixv-24388">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033058_ClassMember" id="ixv-24391">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033058_ClassMember" id="ixv-24398">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033058_ClassMember"
      decimals="0"
      id="ixv-265082"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033058_ClassMember"
      decimals="INF"
      id="ixv-265083"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033058_ClassMember" id="ixv-24440">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033058_ClassMember" id="ixv-24474">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,888


$12,349


$12,730


$11,384


$17,675


$18,163


$16,843


$20,370


$21,455


$25,941



Fidelity Freedom 2050 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,849



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033058_LG_ClassMember_11YR" id="ixv-24495">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265084"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265085"
      unitRef="usd">10888</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265086"
      unitRef="usd">12349</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265087"
      unitRef="usd">12730</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265088"
      unitRef="usd">11384</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265089"
      unitRef="usd">17675</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265090"
      unitRef="usd">18163</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265091"
      unitRef="usd">16843</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265092"
      unitRef="usd">20370</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265093"
      unitRef="usd">21455</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265094"
      unitRef="usd">25941</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033058_LG_1_AdditionalIndexMember_11YR"
      id="ixv-24544">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2050 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265095"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265096"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265097"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265098"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265099"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265100"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265101"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265102"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265103"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265104"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265105"
      unitRef="usd">27849</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033058_LG_2_AdditionalIndexMember_11YR"
      id="ixv-24593">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265106"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265107"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265108"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265109"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265110"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265111"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265112"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265113"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265114"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265115"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033058_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265116"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033058_ClassMember" id="ixv-24694">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

13.96%

6.70%


10.00%


Class A (without 5.75% sales charge)

20.91%

7.98%

10.65%


Fidelity Freedom 2050 Composite Index&#x2120;

19.07%


8.27%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_ClassMember_1YR"
      decimals="INF"
      id="ixv-265117"
      unitRef="pure">0.1396</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_ClassMember_5YR"
      decimals="INF"
      id="ixv-265118"
      unitRef="pure">0.0670</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_ClassMember_10YR"
      decimals="INF"
      id="ixv-265119"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265120"
      unitRef="pure">0.2091</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265121"
      unitRef="pure">0.0798</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265122"
      unitRef="pure">0.1065</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265123"
      unitRef="pure">0.1907</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265124"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265125"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265126"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265127"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033058_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265128"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033058_ClassMember" id="ixv-24779">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033058_ClassMember" id="ixv-24791">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033058_ClassMember" id="ixv-24795">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033058_ClassMember" id="ixv-24801">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,014,225,943&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;11,969,686&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000033058_InstantMember"
      decimals="0"
      id="ixv-265129"
      unitRef="usd">2014225943</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000033058_InstantMember"
      decimals="INF"
      id="ixv-265130"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000033058_ClassMember"
      decimals="0"
      id="ixv-265131"
      unitRef="usd">11969686</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000033058_ClassMember"
      decimals="INF"
      id="ixv-265132"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033058_ClassMember" id="ixv-24876">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

55.0


International Equity Funds

40.7


Bond Funds

3.9


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 55.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 3.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033058_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265133"
      unitRef="pure">0.550</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265134"
      unitRef="pure">0.407</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265135"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265136"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033058_ClassMember" id="ixv-24967">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.3


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.4


&#160;


Fidelity Advisor Series Equity Growth Fund

8.3


&#160;


Fidelity Series International Value Fund

7.6


&#160;


Fidelity Series Overseas Fund

7.5


&#160;


Fidelity Series International Growth Fund

7.5


&#160;


Fidelity Series Opportunistic Insights Fund

7.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.4


&#160;


Fidelity Series Value Discovery Fund

6.4


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

78.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033058_TH_0_Member"
      decimals="INF"
      id="ixv-265137"
      unitRef="pure">0.113</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_1_Member"
      decimals="INF"
      id="ixv-265138"
      unitRef="pure">0.104</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_2_Member"
      decimals="INF"
      id="ixv-265139"
      unitRef="pure">0.083</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_3_Member"
      decimals="INF"
      id="ixv-265140"
      unitRef="pure">0.076</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_4_Member"
      decimals="INF"
      id="ixv-265141"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_5_Member"
      decimals="INF"
      id="ixv-265142"
      unitRef="pure">0.075</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_6_Member"
      decimals="INF"
      id="ixv-265143"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_7_Member"
      decimals="INF"
      id="ixv-265144"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_8_Member"
      decimals="INF"
      id="ixv-265145"
      unitRef="pure">0.064</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033058_TH_9_Member"
      decimals="INF"
      id="ixv-265146"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033058_ClassMember" id="ixv-25092">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033058_ClassMember" id="ixv-25098">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033058_ClassMember" id="ixv-25102">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033058_ClassMember" id="ixv-25105">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033058_ClassMember" id="ixv-25109">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033058_ClassMember" id="ixv-25120">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033058_ClassMember" id="ixv-25134">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-25190">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182223_ClassMember" id="ixv-25194">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182223_ClassMember" id="ixv-25205">Fidelity Advisor Freedom&#xae; 2045 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182223_ClassMember" id="ixv-25208">Fidelity Advisor Freedom&#xae; 2045 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182223_ClassMember" id="ixv-25212">FCGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182223_ClassMember" id="ixv-25231">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2045 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182223_ClassMember" id="ixv-25233">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182223_ClassMember" id="ixv-25238">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182223_ClassMember" id="ixv-25240">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182223_ClassMember" id="ixv-25243">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182223_ClassMember" id="ixv-25246">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182223_ClassMember" id="ixv-25253">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182223_ClassMember"
      decimals="0"
      id="ixv-265147"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182223_ClassMember"
      decimals="INF"
      id="ixv-265148"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182223_ClassMember" id="ixv-25295">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182223_ClassMember" id="ixv-25329">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,915


$11,306


$10,150


$15,847


$16,373


$15,249


$18,555


$19,650


$23,887



Fidelity Freedom 2045 Composite Index&#x2120;


$10,000

$10,921


$11,461


$10,454


$15,681


$16,524


$15,310


$18,394


$19,598


$23,345



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182223_LG_ClassMember_10YR" id="ixv-25348">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265149"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265150"
      unitRef="usd">10915</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265151"
      unitRef="usd">11306</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265152"
      unitRef="usd">10150</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265153"
      unitRef="usd">15847</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265154"
      unitRef="usd">16373</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265155"
      unitRef="usd">15249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265156"
      unitRef="usd">18555</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265157"
      unitRef="usd">19650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265158"
      unitRef="usd">23887</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182223_LG_1_AdditionalIndexMember_10YR"
      id="ixv-25393">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2045 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265159"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265160"
      unitRef="usd">10921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265161"
      unitRef="usd">11461</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265162"
      unitRef="usd">10454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265163"
      unitRef="usd">15681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265164"
      unitRef="usd">16524</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265165"
      unitRef="usd">15310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265166"
      unitRef="usd">18394</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265167"
      unitRef="usd">19598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265168"
      unitRef="usd">23345</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182223_LG_2_AdditionalIndexMember_10YR"
      id="ixv-25438">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265169"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265170"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265171"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265172"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265173"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265174"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265175"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265176"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265177"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182223_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265178"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182223_ClassMember" id="ixv-25532">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

21.56%

8.55%

10.37%


Fidelity Freedom 2045 Composite Index&#x2120;

19.12%


8.28%


10.09%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265179"
      unitRef="pure">0.2156</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265180"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-265181"
      unitRef="pure">0.1037</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265182"
      unitRef="pure">0.1912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265183"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-265184"
      unitRef="pure">0.1009</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265185"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265186"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182223_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-265187"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182223_Perf_2017-06-06_ClassMember"
      id="ixv-25601">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182223_ClassMember" id="ixv-25611">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182223_ClassMember" id="ixv-25623">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182223_ClassMember" id="ixv-25627">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182223_ClassMember" id="ixv-25633">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,256,608,802&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,330,281&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182223_InstantMember"
      decimals="0"
      id="ixv-265188"
      unitRef="usd">2256608802</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182223_InstantMember"
      decimals="INF"
      id="ixv-265189"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182223_ClassMember"
      decimals="0"
      id="ixv-265190"
      unitRef="usd">13330281</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182223_ClassMember"
      decimals="INF"
      id="ixv-265191"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182223_ClassMember" id="ixv-25708">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

54.2


International Equity Funds

40.2


Bond Funds

5.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 54.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182223_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265192"
      unitRef="pure">0.542</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265193"
      unitRef="pure">0.402</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265194"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265195"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182223_ClassMember" id="ixv-25799">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.3


&#160;


Fidelity Advisor Series Equity Growth Fund

8.1


&#160;


Fidelity Series International Value Fund

7.4


&#160;


Fidelity Series Overseas Fund

7.4


&#160;


Fidelity Series International Growth Fund

7.4


&#160;


Fidelity Series Opportunistic Insights Fund

7.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.3


&#160;


Fidelity Series Value Discovery Fund

6.3


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

77.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182223_TH_0_Member"
      decimals="INF"
      id="ixv-265196"
      unitRef="pure">0.111</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_1_Member"
      decimals="INF"
      id="ixv-265197"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_2_Member"
      decimals="INF"
      id="ixv-265198"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_3_Member"
      decimals="INF"
      id="ixv-265199"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_4_Member"
      decimals="INF"
      id="ixv-265200"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_5_Member"
      decimals="INF"
      id="ixv-265201"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_6_Member"
      decimals="INF"
      id="ixv-265202"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_7_Member"
      decimals="INF"
      id="ixv-265203"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_8_Member"
      decimals="INF"
      id="ixv-265204"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182223_TH_9_Member"
      decimals="INF"
      id="ixv-265205"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182223_ClassMember" id="ixv-25924">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182223_ClassMember" id="ixv-25930">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182223_ClassMember" id="ixv-25934">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182223_ClassMember" id="ixv-25937">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182223_ClassMember" id="ixv-25941">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182223_ClassMember" id="ixv-25952">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-26010">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205065_ClassMember" id="ixv-26014">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205065_ClassMember" id="ixv-26025">Fidelity Advisor Freedom&#xae; 2045 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205065_ClassMember" id="ixv-26028">Fidelity Advisor Freedom&#xae; 2045 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205065_ClassMember" id="ixv-26032">FIJQX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205065_ClassMember" id="ixv-26051">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2045 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205065_ClassMember" id="ixv-26053">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205065_ClassMember" id="ixv-26058">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205065_ClassMember" id="ixv-26060">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205065_ClassMember" id="ixv-26063">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205065_ClassMember" id="ixv-26066">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205065_ClassMember" id="ixv-26073">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.64&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205065_ClassMember"
      decimals="0"
      id="ixv-265206"
      unitRef="usd">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205065_ClassMember"
      decimals="INF"
      id="ixv-265207"
      unitRef="pure">0.0064</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205065_ClassMember" id="ixv-26115">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205065_ClassMember" id="ixv-26149">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,867


$8,848


$13,790


$14,220


$13,230


$16,072


$16,982


$20,598



Fidelity Freedom 2045 Composite Index&#x2120;


$10,000

$9,883


$9,014


$13,522


$14,248


$13,202


$15,861


$16,899


$20,130



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205065_LG_ClassMember_9YR" id="ixv-26168">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265208"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265209"
      unitRef="usd">9867</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265210"
      unitRef="usd">8848</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265211"
      unitRef="usd">13790</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265212"
      unitRef="usd">14220</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265213"
      unitRef="usd">13230</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265214"
      unitRef="usd">16072</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265215"
      unitRef="usd">16982</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265216"
      unitRef="usd">20598</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205065_LG_1_AdditionalIndexMember_9YR"
      id="ixv-26209">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2045 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265217"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265218"
      unitRef="usd">9883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265219"
      unitRef="usd">9014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265220"
      unitRef="usd">13522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265221"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265222"
      unitRef="usd">13202</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265223"
      unitRef="usd">15861</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265224"
      unitRef="usd">16899</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265225"
      unitRef="usd">20130</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205065_LG_2_AdditionalIndexMember_9YR"
      id="ixv-26250">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265226"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265227"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265228"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265229"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265230"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265231"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265232"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265233"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205065_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265234"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205065_ClassMember" id="ixv-26337">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

21.29%

8.36%

10.12%


Fidelity Freedom 2045 Composite Index&#x2120;

19.12%


8.28%


9.78%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265235"
      unitRef="pure">0.2129</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265236"
      unitRef="pure">0.0836</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-265237"
      unitRef="pure">0.1012</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265238"
      unitRef="pure">0.1912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265239"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-265240"
      unitRef="pure">0.0978</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265241"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265242"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205065_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-265243"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205065_Perf_2018-10-02_ClassMember"
      id="ixv-26406">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205065_ClassMember" id="ixv-26416">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205065_ClassMember" id="ixv-26428">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205065_ClassMember" id="ixv-26432">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205065_ClassMember" id="ixv-26438">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,256,608,802&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,330,281&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205065_InstantMember"
      decimals="0"
      id="ixv-265244"
      unitRef="usd">2256608802</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205065_InstantMember"
      decimals="INF"
      id="ixv-265245"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205065_ClassMember"
      decimals="0"
      id="ixv-265246"
      unitRef="usd">13330281</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205065_ClassMember"
      decimals="INF"
      id="ixv-265247"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205065_ClassMember" id="ixv-26513">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

54.2


International Equity Funds

40.2


Bond Funds

5.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 54.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205065_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265248"
      unitRef="pure">0.542</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265249"
      unitRef="pure">0.402</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265250"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265251"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205065_ClassMember" id="ixv-26604">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.3


&#160;


Fidelity Advisor Series Equity Growth Fund

8.1


&#160;


Fidelity Series International Value Fund

7.4


&#160;


Fidelity Series Overseas Fund

7.4


&#160;


Fidelity Series International Growth Fund

7.4


&#160;


Fidelity Series Opportunistic Insights Fund

7.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.3


&#160;


Fidelity Series Value Discovery Fund

6.3


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

77.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205065_TH_0_Member"
      decimals="INF"
      id="ixv-265252"
      unitRef="pure">0.111</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_1_Member"
      decimals="INF"
      id="ixv-265253"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_2_Member"
      decimals="INF"
      id="ixv-265254"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_3_Member"
      decimals="INF"
      id="ixv-265255"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_4_Member"
      decimals="INF"
      id="ixv-265256"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_5_Member"
      decimals="INF"
      id="ixv-265257"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_6_Member"
      decimals="INF"
      id="ixv-265258"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_7_Member"
      decimals="INF"
      id="ixv-265259"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_8_Member"
      decimals="INF"
      id="ixv-265260"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205065_TH_9_Member"
      decimals="INF"
      id="ixv-265261"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205065_ClassMember" id="ixv-26729">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205065_ClassMember" id="ixv-26735">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205065_ClassMember" id="ixv-26739">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205065_ClassMember" id="ixv-26742">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205065_ClassMember" id="ixv-26746">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205065_ClassMember" id="ixv-26757">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-26815">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033053_ClassMember" id="ixv-26819">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033053_ClassMember" id="ixv-26830">Fidelity Advisor Freedom&#xae; 2045 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033053_ClassMember" id="ixv-26833">Fidelity Advisor Freedom&#xae; 2045 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033053_ClassMember" id="ixv-26837">FFFTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033053_ClassMember" id="ixv-26856">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2045 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033053_ClassMember" id="ixv-26858">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033053_ClassMember" id="ixv-26863">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033053_ClassMember" id="ixv-26865">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033053_ClassMember" id="ixv-26868">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033053_ClassMember" id="ixv-26871">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033053_ClassMember" id="ixv-26878">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;131&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033053_ClassMember"
      decimals="0"
      id="ixv-265262"
      unitRef="usd">131</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033053_ClassMember"
      decimals="INF"
      id="ixv-265263"
      unitRef="pure">0.0119</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033053_ClassMember" id="ixv-26920">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033053_ClassMember" id="ixv-26954">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$11,126


$12,586


$12,938


$11,540


$17,869


$18,322


$16,937


$20,439


$21,482


$25,920



Fidelity Freedom 2045 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,861



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033053_LG_ClassMember_11YR" id="ixv-26975">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265264"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265265"
      unitRef="usd">11126</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265266"
      unitRef="usd">12586</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265267"
      unitRef="usd">12938</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265268"
      unitRef="usd">11540</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265269"
      unitRef="usd">17869</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265270"
      unitRef="usd">18322</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265271"
      unitRef="usd">16937</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265272"
      unitRef="usd">20439</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265273"
      unitRef="usd">21482</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265274"
      unitRef="usd">25920</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033053_LG_1_AdditionalIndexMember_11YR"
      id="ixv-27024">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2045 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265275"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265276"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265277"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265278"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265279"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265280"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265281"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265282"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265283"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265284"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265285"
      unitRef="usd">27861</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033053_LG_2_AdditionalIndexMember_11YR"
      id="ixv-27073">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265286"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265287"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265288"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265289"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265290"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265291"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265292"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265293"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265294"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265295"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033053_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265296"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033053_ClassMember" id="ixv-27174">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

16.44%

6.96%


9.99%


Class M (without 3.50% sales charge)

20.66%

7.72%

10.39%


Fidelity Freedom 2045 Composite Index&#x2120;

19.12%


8.28%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_ClassMember_1YR"
      decimals="INF"
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    <oef:AvgAnnlRtrPct
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      id="ixv-265298"
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    <oef:AvgAnnlRtrPct
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      id="ixv-265299"
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      contextRef="C000033053_NoLoadClassMember_1YR"
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      id="ixv-265300"
      unitRef="pure">0.2066</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265301"
      unitRef="pure">0.0772</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265302"
      unitRef="pure">0.1039</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265303"
      unitRef="pure">0.1912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_0_AdditionalIndexMember_5YR"
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      id="ixv-265304"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265305"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265306"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265307"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033053_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265308"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033053_ClassMember" id="ixv-27259">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033053_ClassMember" id="ixv-27271">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033053_ClassMember" id="ixv-27275">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033053_ClassMember" id="ixv-27281">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,256,608,802&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,330,281&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-265309"
      unitRef="usd">2256608802</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="ixv-265310"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      unitRef="usd">13330281</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      id="ixv-265312"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033053_ClassMember" id="ixv-27356">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

54.2


International Equity Funds

40.2


Bond Funds

5.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 54.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-265313"
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    <oef:PctOfNav
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      decimals="INF"
      id="ixv-265314"
      unitRef="pure">0.402</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265315"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265316"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033053_ClassMember" id="ixv-27447">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.3


&#160;


Fidelity Advisor Series Equity Growth Fund

8.1


&#160;


Fidelity Series International Value Fund

7.4


&#160;


Fidelity Series Overseas Fund

7.4


&#160;


Fidelity Series International Growth Fund

7.4


&#160;


Fidelity Series Opportunistic Insights Fund

7.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.3


&#160;


Fidelity Series Value Discovery Fund

6.3


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

77.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033053_TH_0_Member"
      decimals="INF"
      id="ixv-265317"
      unitRef="pure">0.111</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_1_Member"
      decimals="INF"
      id="ixv-265318"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_2_Member"
      decimals="INF"
      id="ixv-265319"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_3_Member"
      decimals="INF"
      id="ixv-265320"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_4_Member"
      decimals="INF"
      id="ixv-265321"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_5_Member"
      decimals="INF"
      id="ixv-265322"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_6_Member"
      decimals="INF"
      id="ixv-265323"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_7_Member"
      decimals="INF"
      id="ixv-265324"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_8_Member"
      decimals="INF"
      id="ixv-265325"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033053_TH_9_Member"
      decimals="INF"
      id="ixv-265326"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033053_ClassMember" id="ixv-27572">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033053_ClassMember" id="ixv-27578">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033053_ClassMember" id="ixv-27582">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033053_ClassMember" id="ixv-27585">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033053_ClassMember" id="ixv-27589">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033053_ClassMember" id="ixv-27600">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033053_ClassMember" id="ixv-27614">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-27670">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033054_ClassMember" id="ixv-27674">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033054_ClassMember" id="ixv-27685">Fidelity Advisor Freedom&#xae; 2045 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033054_ClassMember" id="ixv-27688">Fidelity Advisor Freedom&#xae; 2045 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033054_ClassMember" id="ixv-27692">FFFIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033054_ClassMember" id="ixv-27711">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2045 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033054_ClassMember" id="ixv-27713">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033054_ClassMember" id="ixv-27718">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033054_ClassMember" id="ixv-27720">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033054_ClassMember" id="ixv-27723">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033054_ClassMember" id="ixv-27726">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033054_ClassMember" id="ixv-27733">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033054_ClassMember"
      decimals="0"
      id="ixv-265327"
      unitRef="usd">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033054_ClassMember"
      decimals="INF"
      id="ixv-265328"
      unitRef="pure">0.0069</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033054_ClassMember" id="ixv-27775">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033054_ClassMember" id="ixv-27809">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,583


$13,178


$13,619


$12,194


$18,995


$19,568


$18,181


$22,057


$23,294


$28,234



Fidelity Freedom 2045 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,861



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033054_LG_ClassMember_11YR" id="ixv-27828">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265329"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265330"
      unitRef="usd">11583</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265331"
      unitRef="usd">13178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265332"
      unitRef="usd">13619</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265333"
      unitRef="usd">12194</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265334"
      unitRef="usd">18995</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265335"
      unitRef="usd">19568</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265336"
      unitRef="usd">18181</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265337"
      unitRef="usd">22057</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265338"
      unitRef="usd">23294</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265339"
      unitRef="usd">28234</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033054_LG_1_AdditionalIndexMember_11YR"
      id="ixv-27877">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2045 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265340"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265341"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265342"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265343"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265344"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265345"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265346"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265347"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265348"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265349"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265350"
      unitRef="usd">27861</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033054_LG_2_AdditionalIndexMember_11YR"
      id="ixv-27926">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265351"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265352"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265353"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265354"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265355"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265356"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265357"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265358"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265359"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265360"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033054_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265361"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033054_ClassMember" id="ixv-28027">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

21.21%

8.25%

10.94%


Fidelity Freedom 2045 Composite Index&#x2120;

19.12%


8.28%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265362"
      unitRef="pure">0.2121</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265363"
      unitRef="pure">0.0825</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265364"
      unitRef="pure">0.1094</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265365"
      unitRef="pure">0.1912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265366"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265367"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265368"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265369"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033054_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265370"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033054_ClassMember" id="ixv-28097">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033054_ClassMember" id="ixv-28109">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033054_ClassMember" id="ixv-28113">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033054_ClassMember" id="ixv-28119">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,256,608,802&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,330,281&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000033054_InstantMember"
      decimals="0"
      id="ixv-265371"
      unitRef="usd">2256608802</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000033054_InstantMember"
      decimals="INF"
      id="ixv-265372"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000033054_ClassMember"
      decimals="0"
      id="ixv-265373"
      unitRef="usd">13330281</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000033054_ClassMember"
      decimals="INF"
      id="ixv-265374"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033054_ClassMember" id="ixv-28194">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

54.2


International Equity Funds

40.2


Bond Funds

5.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 54.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033054_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265375"
      unitRef="pure">0.542</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265376"
      unitRef="pure">0.402</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265377"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265378"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033054_ClassMember" id="ixv-28285">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.3


&#160;


Fidelity Advisor Series Equity Growth Fund

8.1


&#160;


Fidelity Series International Value Fund

7.4


&#160;


Fidelity Series Overseas Fund

7.4


&#160;


Fidelity Series International Growth Fund

7.4


&#160;


Fidelity Series Opportunistic Insights Fund

7.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.3


&#160;


Fidelity Series Value Discovery Fund

6.3


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

77.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033054_TH_0_Member"
      decimals="INF"
      id="ixv-265379"
      unitRef="pure">0.111</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_1_Member"
      decimals="INF"
      id="ixv-265380"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_2_Member"
      decimals="INF"
      id="ixv-265381"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_3_Member"
      decimals="INF"
      id="ixv-265382"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_4_Member"
      decimals="INF"
      id="ixv-265383"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_5_Member"
      decimals="INF"
      id="ixv-265384"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_6_Member"
      decimals="INF"
      id="ixv-265385"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_7_Member"
      decimals="INF"
      id="ixv-265386"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_8_Member"
      decimals="INF"
      id="ixv-265387"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033054_TH_9_Member"
      decimals="INF"
      id="ixv-265388"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033054_ClassMember" id="ixv-28410">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033054_ClassMember" id="ixv-28416">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033054_ClassMember" id="ixv-28420">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033054_ClassMember" id="ixv-28423">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033054_ClassMember" id="ixv-28427">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033054_ClassMember" id="ixv-28438">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033054_ClassMember" id="ixv-28452">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-28508">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033052_ClassMember" id="ixv-28512">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033052_ClassMember" id="ixv-28523">Fidelity Advisor Freedom&#xae; 2045 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033052_ClassMember" id="ixv-28526">Fidelity Advisor Freedom&#xae; 2045 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033052_ClassMember" id="ixv-28530">FFFJX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033052_ClassMember" id="ixv-28549">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2045 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033052_ClassMember" id="ixv-28551">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033052_ClassMember" id="ixv-28556">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033052_ClassMember" id="ixv-28558">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033052_ClassMember" id="ixv-28561">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033052_ClassMember" id="ixv-28564">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033052_ClassMember" id="ixv-28571">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;186&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033052_ClassMember"
      decimals="0"
      id="ixv-265389"
      unitRef="usd">186</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033052_ClassMember"
      decimals="INF"
      id="ixv-265390"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033052_ClassMember" id="ixv-28613">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033052_ClassMember" id="ixv-28647">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,471


$12,915


$13,211


$11,715


$18,069


$18,423


$16,950


$20,347


$21,439


$25,929



Fidelity Freedom 2045 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,861



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033052_LG_ClassMember_11YR" id="ixv-28666">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265391"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265392"
      unitRef="usd">11471</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265393"
      unitRef="usd">12915</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265394"
      unitRef="usd">13211</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265395"
      unitRef="usd">11715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265396"
      unitRef="usd">18069</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265397"
      unitRef="usd">18423</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265398"
      unitRef="usd">16950</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265399"
      unitRef="usd">20347</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265400"
      unitRef="usd">21439</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265401"
      unitRef="usd">25929</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033052_LG_1_AdditionalIndexMember_11YR"
      id="ixv-28715">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2045 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265402"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265403"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265404"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265405"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265406"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265407"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265408"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265409"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265410"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265411"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265412"
      unitRef="usd">27861</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033052_LG_2_AdditionalIndexMember_11YR"
      id="ixv-28764">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265413"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265414"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265415"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265416"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265417"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265418"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265419"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265420"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265421"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265422"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033052_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265423"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033052_ClassMember" id="ixv-28865">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

19.06%

7.17%


10.00%


Class C

20.06%

7.17%

10.00%


Fidelity Freedom 2045 Composite Index&#x2120;

19.12%


8.28%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_ClassMember_1YR"
      decimals="INF"
      id="ixv-265424"
      unitRef="pure">0.1906</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_ClassMember_5YR"
      decimals="INF"
      id="ixv-265425"
      unitRef="pure">0.0717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_ClassMember_10YR"
      decimals="INF"
      id="ixv-265426"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265427"
      unitRef="pure">0.2006</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265428"
      unitRef="pure">0.0717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265429"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265430"
      unitRef="pure">0.1912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265431"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265432"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265433"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265434"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033052_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265435"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033052_ClassMember" id="ixv-28951">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033052_ClassMember" id="ixv-28963">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033052_ClassMember" id="ixv-28967">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033052_ClassMember" id="ixv-28973">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,256,608,802&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,330,281&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000033052_InstantMember"
      decimals="0"
      id="ixv-265436"
      unitRef="usd">2256608802</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000033052_InstantMember"
      decimals="INF"
      id="ixv-265437"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000033052_ClassMember"
      decimals="0"
      id="ixv-265438"
      unitRef="usd">13330281</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-265439"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033052_ClassMember" id="ixv-29048">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

54.2


International Equity Funds

40.2


Bond Funds

5.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 54.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033052_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265440"
      unitRef="pure">0.542</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265441"
      unitRef="pure">0.402</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265442"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265443"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033052_ClassMember" id="ixv-29139">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.3


&#160;


Fidelity Advisor Series Equity Growth Fund

8.1


&#160;


Fidelity Series International Value Fund

7.4


&#160;


Fidelity Series Overseas Fund

7.4


&#160;


Fidelity Series International Growth Fund

7.4


&#160;


Fidelity Series Opportunistic Insights Fund

7.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.3


&#160;


Fidelity Series Value Discovery Fund

6.3


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

77.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033052_TH_0_Member"
      decimals="INF"
      id="ixv-265444"
      unitRef="pure">0.111</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_1_Member"
      decimals="INF"
      id="ixv-265445"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_2_Member"
      decimals="INF"
      id="ixv-265446"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_3_Member"
      decimals="INF"
      id="ixv-265447"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_4_Member"
      decimals="INF"
      id="ixv-265448"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_5_Member"
      decimals="INF"
      id="ixv-265449"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_6_Member"
      decimals="INF"
      id="ixv-265450"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_7_Member"
      decimals="INF"
      id="ixv-265451"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_8_Member"
      decimals="INF"
      id="ixv-265452"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033052_TH_9_Member"
      decimals="INF"
      id="ixv-265453"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033052_ClassMember" id="ixv-29264">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033052_ClassMember" id="ixv-29270">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033052_ClassMember" id="ixv-29274">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033052_ClassMember" id="ixv-29277">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033052_ClassMember" id="ixv-29281">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033052_ClassMember" id="ixv-29292">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033052_ClassMember" id="ixv-29306">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-29362">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000033050_ClassMember" id="ixv-29366">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000033050_ClassMember" id="ixv-29377">Fidelity Advisor Freedom&#xae; 2045 Fund</oef:FundName>
    <oef:ClassName contextRef="C000033050_ClassMember" id="ixv-29380">Fidelity Advisor Freedom&#xae; 2045 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000033050_ClassMember" id="ixv-29384">FFFZX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000033050_ClassMember" id="ixv-29403">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2045 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000033050_ClassMember" id="ixv-29405">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000033050_ClassMember" id="ixv-29410">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000033050_ClassMember" id="ixv-29412">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000033050_ClassMember" id="ixv-29415">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000033050_ClassMember" id="ixv-29418">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000033050_ClassMember" id="ixv-29425">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;104&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000033050_ClassMember"
      decimals="0"
      id="ixv-265454"
      unitRef="usd">104</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000033050_ClassMember"
      decimals="INF"
      id="ixv-265455"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000033050_ClassMember" id="ixv-29467">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000033050_ClassMember" id="ixv-29501">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,886


$12,349


$12,735


$11,374


$17,675


$18,164


$16,839


$20,364


$21,456


$25,949



Fidelity Freedom 2045 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,720


$18,271


$21,951


$23,389


$27,861



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000033050_LG_ClassMember_11YR" id="ixv-29522">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265456"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265457"
      unitRef="usd">10886</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265458"
      unitRef="usd">12349</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265459"
      unitRef="usd">12735</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265460"
      unitRef="usd">11374</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265461"
      unitRef="usd">17675</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265462"
      unitRef="usd">18164</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265463"
      unitRef="usd">16839</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265464"
      unitRef="usd">20364</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265465"
      unitRef="usd">21456</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265466"
      unitRef="usd">25949</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033050_LG_1_AdditionalIndexMember_11YR"
      id="ixv-29571">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2045 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265467"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265468"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265469"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265470"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265471"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265472"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265473"
      unitRef="usd">19720</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265474"
      unitRef="usd">18271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265475"
      unitRef="usd">21951</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265476"
      unitRef="usd">23389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265477"
      unitRef="usd">27861</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000033050_LG_2_AdditionalIndexMember_11YR"
      id="ixv-29620">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265478"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265479"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265480"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265481"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265482"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265483"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265484"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265485"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265486"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265487"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000033050_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265488"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000033050_ClassMember" id="ixv-29721">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

13.99%

6.71%


10.00%


Class A (without 5.75% sales charge)

20.94%

7.98%

10.66%


Fidelity Freedom 2045 Composite Index&#x2120;

19.12%


8.28%


10.79%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_ClassMember_1YR"
      decimals="INF"
      id="ixv-265489"
      unitRef="pure">0.1399</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_ClassMember_5YR"
      decimals="INF"
      id="ixv-265490"
      unitRef="pure">0.0671</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_ClassMember_10YR"
      decimals="INF"
      id="ixv-265491"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265492"
      unitRef="pure">0.2094</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265493"
      unitRef="pure">0.0798</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265494"
      unitRef="pure">0.1066</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265495"
      unitRef="pure">0.1912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265496"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265497"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265498"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265499"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000033050_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265500"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000033050_ClassMember" id="ixv-29806">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000033050_ClassMember" id="ixv-29818">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000033050_ClassMember" id="ixv-29822">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000033050_ClassMember" id="ixv-29828">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,256,608,802&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;44&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;13,330,281&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;16&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000033050_InstantMember"
      decimals="0"
      id="ixv-265501"
      unitRef="usd">2256608802</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000033050_InstantMember"
      decimals="INF"
      id="ixv-265502"
      unitRef="holding">44</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000033050_ClassMember"
      decimals="0"
      id="ixv-265503"
      unitRef="usd">13330281</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000033050_ClassMember"
      decimals="INF"
      id="ixv-265504"
      unitRef="pure">0.16</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000033050_ClassMember" id="ixv-29903">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

54.2


International Equity Funds

40.2


Bond Funds

5.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 54.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 40.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033050_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265505"
      unitRef="pure">0.542</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265506"
      unitRef="pure">0.402</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265507"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265508"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000033050_ClassMember" id="ixv-29994">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

11.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.3


&#160;


Fidelity Advisor Series Equity Growth Fund

8.1


&#160;


Fidelity Series International Value Fund

7.4


&#160;


Fidelity Series Overseas Fund

7.4


&#160;


Fidelity Series International Growth Fund

7.4


&#160;


Fidelity Series Opportunistic Insights Fund

7.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.3


&#160;


Fidelity Series Value Discovery Fund

6.3


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.8


&#160;


&#160;

77.1

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000033050_TH_0_Member"
      decimals="INF"
      id="ixv-265509"
      unitRef="pure">0.111</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_1_Member"
      decimals="INF"
      id="ixv-265510"
      unitRef="pure">0.103</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_2_Member"
      decimals="INF"
      id="ixv-265511"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_3_Member"
      decimals="INF"
      id="ixv-265512"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_4_Member"
      decimals="INF"
      id="ixv-265513"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_5_Member"
      decimals="INF"
      id="ixv-265514"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_6_Member"
      decimals="INF"
      id="ixv-265515"
      unitRef="pure">0.070</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_7_Member"
      decimals="INF"
      id="ixv-265516"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_8_Member"
      decimals="INF"
      id="ixv-265517"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000033050_TH_9_Member"
      decimals="INF"
      id="ixv-265518"
      unitRef="pure">0.058</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000033050_ClassMember" id="ixv-30119">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000033050_ClassMember" id="ixv-30125">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000033050_ClassMember" id="ixv-30129">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000033050_ClassMember" id="ixv-30132">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000033050_ClassMember" id="ixv-30136">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000033050_ClassMember" id="ixv-30147">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000033050_ClassMember" id="ixv-30161">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-30217">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182219_ClassMember" id="ixv-30221">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182219_ClassMember" id="ixv-30232">Fidelity Advisor Freedom&#xae; 2040 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182219_ClassMember" id="ixv-30235">Fidelity Advisor Freedom&#xae; 2040 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182219_ClassMember" id="ixv-30239">FKGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182219_ClassMember" id="ixv-30258">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2040 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182219_ClassMember" id="ixv-30260">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182219_ClassMember" id="ixv-30265">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182219_ClassMember" id="ixv-30267">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182219_ClassMember" id="ixv-30270">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182219_ClassMember" id="ixv-30273">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182219_ClassMember" id="ixv-30280">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;47&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.43&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182219_ClassMember"
      decimals="0"
      id="ixv-265519"
      unitRef="usd">47</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182219_ClassMember"
      decimals="INF"
      id="ixv-265520"
      unitRef="pure">0.0043</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182219_ClassMember" id="ixv-30322">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182219_ClassMember" id="ixv-30356">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,912


$11,309


$10,151


$15,850


$16,375


$15,246


$18,389


$19,469


$23,348



Fidelity Freedom 2040 Composite Index&#x2120;


$10,000

$10,921


$11,461


$10,454


$15,681


$16,520


$15,300


$18,242


$19,421


$22,860



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182219_LG_ClassMember_10YR" id="ixv-30375">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265521"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265522"
      unitRef="usd">10912</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265523"
      unitRef="usd">11309</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265524"
      unitRef="usd">10151</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265525"
      unitRef="usd">15850</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265526"
      unitRef="usd">16375</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265527"
      unitRef="usd">15246</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265528"
      unitRef="usd">18389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265529"
      unitRef="usd">19469</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265530"
      unitRef="usd">23348</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182219_LG_1_AdditionalIndexMember_10YR"
      id="ixv-30420">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2040 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265531"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265532"
      unitRef="usd">10921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265533"
      unitRef="usd">11461</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265534"
      unitRef="usd">10454</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265535"
      unitRef="usd">15681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265536"
      unitRef="usd">16520</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265537"
      unitRef="usd">15300</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265538"
      unitRef="usd">18242</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265539"
      unitRef="usd">19421</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265540"
      unitRef="usd">22860</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182219_LG_2_AdditionalIndexMember_10YR"
      id="ixv-30465">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265541"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265542"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265543"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265544"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265545"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265546"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265547"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265548"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265549"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182219_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265550"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182219_ClassMember" id="ixv-30559">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

19.92%

8.06%

10.09%


Fidelity Freedom 2040 Composite Index&#x2120;

17.71%


7.83%


9.83%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265551"
      unitRef="pure">0.1992</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265552"
      unitRef="pure">0.0806</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-265553"
      unitRef="pure">0.1009</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265554"
      unitRef="pure">0.1771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265555"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-265556"
      unitRef="pure">0.0983</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265557"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265558"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182219_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-265559"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182219_Perf_2017-06-06_ClassMember"
      id="ixv-30628">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182219_ClassMember" id="ixv-30638">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182219_ClassMember" id="ixv-30650">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182219_ClassMember" id="ixv-30654">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182219_ClassMember" id="ixv-30660">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,969,331,790&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,471,178&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182219_InstantMember"
      decimals="0"
      id="ixv-265560"
      unitRef="usd">2969331790</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182219_InstantMember"
      decimals="INF"
      id="ixv-265561"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182219_ClassMember"
      decimals="0"
      id="ixv-265562"
      unitRef="usd">17471178</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182219_ClassMember"
      decimals="INF"
      id="ixv-265563"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182219_ClassMember" id="ixv-30735">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

48.6


International Equity Funds

36.7


Bond Funds

14.3


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 48.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 36.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 14.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182219_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265564"
      unitRef="pure">0.486</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265565"
      unitRef="pure">0.367</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265566"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265567"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182219_ClassMember" id="ixv-30826">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

9.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

9.3


&#160;


Fidelity Advisor Series Equity Growth Fund

7.4


&#160;


Fidelity Series Overseas Fund

6.8


&#160;


Fidelity Series International Value Fund

6.8


&#160;


Fidelity Series International Growth Fund

6.8


&#160;


Fidelity Series Opportunistic Insights Fund

6.2


&#160;


Fidelity Series Investment Grade Bond Fund

6.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

5.6


&#160;


Fidelity Series Value Discovery Fund

5.6


&#160;


&#160;

70.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182219_TH_0_Member"
      decimals="INF"
      id="ixv-265568"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_1_Member"
      decimals="INF"
      id="ixv-265569"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_2_Member"
      decimals="INF"
      id="ixv-265570"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_3_Member"
      decimals="INF"
      id="ixv-265571"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_4_Member"
      decimals="INF"
      id="ixv-265572"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_5_Member"
      decimals="INF"
      id="ixv-265573"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_6_Member"
      decimals="INF"
      id="ixv-265574"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_7_Member"
      decimals="INF"
      id="ixv-265575"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_8_Member"
      decimals="INF"
      id="ixv-265576"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182219_TH_9_Member"
      decimals="INF"
      id="ixv-265577"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182219_ClassMember" id="ixv-30951">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182219_ClassMember" id="ixv-30957">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182219_ClassMember" id="ixv-30961">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182219_ClassMember" id="ixv-30964">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182219_ClassMember" id="ixv-30968">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182219_ClassMember" id="ixv-30979">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-31037">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205063_ClassMember" id="ixv-31041">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205063_ClassMember" id="ixv-31052">Fidelity Advisor Freedom&#xae; 2040 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205063_ClassMember" id="ixv-31055">Fidelity Advisor Freedom&#xae; 2040 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205063_ClassMember" id="ixv-31059">FIJPX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205063_ClassMember" id="ixv-31078">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2040 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205063_ClassMember" id="ixv-31080">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205063_ClassMember" id="ixv-31085">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205063_ClassMember" id="ixv-31087">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205063_ClassMember" id="ixv-31090">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205063_ClassMember" id="ixv-31093">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205063_ClassMember" id="ixv-31100">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;68&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.62&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205063_ClassMember"
      decimals="0"
      id="ixv-265578"
      unitRef="usd">68</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205063_ClassMember"
      decimals="INF"
      id="ixv-265579"
      unitRef="pure">0.0062</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205063_ClassMember" id="ixv-31142">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205063_ClassMember" id="ixv-31176">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,870


$8,852


$13,792


$14,226


$13,223


$15,921


$16,830


$20,140



Fidelity Freedom 2040 Composite Index&#x2120;


$10,000

$9,883


$9,014


$13,522


$14,245


$13,193


$15,730


$16,747


$19,712



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205063_LG_ClassMember_9YR" id="ixv-31195">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265580"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265581"
      unitRef="usd">9870</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265582"
      unitRef="usd">8852</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265583"
      unitRef="usd">13792</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265584"
      unitRef="usd">14226</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265585"
      unitRef="usd">13223</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265586"
      unitRef="usd">15921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265587"
      unitRef="usd">16830</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265588"
      unitRef="usd">20140</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205063_LG_1_AdditionalIndexMember_9YR"
      id="ixv-31236">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2040 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265589"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265590"
      unitRef="usd">9883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265591"
      unitRef="usd">9014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265592"
      unitRef="usd">13522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265593"
      unitRef="usd">14245</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265594"
      unitRef="usd">13193</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265595"
      unitRef="usd">15730</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265596"
      unitRef="usd">16747</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265597"
      unitRef="usd">19712</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205063_LG_2_AdditionalIndexMember_9YR"
      id="ixv-31277">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265598"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265599"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265600"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265601"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265602"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265603"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265604"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265605"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205063_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265606"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205063_ClassMember" id="ixv-31364">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

19.67%

7.87%

9.79%


Fidelity Freedom 2040 Composite Index&#x2120;

17.71%


7.83%


9.47%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265607"
      unitRef="pure">0.1967</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265608"
      unitRef="pure">0.0787</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-265609"
      unitRef="pure">0.0979</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265610"
      unitRef="pure">0.1771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265611"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-265612"
      unitRef="pure">0.0947</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265613"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265614"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205063_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-265615"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205063_Perf_2018-10-02_ClassMember"
      id="ixv-31433">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205063_ClassMember" id="ixv-31443">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205063_ClassMember" id="ixv-31455">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205063_ClassMember" id="ixv-31459">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205063_ClassMember" id="ixv-31465">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,969,331,790&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,471,178&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205063_InstantMember"
      decimals="0"
      id="ixv-265616"
      unitRef="usd">2969331790</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205063_InstantMember"
      decimals="INF"
      id="ixv-265617"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205063_ClassMember"
      decimals="0"
      id="ixv-265618"
      unitRef="usd">17471178</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205063_ClassMember"
      decimals="INF"
      id="ixv-265619"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205063_ClassMember" id="ixv-31540">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

48.6


International Equity Funds

36.7


Bond Funds

14.3


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 48.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 36.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 14.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205063_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265620"
      unitRef="pure">0.486</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265621"
      unitRef="pure">0.367</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265622"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265623"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205063_ClassMember" id="ixv-31631">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

9.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

9.3


&#160;


Fidelity Advisor Series Equity Growth Fund

7.4


&#160;


Fidelity Series Overseas Fund

6.8


&#160;


Fidelity Series International Value Fund

6.8


&#160;


Fidelity Series International Growth Fund

6.8


&#160;


Fidelity Series Opportunistic Insights Fund

6.2


&#160;


Fidelity Series Investment Grade Bond Fund

6.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

5.6


&#160;


Fidelity Series Value Discovery Fund

5.6


&#160;


&#160;

70.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205063_TH_0_Member"
      decimals="INF"
      id="ixv-265624"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_1_Member"
      decimals="INF"
      id="ixv-265625"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_2_Member"
      decimals="INF"
      id="ixv-265626"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_3_Member"
      decimals="INF"
      id="ixv-265627"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_4_Member"
      decimals="INF"
      id="ixv-265628"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_5_Member"
      decimals="INF"
      id="ixv-265629"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_6_Member"
      decimals="INF"
      id="ixv-265630"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_7_Member"
      decimals="INF"
      id="ixv-265631"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_8_Member"
      decimals="INF"
      id="ixv-265632"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205063_TH_9_Member"
      decimals="INF"
      id="ixv-265633"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205063_ClassMember" id="ixv-31756">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205063_ClassMember" id="ixv-31762">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205063_ClassMember" id="ixv-31766">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205063_ClassMember" id="ixv-31769">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205063_ClassMember" id="ixv-31773">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205063_ClassMember" id="ixv-31784">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-31842">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013232_ClassMember" id="ixv-31846">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013232_ClassMember" id="ixv-31857">Fidelity Advisor Freedom&#xae; 2040 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013232_ClassMember" id="ixv-31860">Fidelity Advisor Freedom&#xae; 2040 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013232_ClassMember" id="ixv-31864">FTFFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013232_ClassMember" id="ixv-31883">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2040 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013232_ClassMember" id="ixv-31885">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013232_ClassMember" id="ixv-31890">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013232_ClassMember" id="ixv-31892">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013232_ClassMember" id="ixv-31895">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013232_ClassMember" id="ixv-31898">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013232_ClassMember" id="ixv-31905">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;128&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013232_ClassMember"
      decimals="0"
      id="ixv-265634"
      unitRef="usd">128</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013232_ClassMember"
      decimals="INF"
      id="ixv-265635"
      unitRef="pure">0.0117</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013232_ClassMember" id="ixv-31947">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013232_ClassMember" id="ixv-31981">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$11,123


$12,581


$12,935


$11,533


$17,872


$18,320


$16,936


$20,252


$21,285


$25,326



Fidelity Freedom 2040 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,716


$18,260


$21,771


$23,178


$27,282



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013232_LG_ClassMember_11YR" id="ixv-32002">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265636"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265637"
      unitRef="usd">11123</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265638"
      unitRef="usd">12581</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265639"
      unitRef="usd">12935</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265640"
      unitRef="usd">11533</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265641"
      unitRef="usd">17872</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265642"
      unitRef="usd">18320</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265643"
      unitRef="usd">16936</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265644"
      unitRef="usd">20252</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265645"
      unitRef="usd">21285</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265646"
      unitRef="usd">25326</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013232_LG_1_AdditionalIndexMember_11YR"
      id="ixv-32051">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2040 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265647"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265648"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265649"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265650"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265651"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265652"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265653"
      unitRef="usd">19716</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265654"
      unitRef="usd">18260</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265655"
      unitRef="usd">21771</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265656"
      unitRef="usd">23178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265657"
      unitRef="usd">27282</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013232_LG_2_AdditionalIndexMember_11YR"
      id="ixv-32100">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265658"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265659"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265660"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265661"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265662"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265663"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265664"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265665"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265666"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265667"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013232_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265668"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013232_ClassMember" id="ixv-32201">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

14.82%

6.46%


9.74%


Class M (without 3.50% sales charge)

18.98%

7.22%

10.13%


Fidelity Freedom 2040 Composite Index&#x2120;

17.71%


7.83%


10.56%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_ClassMember_1YR"
      decimals="INF"
      id="ixv-265669"
      unitRef="pure">0.1482</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_ClassMember_5YR"
      decimals="INF"
      id="ixv-265670"
      unitRef="pure">0.0646</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_ClassMember_10YR"
      decimals="INF"
      id="ixv-265671"
      unitRef="pure">0.0974</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265672"
      unitRef="pure">0.1898</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265673"
      unitRef="pure">0.0722</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265674"
      unitRef="pure">0.1013</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265675"
      unitRef="pure">0.1771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265676"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265677"
      unitRef="pure">0.1056</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265678"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265679"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013232_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265680"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013232_ClassMember" id="ixv-32286">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013232_ClassMember" id="ixv-32298">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013232_ClassMember" id="ixv-32302">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013232_ClassMember" id="ixv-32308">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,969,331,790&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,471,178&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013232_InstantMember"
      decimals="0"
      id="ixv-265681"
      unitRef="usd">2969331790</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013232_InstantMember"
      decimals="INF"
      id="ixv-265682"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013232_ClassMember"
      decimals="0"
      id="ixv-265683"
      unitRef="usd">17471178</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013232_ClassMember"
      decimals="INF"
      id="ixv-265684"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013232_ClassMember" id="ixv-32383">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

48.6


International Equity Funds

36.7


Bond Funds

14.3


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 48.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 36.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 14.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013232_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265685"
      unitRef="pure">0.486</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265686"
      unitRef="pure">0.367</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265687"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265688"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013232_ClassMember" id="ixv-32474">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

9.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

9.3


&#160;


Fidelity Advisor Series Equity Growth Fund

7.4


&#160;


Fidelity Series Overseas Fund

6.8


&#160;


Fidelity Series International Value Fund

6.8


&#160;


Fidelity Series International Growth Fund

6.8


&#160;


Fidelity Series Opportunistic Insights Fund

6.2


&#160;


Fidelity Series Investment Grade Bond Fund

6.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

5.6


&#160;


Fidelity Series Value Discovery Fund

5.6


&#160;


&#160;

70.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013232_TH_0_Member"
      decimals="INF"
      id="ixv-265689"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_1_Member"
      decimals="INF"
      id="ixv-265690"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_2_Member"
      decimals="INF"
      id="ixv-265691"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_3_Member"
      decimals="INF"
      id="ixv-265692"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_4_Member"
      decimals="INF"
      id="ixv-265693"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_5_Member"
      decimals="INF"
      id="ixv-265694"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_6_Member"
      decimals="INF"
      id="ixv-265695"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_7_Member"
      decimals="INF"
      id="ixv-265696"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_8_Member"
      decimals="INF"
      id="ixv-265697"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013232_TH_9_Member"
      decimals="INF"
      id="ixv-265698"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013232_ClassMember" id="ixv-32599">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013232_ClassMember" id="ixv-32605">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013232_ClassMember" id="ixv-32609">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013232_ClassMember" id="ixv-32612">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013232_ClassMember" id="ixv-32616">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013232_ClassMember" id="ixv-32627">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013232_ClassMember" id="ixv-32641">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-32697">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013233_ClassMember" id="ixv-32701">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013233_ClassMember" id="ixv-32712">Fidelity Advisor Freedom&#xae; 2040 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013233_ClassMember" id="ixv-32715">Fidelity Advisor Freedom&#xae; 2040 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013233_ClassMember" id="ixv-32719">FIFFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013233_ClassMember" id="ixv-32738">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2040 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013233_ClassMember" id="ixv-32740">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013233_ClassMember" id="ixv-32745">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013233_ClassMember" id="ixv-32747">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013233_ClassMember" id="ixv-32750">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013233_ClassMember" id="ixv-32753">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013233_ClassMember" id="ixv-32760">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;74&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.67&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013233_ClassMember"
      decimals="0"
      id="ixv-265699"
      unitRef="usd">74</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013233_ClassMember"
      decimals="INF"
      id="ixv-265700"
      unitRef="pure">0.0067</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013233_ClassMember" id="ixv-32802">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013233_ClassMember" id="ixv-32836">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,582


$13,173


$13,610


$12,200


$18,994


$19,569


$18,170


$21,850


$23,074


$27,601



Fidelity Freedom 2040 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,716


$18,260


$21,771


$23,178


$27,282



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013233_LG_ClassMember_11YR" id="ixv-32855">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265701"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265702"
      unitRef="usd">11582</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265703"
      unitRef="usd">13173</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265704"
      unitRef="usd">13610</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265705"
      unitRef="usd">12200</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265706"
      unitRef="usd">18994</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265707"
      unitRef="usd">19569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265708"
      unitRef="usd">18170</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265709"
      unitRef="usd">21850</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265710"
      unitRef="usd">23074</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265711"
      unitRef="usd">27601</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013233_LG_1_AdditionalIndexMember_11YR"
      id="ixv-32904">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2040 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265712"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265713"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265714"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265715"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265716"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265717"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265718"
      unitRef="usd">19716</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265719"
      unitRef="usd">18260</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265720"
      unitRef="usd">21771</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265721"
      unitRef="usd">23178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265722"
      unitRef="usd">27282</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013233_LG_2_AdditionalIndexMember_11YR"
      id="ixv-32953">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265723"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265724"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265725"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265726"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265727"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265728"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265729"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265730"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265731"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265732"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013233_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265733"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013233_ClassMember" id="ixv-33054">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

19.62%

7.76%

10.69%


Fidelity Freedom 2040 Composite Index&#x2120;

17.71%


7.83%


10.56%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265734"
      unitRef="pure">0.1962</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265735"
      unitRef="pure">0.0776</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265736"
      unitRef="pure">0.1069</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265737"
      unitRef="pure">0.1771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265738"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265739"
      unitRef="pure">0.1056</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265740"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265741"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013233_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265742"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013233_ClassMember" id="ixv-33124">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013233_ClassMember" id="ixv-33136">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013233_ClassMember" id="ixv-33140">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013233_ClassMember" id="ixv-33146">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,969,331,790&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,471,178&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013233_InstantMember"
      decimals="0"
      id="ixv-265743"
      unitRef="usd">2969331790</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013233_InstantMember"
      decimals="INF"
      id="ixv-265744"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013233_ClassMember"
      decimals="0"
      id="ixv-265745"
      unitRef="usd">17471178</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013233_ClassMember"
      decimals="INF"
      id="ixv-265746"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013233_ClassMember" id="ixv-33221">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

48.6


International Equity Funds

36.7


Bond Funds

14.3


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 48.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 36.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 14.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013233_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265747"
      unitRef="pure">0.486</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265748"
      unitRef="pure">0.367</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265749"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265750"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013233_ClassMember" id="ixv-33312">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

9.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

9.3


&#160;


Fidelity Advisor Series Equity Growth Fund

7.4


&#160;


Fidelity Series Overseas Fund

6.8


&#160;


Fidelity Series International Value Fund

6.8


&#160;


Fidelity Series International Growth Fund

6.8


&#160;


Fidelity Series Opportunistic Insights Fund

6.2


&#160;


Fidelity Series Investment Grade Bond Fund

6.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

5.6


&#160;


Fidelity Series Value Discovery Fund

5.6


&#160;


&#160;

70.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013233_TH_0_Member"
      decimals="INF"
      id="ixv-265751"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_1_Member"
      decimals="INF"
      id="ixv-265752"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_2_Member"
      decimals="INF"
      id="ixv-265753"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_3_Member"
      decimals="INF"
      id="ixv-265754"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_4_Member"
      decimals="INF"
      id="ixv-265755"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_5_Member"
      decimals="INF"
      id="ixv-265756"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_6_Member"
      decimals="INF"
      id="ixv-265757"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_7_Member"
      decimals="INF"
      id="ixv-265758"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_8_Member"
      decimals="INF"
      id="ixv-265759"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013233_TH_9_Member"
      decimals="INF"
      id="ixv-265760"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013233_ClassMember" id="ixv-33437">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013233_ClassMember" id="ixv-33443">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013233_ClassMember" id="ixv-33447">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013233_ClassMember" id="ixv-33450">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013233_ClassMember" id="ixv-33454">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013233_ClassMember" id="ixv-33465">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013233_ClassMember" id="ixv-33479">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-33535">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013231_ClassMember" id="ixv-33539">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013231_ClassMember" id="ixv-33550">Fidelity Advisor Freedom&#xae; 2040 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013231_ClassMember" id="ixv-33553">Fidelity Advisor Freedom&#xae; 2040 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013231_ClassMember" id="ixv-33557">FCFFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013231_ClassMember" id="ixv-33576">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2040 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013231_ClassMember" id="ixv-33578">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013231_ClassMember" id="ixv-33583">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013231_ClassMember" id="ixv-33585">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013231_ClassMember" id="ixv-33588">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013231_ClassMember" id="ixv-33591">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013231_ClassMember" id="ixv-33598">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;182&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.67&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013231_ClassMember"
      decimals="0"
      id="ixv-265761"
      unitRef="usd">182</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013231_ClassMember"
      decimals="INF"
      id="ixv-265762"
      unitRef="pure">0.0167</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013231_ClassMember" id="ixv-33640">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013231_ClassMember" id="ixv-33674">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,470


$12,907


$13,213


$11,718


$18,060


$18,417


$16,947


$20,166


$21,243


$25,357



Fidelity Freedom 2040 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,716


$18,260


$21,771


$23,178


$27,282



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013231_LG_ClassMember_11YR" id="ixv-33693">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265763"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265764"
      unitRef="usd">11470</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265765"
      unitRef="usd">12907</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265766"
      unitRef="usd">13213</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265767"
      unitRef="usd">11718</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265768"
      unitRef="usd">18060</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265769"
      unitRef="usd">18417</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265770"
      unitRef="usd">16947</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265771"
      unitRef="usd">20166</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265772"
      unitRef="usd">21243</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265773"
      unitRef="usd">25357</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013231_LG_1_AdditionalIndexMember_11YR"
      id="ixv-33742">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2040 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265774"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265775"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265776"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265777"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265778"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265779"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265780"
      unitRef="usd">19716</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265781"
      unitRef="usd">18260</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265782"
      unitRef="usd">21771</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265783"
      unitRef="usd">23178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265784"
      unitRef="usd">27282</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013231_LG_2_AdditionalIndexMember_11YR"
      id="ixv-33791">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265785"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265786"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265787"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265788"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265789"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265790"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265791"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265792"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265793"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265794"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013231_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265795"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013231_ClassMember" id="ixv-33892">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

17.47%

6.70%


9.75%


Class C

18.47%

6.70%

9.75%


Fidelity Freedom 2040 Composite Index&#x2120;

17.71%


7.83%


10.56%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_ClassMember_1YR"
      decimals="INF"
      id="ixv-265796"
      unitRef="pure">0.1747</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_ClassMember_5YR"
      decimals="INF"
      id="ixv-265797"
      unitRef="pure">0.0670</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_ClassMember_10YR"
      decimals="INF"
      id="ixv-265798"
      unitRef="pure">0.0975</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265799"
      unitRef="pure">0.1847</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265800"
      unitRef="pure">0.0670</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265801"
      unitRef="pure">0.0975</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265802"
      unitRef="pure">0.1771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265803"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265804"
      unitRef="pure">0.1056</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265805"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265806"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013231_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265807"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013231_ClassMember" id="ixv-33978">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013231_ClassMember" id="ixv-33990">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013231_ClassMember" id="ixv-33994">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013231_ClassMember" id="ixv-34000">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,969,331,790&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,471,178&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013231_InstantMember"
      decimals="0"
      id="ixv-265808"
      unitRef="usd">2969331790</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013231_InstantMember"
      decimals="INF"
      id="ixv-265809"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013231_ClassMember"
      decimals="0"
      id="ixv-265810"
      unitRef="usd">17471178</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013231_ClassMember"
      decimals="INF"
      id="ixv-265811"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013231_ClassMember" id="ixv-34075">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

48.6


International Equity Funds

36.7


Bond Funds

14.3


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 48.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 36.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 14.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013231_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265812"
      unitRef="pure">0.486</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265813"
      unitRef="pure">0.367</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265814"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265815"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013231_ClassMember" id="ixv-34166">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

9.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

9.3


&#160;


Fidelity Advisor Series Equity Growth Fund

7.4


&#160;


Fidelity Series Overseas Fund

6.8


&#160;


Fidelity Series International Value Fund

6.8


&#160;


Fidelity Series International Growth Fund

6.8


&#160;


Fidelity Series Opportunistic Insights Fund

6.2


&#160;


Fidelity Series Investment Grade Bond Fund

6.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

5.6


&#160;


Fidelity Series Value Discovery Fund

5.6


&#160;


&#160;

70.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013231_TH_0_Member"
      decimals="INF"
      id="ixv-265816"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_1_Member"
      decimals="INF"
      id="ixv-265817"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_2_Member"
      decimals="INF"
      id="ixv-265818"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_3_Member"
      decimals="INF"
      id="ixv-265819"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_4_Member"
      decimals="INF"
      id="ixv-265820"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_5_Member"
      decimals="INF"
      id="ixv-265821"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_6_Member"
      decimals="INF"
      id="ixv-265822"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_7_Member"
      decimals="INF"
      id="ixv-265823"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_8_Member"
      decimals="INF"
      id="ixv-265824"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013231_TH_9_Member"
      decimals="INF"
      id="ixv-265825"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013231_ClassMember" id="ixv-34291">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013231_ClassMember" id="ixv-34297">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013231_ClassMember" id="ixv-34301">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013231_ClassMember" id="ixv-34304">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013231_ClassMember" id="ixv-34308">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013231_ClassMember" id="ixv-34319">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013231_ClassMember" id="ixv-34333">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-34389">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013229_ClassMember" id="ixv-34393">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013229_ClassMember" id="ixv-34404">Fidelity Advisor Freedom&#xae; 2040 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013229_ClassMember" id="ixv-34407">Fidelity Advisor Freedom&#xae; 2040 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013229_ClassMember" id="ixv-34411">FAFFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013229_ClassMember" id="ixv-34430">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2040 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013229_ClassMember" id="ixv-34432">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013229_ClassMember" id="ixv-34437">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013229_ClassMember" id="ixv-34439">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013229_ClassMember" id="ixv-34442">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013229_ClassMember" id="ixv-34445">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013229_ClassMember" id="ixv-34452">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;101&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.92&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013229_ClassMember"
      decimals="0"
      id="ixv-265826"
      unitRef="usd">101</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013229_ClassMember"
      decimals="INF"
      id="ixv-265827"
      unitRef="pure">0.0092</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013229_ClassMember" id="ixv-34494">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013229_ClassMember" id="ixv-34528">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,889


$12,350


$12,725


$11,378


$17,672


$18,155


$16,828


$20,174


$21,252


$25,368



Fidelity Freedom 2040 Composite Index&#x2120;


$10,000

$11,501


$13,034


$13,678


$12,476


$18,715


$19,716


$18,260


$21,771


$23,178


$27,282



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013229_LG_ClassMember_11YR" id="ixv-34549">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-265828"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265829"
      unitRef="usd">10889</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265830"
      unitRef="usd">12350</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265831"
      unitRef="usd">12725</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265832"
      unitRef="usd">11378</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265833"
      unitRef="usd">17672</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265834"
      unitRef="usd">18155</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265835"
      unitRef="usd">16828</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265836"
      unitRef="usd">20174</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265837"
      unitRef="usd">21252</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265838"
      unitRef="usd">25368</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013229_LG_1_AdditionalIndexMember_11YR"
      id="ixv-34598">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2040 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265839"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265840"
      unitRef="usd">11501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265841"
      unitRef="usd">13034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265842"
      unitRef="usd">13678</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265843"
      unitRef="usd">12476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265844"
      unitRef="usd">18715</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265845"
      unitRef="usd">19716</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265846"
      unitRef="usd">18260</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265847"
      unitRef="usd">21771</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265848"
      unitRef="usd">23178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265849"
      unitRef="usd">27282</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013229_LG_2_AdditionalIndexMember_11YR"
      id="ixv-34647">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-265850"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265851"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265852"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265853"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265854"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265855"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265856"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265857"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265858"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265859"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013229_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265860"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013229_ClassMember" id="ixv-34748">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

12.50%

6.23%


9.76%


Class A (without 5.75% sales charge)

19.37%

7.50%

10.41%


Fidelity Freedom 2040 Composite Index&#x2120;

17.71%


7.83%


10.56%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_ClassMember_1YR"
      decimals="INF"
      id="ixv-265861"
      unitRef="pure">0.1250</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_ClassMember_5YR"
      decimals="INF"
      id="ixv-265862"
      unitRef="pure">0.0623</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_ClassMember_10YR"
      decimals="INF"
      id="ixv-265863"
      unitRef="pure">0.0976</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265864"
      unitRef="pure">0.1937</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265865"
      unitRef="pure">0.0750</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-265866"
      unitRef="pure">0.1041</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265867"
      unitRef="pure">0.1771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265868"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-265869"
      unitRef="pure">0.1056</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265870"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265871"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013229_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-265872"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013229_ClassMember" id="ixv-34833">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013229_ClassMember" id="ixv-34845">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013229_ClassMember" id="ixv-34849">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013229_ClassMember" id="ixv-34855">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,969,331,790&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,471,178&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013229_InstantMember"
      decimals="0"
      id="ixv-265873"
      unitRef="usd">2969331790</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013229_InstantMember"
      decimals="INF"
      id="ixv-265874"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013229_ClassMember"
      decimals="0"
      id="ixv-265875"
      unitRef="usd">17471178</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013229_ClassMember"
      decimals="INF"
      id="ixv-265876"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013229_ClassMember" id="ixv-34930">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

48.6


International Equity Funds

36.7


Bond Funds

14.3


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 48.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 36.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 14.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013229_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265877"
      unitRef="pure">0.486</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265878"
      unitRef="pure">0.367</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265879"
      unitRef="pure">0.143</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265880"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013229_ClassMember" id="ixv-35021">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

9.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

9.3


&#160;


Fidelity Advisor Series Equity Growth Fund

7.4


&#160;


Fidelity Series Overseas Fund

6.8


&#160;


Fidelity Series International Value Fund

6.8


&#160;


Fidelity Series International Growth Fund

6.8


&#160;


Fidelity Series Opportunistic Insights Fund

6.2


&#160;


Fidelity Series Investment Grade Bond Fund

6.0


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

5.6


&#160;


Fidelity Series Value Discovery Fund

5.6


&#160;


&#160;

70.4

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013229_TH_0_Member"
      decimals="INF"
      id="ixv-265881"
      unitRef="pure">0.099</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_1_Member"
      decimals="INF"
      id="ixv-265882"
      unitRef="pure">0.093</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_2_Member"
      decimals="INF"
      id="ixv-265883"
      unitRef="pure">0.074</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_3_Member"
      decimals="INF"
      id="ixv-265884"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_4_Member"
      decimals="INF"
      id="ixv-265885"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_5_Member"
      decimals="INF"
      id="ixv-265886"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_6_Member"
      decimals="INF"
      id="ixv-265887"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_7_Member"
      decimals="INF"
      id="ixv-265888"
      unitRef="pure">0.060</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_8_Member"
      decimals="INF"
      id="ixv-265889"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013229_TH_9_Member"
      decimals="INF"
      id="ixv-265890"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013229_ClassMember" id="ixv-35146">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013229_ClassMember" id="ixv-35152">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013229_ClassMember" id="ixv-35156">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013229_ClassMember" id="ixv-35159">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013229_ClassMember" id="ixv-35163">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013229_ClassMember" id="ixv-35174">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013229_ClassMember" id="ixv-35188">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-35244">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182218_ClassMember" id="ixv-35248">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182218_ClassMember" id="ixv-35259">Fidelity Advisor Freedom&#xae; 2035 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182218_ClassMember" id="ixv-35262">Fidelity Advisor Freedom&#xae; 2035 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182218_ClassMember" id="ixv-35266">FHGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182218_ClassMember" id="ixv-35285">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2035 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182218_ClassMember" id="ixv-35287">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182218_ClassMember" id="ixv-35292">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182218_ClassMember" id="ixv-35294">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182218_ClassMember" id="ixv-35297">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182218_ClassMember" id="ixv-35300">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182218_ClassMember" id="ixv-35307">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;42&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.39&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182218_ClassMember"
      decimals="0"
      id="ixv-265891"
      unitRef="usd">42</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182218_ClassMember"
      decimals="INF"
      id="ixv-265892"
      unitRef="pure">0.0039</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182218_ClassMember" id="ixv-35349">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182218_ClassMember" id="ixv-35383">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,903


$11,301


$10,313


$15,514


$15,898


$14,829


$17,409


$18,406


$21,540



Fidelity Freedom 2035 Composite Index&#x2120;


$10,000

$10,906


$11,453


$10,625


$15,344


$15,989


$14,854


$17,281


$18,345


$21,114



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182218_LG_ClassMember_10YR" id="ixv-35402">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-265893"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265894"
      unitRef="usd">10903</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265895"
      unitRef="usd">11301</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265896"
      unitRef="usd">10313</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265897"
      unitRef="usd">15514</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265898"
      unitRef="usd">15898</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265899"
      unitRef="usd">14829</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265900"
      unitRef="usd">17409</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265901"
      unitRef="usd">18406</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265902"
      unitRef="usd">21540</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182218_LG_1_AdditionalIndexMember_10YR"
      id="ixv-35447">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2035 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265903"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265904"
      unitRef="usd">10906</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265905"
      unitRef="usd">11453</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265906"
      unitRef="usd">10625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265907"
      unitRef="usd">15344</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265908"
      unitRef="usd">15989</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265909"
      unitRef="usd">14854</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265910"
      unitRef="usd">17281</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265911"
      unitRef="usd">18345</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265912"
      unitRef="usd">21114</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182218_LG_2_AdditionalIndexMember_10YR"
      id="ixv-35492">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-265913"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265914"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265915"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265916"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265917"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265918"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265919"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265920"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265921"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182218_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265922"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182218_ClassMember" id="ixv-35586">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

17.03%

6.78%

9.09%


Fidelity Freedom 2035 Composite Index&#x2120;

15.09%


6.59%


8.84%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265923"
      unitRef="pure">0.1703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265924"
      unitRef="pure">0.0678</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-265925"
      unitRef="pure">0.0909</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265926"
      unitRef="pure">0.1509</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265927"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-265928"
      unitRef="pure">0.0884</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265929"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265930"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182218_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-265931"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182218_Perf_2017-06-06_ClassMember"
      id="ixv-35655">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182218_ClassMember" id="ixv-35665">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182218_ClassMember" id="ixv-35677">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182218_ClassMember" id="ixv-35681">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182218_ClassMember" id="ixv-35687">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,055,791,505&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,106,418&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182218_InstantMember"
      decimals="0"
      id="ixv-265932"
      unitRef="usd">3055791505</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182218_InstantMember"
      decimals="INF"
      id="ixv-265933"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182218_ClassMember"
      decimals="0"
      id="ixv-265934"
      unitRef="usd">17106418</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182218_ClassMember"
      decimals="INF"
      id="ixv-265935"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182218_ClassMember" id="ixv-35762">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

39.7


International Equity Funds

30.9


Bond Funds

29.0


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 39.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 30.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 29.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182218_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265936"
      unitRef="pure">0.397</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265937"
      unitRef="pure">0.309</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265938"
      unitRef="pure">0.290</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265939"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182218_ClassMember" id="ixv-35853">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

17.0


&#160;


Fidelity Series Large Cap Stock Fund

8.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.9


&#160;


Fidelity Advisor Series Equity Growth Fund

5.9


&#160;


Fidelity Series Overseas Fund

5.6


&#160;


Fidelity Series International Value Fund

5.6


&#160;


Fidelity Series International Growth Fund

5.6


&#160;


Fidelity Series Opportunistic Insights Fund

5.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

4.6


&#160;


Fidelity Series Value Discovery Fund

4.6


&#160;


&#160;

70.0

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182218_TH_0_Member"
      decimals="INF"
      id="ixv-265940"
      unitRef="pure">0.170</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_1_Member"
      decimals="INF"
      id="ixv-265941"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_2_Member"
      decimals="INF"
      id="ixv-265942"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_3_Member"
      decimals="INF"
      id="ixv-265943"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_4_Member"
      decimals="INF"
      id="ixv-265944"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_5_Member"
      decimals="INF"
      id="ixv-265945"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_6_Member"
      decimals="INF"
      id="ixv-265946"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_7_Member"
      decimals="INF"
      id="ixv-265947"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_8_Member"
      decimals="INF"
      id="ixv-265948"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182218_TH_9_Member"
      decimals="INF"
      id="ixv-265949"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182218_ClassMember" id="ixv-35978">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182218_ClassMember" id="ixv-35984">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182218_ClassMember" id="ixv-35988">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182218_ClassMember" id="ixv-35991">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182218_ClassMember" id="ixv-35995">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182218_ClassMember" id="ixv-36006">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-36064">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205062_ClassMember" id="ixv-36068">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205062_ClassMember" id="ixv-36079">Fidelity Advisor Freedom&#xae; 2035 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205062_ClassMember" id="ixv-36082">Fidelity Advisor Freedom&#xae; 2035 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205062_ClassMember" id="ixv-36086">FIJOX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205062_ClassMember" id="ixv-36105">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2035 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205062_ClassMember" id="ixv-36107">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205062_ClassMember" id="ixv-36112">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205062_ClassMember" id="ixv-36114">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205062_ClassMember" id="ixv-36117">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205062_ClassMember" id="ixv-36120">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205062_ClassMember" id="ixv-36127">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;64&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.59&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205062_ClassMember"
      decimals="0"
      id="ixv-265950"
      unitRef="usd">64</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205062_ClassMember"
      decimals="INF"
      id="ixv-265951"
      unitRef="pure">0.0059</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205062_ClassMember" id="ixv-36169">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205062_ClassMember" id="ixv-36203">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,904


$9,026


$13,555


$13,874


$12,921


$15,144


$15,977


$18,656



Fidelity Freedom 2035 Composite Index&#x2120;


$10,000

$9,911


$9,194


$13,278


$13,837


$12,855


$14,954


$15,875


$18,272



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205062_LG_ClassMember_9YR" id="ixv-36222">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-265952"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-265953"
      unitRef="usd">9904</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-265954"
      unitRef="usd">9026</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-265955"
      unitRef="usd">13555</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-265956"
      unitRef="usd">13874</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-265957"
      unitRef="usd">12921</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-265958"
      unitRef="usd">15144</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-265959"
      unitRef="usd">15977</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-265960"
      unitRef="usd">18656</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205062_LG_1_AdditionalIndexMember_9YR"
      id="ixv-36263">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2035 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265961"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265962"
      unitRef="usd">9911</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265963"
      unitRef="usd">9194</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265964"
      unitRef="usd">13278</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265965"
      unitRef="usd">13837</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265966"
      unitRef="usd">12855</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265967"
      unitRef="usd">14954</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265968"
      unitRef="usd">15875</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265969"
      unitRef="usd">18272</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205062_LG_2_AdditionalIndexMember_9YR"
      id="ixv-36304">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-265970"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-265971"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-265972"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-265973"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-265974"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-265975"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-265976"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-265977"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205062_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-265978"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205062_ClassMember" id="ixv-36391">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

16.77%

6.60%

8.67%


Fidelity Freedom 2035 Composite Index&#x2120;

15.09%


6.59%


8.37%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-265979"
      unitRef="pure">0.1677</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-265980"
      unitRef="pure">0.0660</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-265981"
      unitRef="pure">0.0867</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-265982"
      unitRef="pure">0.1509</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-265983"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-265984"
      unitRef="pure">0.0837</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-265985"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-265986"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205062_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-265987"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205062_Perf_2018-10-02_ClassMember"
      id="ixv-36460">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205062_ClassMember" id="ixv-36470">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205062_ClassMember" id="ixv-36482">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205062_ClassMember" id="ixv-36486">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205062_ClassMember" id="ixv-36492">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,055,791,505&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,106,418&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205062_InstantMember"
      decimals="0"
      id="ixv-265988"
      unitRef="usd">3055791505</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205062_InstantMember"
      decimals="INF"
      id="ixv-265989"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205062_ClassMember"
      decimals="0"
      id="ixv-265990"
      unitRef="usd">17106418</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205062_ClassMember"
      decimals="INF"
      id="ixv-265991"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205062_ClassMember" id="ixv-36567">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

39.7


International Equity Funds

30.9


Bond Funds

29.0


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 39.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 30.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 29.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205062_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-265992"
      unitRef="pure">0.397</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-265993"
      unitRef="pure">0.309</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-265994"
      unitRef="pure">0.290</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-265995"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205062_ClassMember" id="ixv-36658">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

17.0


&#160;


Fidelity Series Large Cap Stock Fund

8.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.9


&#160;


Fidelity Advisor Series Equity Growth Fund

5.9


&#160;


Fidelity Series Overseas Fund

5.6


&#160;


Fidelity Series International Value Fund

5.6


&#160;


Fidelity Series International Growth Fund

5.6


&#160;


Fidelity Series Opportunistic Insights Fund

5.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

4.6


&#160;


Fidelity Series Value Discovery Fund

4.6


&#160;


&#160;

70.0

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205062_TH_0_Member"
      decimals="INF"
      id="ixv-265996"
      unitRef="pure">0.170</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_1_Member"
      decimals="INF"
      id="ixv-265997"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_2_Member"
      decimals="INF"
      id="ixv-265998"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_3_Member"
      decimals="INF"
      id="ixv-265999"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_4_Member"
      decimals="INF"
      id="ixv-266000"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_5_Member"
      decimals="INF"
      id="ixv-266001"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_6_Member"
      decimals="INF"
      id="ixv-266002"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_7_Member"
      decimals="INF"
      id="ixv-266003"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_8_Member"
      decimals="INF"
      id="ixv-266004"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205062_TH_9_Member"
      decimals="INF"
      id="ixv-266005"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205062_ClassMember" id="ixv-36783">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205062_ClassMember" id="ixv-36789">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205062_ClassMember" id="ixv-36793">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205062_ClassMember" id="ixv-36796">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205062_ClassMember" id="ixv-36800">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205062_ClassMember" id="ixv-36811">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-36869">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013227_ClassMember" id="ixv-36873">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013227_ClassMember" id="ixv-36884">Fidelity Advisor Freedom&#xae; 2035 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013227_ClassMember" id="ixv-36887">Fidelity Advisor Freedom&#xae; 2035 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013227_ClassMember" id="ixv-36891">FTTHX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013227_ClassMember" id="ixv-36910">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2035 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013227_ClassMember" id="ixv-36912">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013227_ClassMember" id="ixv-36917">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013227_ClassMember" id="ixv-36919">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013227_ClassMember" id="ixv-36922">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013227_ClassMember" id="ixv-36925">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013227_ClassMember" id="ixv-36932">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;124&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.15&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013227_ClassMember"
      decimals="0"
      id="ixv-266006"
      unitRef="usd">124</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013227_ClassMember"
      decimals="INF"
      id="ixv-266007"
      unitRef="pure">0.0115</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013227_ClassMember" id="ixv-36974">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013227_ClassMember" id="ixv-37008">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$11,120


$12,564


$12,927


$11,717


$17,489


$17,792


$16,476


$19,198


$20,139


$23,386



Fidelity Freedom 2035 Composite Index&#x2120;


$10,000

$11,497


$13,009


$13,661


$12,673


$18,301


$19,072


$17,718


$20,612


$21,881


$25,184



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013227_LG_ClassMember_11YR" id="ixv-37029">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266008"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266009"
      unitRef="usd">11120</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266010"
      unitRef="usd">12564</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266011"
      unitRef="usd">12927</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266012"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266013"
      unitRef="usd">17489</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266014"
      unitRef="usd">17792</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266015"
      unitRef="usd">16476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266016"
      unitRef="usd">19198</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266017"
      unitRef="usd">20139</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266018"
      unitRef="usd">23386</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013227_LG_1_AdditionalIndexMember_11YR"
      id="ixv-37078">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2035 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266019"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266020"
      unitRef="usd">11497</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266021"
      unitRef="usd">13009</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266022"
      unitRef="usd">13661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266023"
      unitRef="usd">12673</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266024"
      unitRef="usd">18301</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266025"
      unitRef="usd">19072</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266026"
      unitRef="usd">17718</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266027"
      unitRef="usd">20612</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266028"
      unitRef="usd">21881</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266029"
      unitRef="usd">25184</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013227_LG_2_AdditionalIndexMember_11YR"
      id="ixv-37127">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266030"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266031"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266032"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266033"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266034"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266035"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266036"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266037"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266038"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266039"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013227_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266040"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013227_ClassMember" id="ixv-37228">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

12.06%

5.23%


8.87%


Class M (without 3.50% sales charge)

16.12%

5.98%

9.26%


Fidelity Freedom 2035 Composite Index&#x2120;

15.09%


6.59%


9.68%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_ClassMember_1YR"
      decimals="INF"
      id="ixv-266041"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_ClassMember_5YR"
      decimals="INF"
      id="ixv-266042"
      unitRef="pure">0.0523</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_ClassMember_10YR"
      decimals="INF"
      id="ixv-266043"
      unitRef="pure">0.0887</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266044"
      unitRef="pure">0.1612</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266045"
      unitRef="pure">0.0598</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266046"
      unitRef="pure">0.0926</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266047"
      unitRef="pure">0.1509</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266048"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266049"
      unitRef="pure">0.0968</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266050"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266051"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013227_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266052"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013227_ClassMember" id="ixv-37313">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013227_ClassMember" id="ixv-37325">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013227_ClassMember" id="ixv-37329">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013227_ClassMember" id="ixv-37335">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,055,791,505&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,106,418&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013227_InstantMember"
      decimals="0"
      id="ixv-266053"
      unitRef="usd">3055791505</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013227_InstantMember"
      decimals="INF"
      id="ixv-266054"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013227_ClassMember"
      decimals="0"
      id="ixv-266055"
      unitRef="usd">17106418</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013227_ClassMember"
      decimals="INF"
      id="ixv-266056"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013227_ClassMember" id="ixv-37410">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

39.7


International Equity Funds

30.9


Bond Funds

29.0


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 39.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 30.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 29.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013227_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266057"
      unitRef="pure">0.397</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266058"
      unitRef="pure">0.309</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266059"
      unitRef="pure">0.290</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266060"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013227_ClassMember" id="ixv-37501">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

17.0


&#160;


Fidelity Series Large Cap Stock Fund

8.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.9


&#160;


Fidelity Advisor Series Equity Growth Fund

5.9


&#160;


Fidelity Series Overseas Fund

5.6


&#160;


Fidelity Series International Value Fund

5.6


&#160;


Fidelity Series International Growth Fund

5.6


&#160;


Fidelity Series Opportunistic Insights Fund

5.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

4.6


&#160;


Fidelity Series Value Discovery Fund

4.6


&#160;


&#160;

70.0

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013227_TH_0_Member"
      decimals="INF"
      id="ixv-266061"
      unitRef="pure">0.170</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_1_Member"
      decimals="INF"
      id="ixv-266062"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_2_Member"
      decimals="INF"
      id="ixv-266063"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_3_Member"
      decimals="INF"
      id="ixv-266064"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_4_Member"
      decimals="INF"
      id="ixv-266065"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_5_Member"
      decimals="INF"
      id="ixv-266066"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_6_Member"
      decimals="INF"
      id="ixv-266067"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_7_Member"
      decimals="INF"
      id="ixv-266068"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_8_Member"
      decimals="INF"
      id="ixv-266069"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013227_TH_9_Member"
      decimals="INF"
      id="ixv-266070"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013227_ClassMember" id="ixv-37626">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013227_ClassMember" id="ixv-37632">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013227_ClassMember" id="ixv-37636">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013227_ClassMember" id="ixv-37639">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013227_ClassMember" id="ixv-37643">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013227_ClassMember" id="ixv-37654">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013227_ClassMember" id="ixv-37661">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-37717">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013228_ClassMember" id="ixv-37721">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013228_ClassMember" id="ixv-37732">Fidelity Advisor Freedom&#xae; 2035 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013228_ClassMember" id="ixv-37735">Fidelity Advisor Freedom&#xae; 2035 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013228_ClassMember" id="ixv-37739">FITHX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013228_ClassMember" id="ixv-37758">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2035 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013228_ClassMember" id="ixv-37760">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013228_ClassMember" id="ixv-37765">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013228_ClassMember" id="ixv-37767">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013228_ClassMember" id="ixv-37770">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013228_ClassMember" id="ixv-37773">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013228_ClassMember" id="ixv-37780">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;70&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.65&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013228_ClassMember"
      decimals="0"
      id="ixv-266071"
      unitRef="usd">70</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013228_ClassMember"
      decimals="INF"
      id="ixv-266072"
      unitRef="pure">0.0065</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013228_ClassMember" id="ixv-37822">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013228_ClassMember" id="ixv-37856">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,579


$13,142


$13,598


$12,387


$18,579


$18,998


$17,680


$20,699


$21,819


$25,472



Fidelity Freedom 2035 Composite Index&#x2120;


$10,000

$11,497


$13,009


$13,661


$12,673


$18,301


$19,072


$17,718


$20,612


$21,881


$25,184



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013228_LG_ClassMember_11YR" id="ixv-37875">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266073"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266074"
      unitRef="usd">11579</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266075"
      unitRef="usd">13142</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266076"
      unitRef="usd">13598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266077"
      unitRef="usd">12387</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266078"
      unitRef="usd">18579</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266079"
      unitRef="usd">18998</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266080"
      unitRef="usd">17680</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266081"
      unitRef="usd">20699</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266082"
      unitRef="usd">21819</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266083"
      unitRef="usd">25472</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013228_LG_1_AdditionalIndexMember_11YR"
      id="ixv-37924">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2035 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266084"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266085"
      unitRef="usd">11497</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266086"
      unitRef="usd">13009</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266087"
      unitRef="usd">13661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266088"
      unitRef="usd">12673</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266089"
      unitRef="usd">18301</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266090"
      unitRef="usd">19072</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266091"
      unitRef="usd">17718</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266092"
      unitRef="usd">20612</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266093"
      unitRef="usd">21881</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266094"
      unitRef="usd">25184</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013228_LG_2_AdditionalIndexMember_11YR"
      id="ixv-37973">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266095"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266096"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266097"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266098"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266099"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266100"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266101"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266102"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266103"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266104"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013228_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266105"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013228_ClassMember" id="ixv-38074">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

16.74%

6.51%

9.80%


Fidelity Freedom 2035 Composite Index&#x2120;

15.09%


6.59%


9.68%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266106"
      unitRef="pure">0.1674</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266107"
      unitRef="pure">0.0651</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266108"
      unitRef="pure">0.0980</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266109"
      unitRef="pure">0.1509</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266110"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266111"
      unitRef="pure">0.0968</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266112"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266113"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013228_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266114"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013228_ClassMember" id="ixv-38144">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013228_ClassMember" id="ixv-38156">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013228_ClassMember" id="ixv-38160">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013228_ClassMember" id="ixv-38166">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,055,791,505&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,106,418&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013228_InstantMember"
      decimals="0"
      id="ixv-266115"
      unitRef="usd">3055791505</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013228_InstantMember"
      decimals="INF"
      id="ixv-266116"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013228_ClassMember"
      decimals="0"
      id="ixv-266117"
      unitRef="usd">17106418</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013228_ClassMember"
      decimals="INF"
      id="ixv-266118"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013228_ClassMember" id="ixv-38241">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

39.7


International Equity Funds

30.9


Bond Funds

29.0


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 39.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 30.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 29.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013228_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266119"
      unitRef="pure">0.397</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266120"
      unitRef="pure">0.309</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266121"
      unitRef="pure">0.290</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266122"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013228_ClassMember" id="ixv-38332">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

17.0


&#160;


Fidelity Series Large Cap Stock Fund

8.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.9


&#160;


Fidelity Advisor Series Equity Growth Fund

5.9


&#160;


Fidelity Series Overseas Fund

5.6


&#160;


Fidelity Series International Value Fund

5.6


&#160;


Fidelity Series International Growth Fund

5.6


&#160;


Fidelity Series Opportunistic Insights Fund

5.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

4.6


&#160;


Fidelity Series Value Discovery Fund

4.6


&#160;


&#160;

70.0

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013228_TH_0_Member"
      decimals="INF"
      id="ixv-266123"
      unitRef="pure">0.170</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_1_Member"
      decimals="INF"
      id="ixv-266124"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_2_Member"
      decimals="INF"
      id="ixv-266125"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_3_Member"
      decimals="INF"
      id="ixv-266126"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_4_Member"
      decimals="INF"
      id="ixv-266127"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_5_Member"
      decimals="INF"
      id="ixv-266128"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_6_Member"
      decimals="INF"
      id="ixv-266129"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_7_Member"
      decimals="INF"
      id="ixv-266130"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_8_Member"
      decimals="INF"
      id="ixv-266131"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013228_TH_9_Member"
      decimals="INF"
      id="ixv-266132"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013228_ClassMember" id="ixv-38457">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013228_ClassMember" id="ixv-38463">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013228_ClassMember" id="ixv-38467">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013228_ClassMember" id="ixv-38470">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013228_ClassMember" id="ixv-38474">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013228_ClassMember" id="ixv-38485">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013228_ClassMember" id="ixv-38492">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-38548">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013226_ClassMember" id="ixv-38552">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013226_ClassMember" id="ixv-38563">Fidelity Advisor Freedom&#xae; 2035 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013226_ClassMember" id="ixv-38566">Fidelity Advisor Freedom&#xae; 2035 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013226_ClassMember" id="ixv-38570">FCTHX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013226_ClassMember" id="ixv-38589">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2035 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013226_ClassMember" id="ixv-38591">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013226_ClassMember" id="ixv-38596">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013226_ClassMember" id="ixv-38598">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013226_ClassMember" id="ixv-38601">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013226_ClassMember" id="ixv-38604">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013226_ClassMember" id="ixv-38611">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;177&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.65&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013226_ClassMember"
      decimals="0"
      id="ixv-266133"
      unitRef="usd">177</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013226_ClassMember"
      decimals="INF"
      id="ixv-266134"
      unitRef="pure">0.0165</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013226_ClassMember" id="ixv-38653">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013226_ClassMember" id="ixv-38687">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,469


$12,891


$13,200


$11,901


$17,686


$17,894


$16,487


$19,108


$20,089


$23,381



Fidelity Freedom 2035 Composite Index&#x2120;


$10,000

$11,497


$13,009


$13,661


$12,673


$18,301


$19,072


$17,718


$20,612


$21,881


$25,184



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013226_LG_ClassMember_11YR" id="ixv-38706">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266135"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266136"
      unitRef="usd">11469</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266137"
      unitRef="usd">12891</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266138"
      unitRef="usd">13200</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266139"
      unitRef="usd">11901</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266140"
      unitRef="usd">17686</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266141"
      unitRef="usd">17894</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266142"
      unitRef="usd">16487</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266143"
      unitRef="usd">19108</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266144"
      unitRef="usd">20089</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266145"
      unitRef="usd">23381</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013226_LG_1_AdditionalIndexMember_11YR"
      id="ixv-38755">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2035 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266146"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266147"
      unitRef="usd">11497</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266148"
      unitRef="usd">13009</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266149"
      unitRef="usd">13661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266150"
      unitRef="usd">12673</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266151"
      unitRef="usd">18301</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266152"
      unitRef="usd">19072</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266153"
      unitRef="usd">17718</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266154"
      unitRef="usd">20612</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266155"
      unitRef="usd">21881</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266156"
      unitRef="usd">25184</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013226_LG_2_AdditionalIndexMember_11YR"
      id="ixv-38804">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266157"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266158"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266159"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266160"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266161"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266162"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266163"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266164"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266165"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266166"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013226_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266167"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013226_ClassMember" id="ixv-38905">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

14.55%

5.45%


8.86%


Class C

15.55%

5.45%

8.86%


Fidelity Freedom 2035 Composite Index&#x2120;

15.09%


6.59%


9.68%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_ClassMember_1YR"
      decimals="INF"
      id="ixv-266168"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_ClassMember_5YR"
      decimals="INF"
      id="ixv-266169"
      unitRef="pure">0.0545</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_ClassMember_10YR"
      decimals="INF"
      id="ixv-266170"
      unitRef="pure">0.0886</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266171"
      unitRef="pure">0.1555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266172"
      unitRef="pure">0.0545</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266173"
      unitRef="pure">0.0886</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266174"
      unitRef="pure">0.1509</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266175"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266176"
      unitRef="pure">0.0968</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266177"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266178"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013226_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266179"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013226_ClassMember" id="ixv-38991">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013226_ClassMember" id="ixv-39003">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013226_ClassMember" id="ixv-39007">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013226_ClassMember" id="ixv-39013">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,055,791,505&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,106,418&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013226_InstantMember"
      decimals="0"
      id="ixv-266180"
      unitRef="usd">3055791505</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013226_InstantMember"
      decimals="INF"
      id="ixv-266181"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013226_ClassMember"
      decimals="0"
      id="ixv-266182"
      unitRef="usd">17106418</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013226_ClassMember"
      decimals="INF"
      id="ixv-266183"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013226_ClassMember" id="ixv-39088">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

39.7


International Equity Funds

30.9


Bond Funds

29.0


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 39.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 30.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 29.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013226_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266184"
      unitRef="pure">0.397</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266185"
      unitRef="pure">0.309</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266186"
      unitRef="pure">0.290</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266187"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013226_ClassMember" id="ixv-39179">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

17.0


&#160;


Fidelity Series Large Cap Stock Fund

8.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.9


&#160;


Fidelity Advisor Series Equity Growth Fund

5.9


&#160;


Fidelity Series Overseas Fund

5.6


&#160;


Fidelity Series International Value Fund

5.6


&#160;


Fidelity Series International Growth Fund

5.6


&#160;


Fidelity Series Opportunistic Insights Fund

5.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

4.6


&#160;


Fidelity Series Value Discovery Fund

4.6


&#160;


&#160;

70.0

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013226_TH_0_Member"
      decimals="INF"
      id="ixv-266188"
      unitRef="pure">0.170</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_1_Member"
      decimals="INF"
      id="ixv-266189"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_2_Member"
      decimals="INF"
      id="ixv-266190"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_3_Member"
      decimals="INF"
      id="ixv-266191"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_4_Member"
      decimals="INF"
      id="ixv-266192"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_5_Member"
      decimals="INF"
      id="ixv-266193"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_6_Member"
      decimals="INF"
      id="ixv-266194"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_7_Member"
      decimals="INF"
      id="ixv-266195"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_8_Member"
      decimals="INF"
      id="ixv-266196"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013226_TH_9_Member"
      decimals="INF"
      id="ixv-266197"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013226_ClassMember" id="ixv-39304">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013226_ClassMember" id="ixv-39310">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013226_ClassMember" id="ixv-39314">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013226_ClassMember" id="ixv-39317">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013226_ClassMember" id="ixv-39321">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013226_ClassMember" id="ixv-39332">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013226_ClassMember" id="ixv-39339">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-39395">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013224_ClassMember" id="ixv-39399">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013224_ClassMember" id="ixv-39410">Fidelity Advisor Freedom&#xae; 2035 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013224_ClassMember" id="ixv-39413">Fidelity Advisor Freedom&#xae; 2035 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013224_ClassMember" id="ixv-39417">FATHX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013224_ClassMember" id="ixv-39436">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2035 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013224_ClassMember" id="ixv-39438">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013224_ClassMember" id="ixv-39443">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013224_ClassMember" id="ixv-39445">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013224_ClassMember" id="ixv-39448">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013224_ClassMember" id="ixv-39451">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013224_ClassMember" id="ixv-39458">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;97&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.90&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013224_ClassMember"
      decimals="0"
      id="ixv-266198"
      unitRef="usd">97</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013224_ClassMember"
      decimals="INF"
      id="ixv-266199"
      unitRef="pure">0.0090</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013224_ClassMember" id="ixv-39500">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013224_ClassMember" id="ixv-39534">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,887


$12,330


$12,723


$11,559


$17,307


$17,644


$16,377


$19,135


$20,118


$23,413



Fidelity Freedom 2035 Composite Index&#x2120;


$10,000

$11,497


$13,009


$13,661


$12,673


$18,301


$19,072


$17,718


$20,612


$21,881


$25,184



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013224_LG_ClassMember_11YR" id="ixv-39555">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266200"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266201"
      unitRef="usd">10887</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266202"
      unitRef="usd">12330</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266203"
      unitRef="usd">12723</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266204"
      unitRef="usd">11559</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266205"
      unitRef="usd">17307</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266206"
      unitRef="usd">17644</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266207"
      unitRef="usd">16377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266208"
      unitRef="usd">19135</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266209"
      unitRef="usd">20118</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266210"
      unitRef="usd">23413</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013224_LG_1_AdditionalIndexMember_11YR"
      id="ixv-39604">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2035 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266211"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266212"
      unitRef="usd">11497</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266213"
      unitRef="usd">13009</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266214"
      unitRef="usd">13661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266215"
      unitRef="usd">12673</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266216"
      unitRef="usd">18301</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266217"
      unitRef="usd">19072</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266218"
      unitRef="usd">17718</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266219"
      unitRef="usd">20612</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266220"
      unitRef="usd">21881</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266221"
      unitRef="usd">25184</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013224_LG_2_AdditionalIndexMember_11YR"
      id="ixv-39653">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266222"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266223"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266224"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266225"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266226"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266227"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266228"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266229"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266230"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266231"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013224_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266232"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013224_ClassMember" id="ixv-39754">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

9.69%

4.98%


8.88%


Class A (without 5.75% sales charge)

16.38%

6.23%

9.53%


Fidelity Freedom 2035 Composite Index&#x2120;

15.09%


6.59%


9.68%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_ClassMember_1YR"
      decimals="INF"
      id="ixv-266233"
      unitRef="pure">0.0969</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_ClassMember_5YR"
      decimals="INF"
      id="ixv-266234"
      unitRef="pure">0.0498</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_ClassMember_10YR"
      decimals="INF"
      id="ixv-266235"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266236"
      unitRef="pure">0.1638</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266237"
      unitRef="pure">0.0623</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266238"
      unitRef="pure">0.0953</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266239"
      unitRef="pure">0.1509</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266240"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266241"
      unitRef="pure">0.0968</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266242"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266243"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013224_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266244"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013224_ClassMember" id="ixv-39839">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013224_ClassMember" id="ixv-39851">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013224_ClassMember" id="ixv-39855">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013224_ClassMember" id="ixv-39861">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;3,055,791,505&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;17,106,418&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013224_InstantMember"
      decimals="0"
      id="ixv-266245"
      unitRef="usd">3055791505</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013224_InstantMember"
      decimals="INF"
      id="ixv-266246"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013224_ClassMember"
      decimals="0"
      id="ixv-266247"
      unitRef="usd">17106418</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013224_ClassMember"
      decimals="INF"
      id="ixv-266248"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013224_ClassMember" id="ixv-39936">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

39.7


International Equity Funds

30.9


Bond Funds

29.0


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 39.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 30.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 29.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013224_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266249"
      unitRef="pure">0.397</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266250"
      unitRef="pure">0.309</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266251"
      unitRef="pure">0.290</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266252"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013224_ClassMember" id="ixv-40027">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

17.0


&#160;


Fidelity Series Large Cap Stock Fund

8.1


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.9


&#160;


Fidelity Advisor Series Equity Growth Fund

5.9


&#160;


Fidelity Series Overseas Fund

5.6


&#160;


Fidelity Series International Value Fund

5.6


&#160;


Fidelity Series International Growth Fund

5.6


&#160;


Fidelity Series Opportunistic Insights Fund

5.1


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

4.6


&#160;


Fidelity Series Value Discovery Fund

4.6


&#160;


&#160;

70.0

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013224_TH_0_Member"
      decimals="INF"
      id="ixv-266253"
      unitRef="pure">0.170</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_1_Member"
      decimals="INF"
      id="ixv-266254"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_2_Member"
      decimals="INF"
      id="ixv-266255"
      unitRef="pure">0.079</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_3_Member"
      decimals="INF"
      id="ixv-266256"
      unitRef="pure">0.059</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_4_Member"
      decimals="INF"
      id="ixv-266257"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_5_Member"
      decimals="INF"
      id="ixv-266258"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_6_Member"
      decimals="INF"
      id="ixv-266259"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_7_Member"
      decimals="INF"
      id="ixv-266260"
      unitRef="pure">0.051</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_8_Member"
      decimals="INF"
      id="ixv-266261"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013224_TH_9_Member"
      decimals="INF"
      id="ixv-266262"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013224_ClassMember" id="ixv-40152">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013224_ClassMember" id="ixv-40158">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013224_ClassMember" id="ixv-40162">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013224_ClassMember" id="ixv-40165">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013224_ClassMember" id="ixv-40169">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013224_ClassMember" id="ixv-40180">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013224_ClassMember" id="ixv-40187">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-40243">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182217_ClassMember" id="ixv-40247">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182217_ClassMember" id="ixv-40258">Fidelity Advisor Freedom&#xae; 2030 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182217_ClassMember" id="ixv-40261">Fidelity Advisor Freedom&#xae; 2030 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182217_ClassMember" id="ixv-40265">FDGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182217_ClassMember" id="ixv-40284">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2030 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182217_ClassMember" id="ixv-40286">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182217_ClassMember" id="ixv-40291">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182217_ClassMember" id="ixv-40293">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182217_ClassMember" id="ixv-40296">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182217_ClassMember" id="ixv-40299">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182217_ClassMember" id="ixv-40306">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;39&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.36&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182217_ClassMember"
      decimals="0"
      id="ixv-266263"
      unitRef="usd">39</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182217_ClassMember"
      decimals="INF"
      id="ixv-266264"
      unitRef="pure">0.0036</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182217_ClassMember" id="ixv-40348">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182217_ClassMember" id="ixv-40382">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,790


$11,204


$10,514


$14,839


$15,070


$14,090


$16,115


$17,028


$19,625



Fidelity Freedom 2030 Composite Index&#x2120;


$10,000

$10,779


$11,330


$10,842


$14,701


$15,123


$14,099


$16,025


$16,972


$19,263



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182217_LG_ClassMember_10YR" id="ixv-40401">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266265"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266266"
      unitRef="usd">10790</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266267"
      unitRef="usd">11204</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266268"
      unitRef="usd">10514</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266269"
      unitRef="usd">14839</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266270"
      unitRef="usd">15070</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266271"
      unitRef="usd">14090</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266272"
      unitRef="usd">16115</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266273"
      unitRef="usd">17028</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266274"
      unitRef="usd">19625</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182217_LG_1_AdditionalIndexMember_10YR"
      id="ixv-40446">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2030 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266275"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266276"
      unitRef="usd">10779</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266277"
      unitRef="usd">11330</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266278"
      unitRef="usd">10842</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266279"
      unitRef="usd">14701</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266280"
      unitRef="usd">15123</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266281"
      unitRef="usd">14099</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266282"
      unitRef="usd">16025</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266283"
      unitRef="usd">16972</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266284"
      unitRef="usd">19263</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182217_LG_2_AdditionalIndexMember_10YR"
      id="ixv-40491">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266285"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266286"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266287"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266288"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266289"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266290"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266291"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266292"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266293"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182217_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266294"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182217_ClassMember" id="ixv-40585">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

15.25%

5.75%

7.94%


Fidelity Freedom 2030 Composite Index&#x2120;

13.50%


5.55%


7.71%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266295"
      unitRef="pure">0.1525</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266296"
      unitRef="pure">0.0575</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-266297"
      unitRef="pure">0.0794</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266298"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266299"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-266300"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266301"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266302"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182217_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-266303"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182217_Perf_2017-06-06_ClassMember"
      id="ixv-40654">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182217_ClassMember" id="ixv-40664">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182217_ClassMember" id="ixv-40676">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182217_ClassMember" id="ixv-40680">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182217_ClassMember" id="ixv-40686">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,981,641,828&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,289,707&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182217_InstantMember"
      decimals="0"
      id="ixv-266304"
      unitRef="usd">2981641828</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182217_InstantMember"
      decimals="INF"
      id="ixv-266305"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182217_ClassMember"
      decimals="0"
      id="ixv-266306"
      unitRef="usd">16289707</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182217_ClassMember"
      decimals="INF"
      id="ixv-266307"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182217_ClassMember" id="ixv-40761">
&#160;
&#160;
&#160;
&#160;
Bond Funds

37.0


Domestic Equity Funds

34.9


International Equity Funds

27.7


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 37.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 34.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 27.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182217_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266308"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266309"
      unitRef="pure">0.349</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266310"
      unitRef="pure">0.277</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266311"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182217_ClassMember" id="ixv-40852">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

20.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.1


&#160;


Fidelity Series Large Cap Stock Fund

7.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.3


&#160;


Fidelity Advisor Series Equity Growth Fund

5.2


&#160;


Fidelity Series Overseas Fund

5.0


&#160;


Fidelity Series International Value Fund

5.0


&#160;


Fidelity Series International Growth Fund

5.0


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Opportunistic Insights Fund

4.5


&#160;


&#160;

70.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182217_TH_0_Member"
      decimals="INF"
      id="ixv-266312"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_1_Member"
      decimals="INF"
      id="ixv-266313"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_2_Member"
      decimals="INF"
      id="ixv-266314"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_3_Member"
      decimals="INF"
      id="ixv-266315"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_4_Member"
      decimals="INF"
      id="ixv-266316"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_5_Member"
      decimals="INF"
      id="ixv-266317"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_6_Member"
      decimals="INF"
      id="ixv-266318"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_7_Member"
      decimals="INF"
      id="ixv-266319"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_8_Member"
      decimals="INF"
      id="ixv-266320"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182217_TH_9_Member"
      decimals="INF"
      id="ixv-266321"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182217_ClassMember" id="ixv-40977">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182217_ClassMember" id="ixv-40983">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182217_ClassMember" id="ixv-40987">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182217_ClassMember" id="ixv-40990">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182217_ClassMember" id="ixv-40994">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182217_ClassMember" id="ixv-41005">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-41063">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205061_ClassMember" id="ixv-41067">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205061_ClassMember" id="ixv-41078">Fidelity Advisor Freedom&#xae; 2030 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205061_ClassMember" id="ixv-41081">Fidelity Advisor Freedom&#xae; 2030 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205061_ClassMember" id="ixv-41085">FIJNX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205061_ClassMember" id="ixv-41104">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2030 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205061_ClassMember" id="ixv-41106">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205061_ClassMember" id="ixv-41111">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205061_ClassMember" id="ixv-41113">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205061_ClassMember" id="ixv-41116">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205061_ClassMember" id="ixv-41119">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205061_ClassMember" id="ixv-41126">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;59&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.55&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205061_ClassMember"
      decimals="0"
      id="ixv-266322"
      unitRef="usd">59</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205061_ClassMember"
      decimals="INF"
      id="ixv-266323"
      unitRef="pure">0.0055</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205061_ClassMember" id="ixv-41168">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205061_ClassMember" id="ixv-41202">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$9,991


$9,364


$13,203


$13,385


$12,500


$14,276


$15,045


$17,308



Fidelity Freedom 2030 Composite Index&#x2120;


$10,000

$10,006


$9,575


$12,983


$13,355


$12,451


$14,152


$14,989


$17,012



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205061_LG_ClassMember_9YR" id="ixv-41221">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266324"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266325"
      unitRef="usd">9991</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266326"
      unitRef="usd">9364</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266327"
      unitRef="usd">13203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266328"
      unitRef="usd">13385</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266329"
      unitRef="usd">12500</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266330"
      unitRef="usd">14276</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266331"
      unitRef="usd">15045</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266332"
      unitRef="usd">17308</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205061_LG_1_AdditionalIndexMember_9YR"
      id="ixv-41262">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2030 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266333"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266334"
      unitRef="usd">10006</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266335"
      unitRef="usd">9575</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266336"
      unitRef="usd">12983</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266337"
      unitRef="usd">13355</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266338"
      unitRef="usd">12451</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266339"
      unitRef="usd">14152</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266340"
      unitRef="usd">14989</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266341"
      unitRef="usd">17012</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205061_LG_2_AdditionalIndexMember_9YR"
      id="ixv-41303">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266342"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266343"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266344"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266345"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266346"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266347"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266348"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266349"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205061_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266350"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205061_ClassMember" id="ixv-41390">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

15.05%

5.56%

7.59%


Fidelity Freedom 2030 Composite Index&#x2120;

13.50%


5.55%


7.34%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266351"
      unitRef="pure">0.1505</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266352"
      unitRef="pure">0.0556</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-266353"
      unitRef="pure">0.0759</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266354"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266355"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-266356"
      unitRef="pure">0.0734</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266357"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266358"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205061_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-266359"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205061_Perf_2018-10-02_ClassMember"
      id="ixv-41459">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205061_ClassMember" id="ixv-41469">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205061_ClassMember" id="ixv-41481">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205061_ClassMember" id="ixv-41485">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205061_ClassMember" id="ixv-41491">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,981,641,828&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,289,707&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205061_InstantMember"
      decimals="0"
      id="ixv-266360"
      unitRef="usd">2981641828</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205061_InstantMember"
      decimals="INF"
      id="ixv-266361"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205061_ClassMember"
      decimals="0"
      id="ixv-266362"
      unitRef="usd">16289707</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205061_ClassMember"
      decimals="INF"
      id="ixv-266363"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205061_ClassMember" id="ixv-41566">
&#160;
&#160;
&#160;
&#160;
Bond Funds

37.0


Domestic Equity Funds

34.9


International Equity Funds

27.7


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 37.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 34.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 27.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205061_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266364"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266365"
      unitRef="pure">0.349</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266366"
      unitRef="pure">0.277</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266367"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205061_ClassMember" id="ixv-41657">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

20.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.1


&#160;


Fidelity Series Large Cap Stock Fund

7.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.3


&#160;


Fidelity Advisor Series Equity Growth Fund

5.2


&#160;


Fidelity Series Overseas Fund

5.0


&#160;


Fidelity Series International Value Fund

5.0


&#160;


Fidelity Series International Growth Fund

5.0


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Opportunistic Insights Fund

4.5


&#160;


&#160;

70.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205061_TH_0_Member"
      decimals="INF"
      id="ixv-266368"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_1_Member"
      decimals="INF"
      id="ixv-266369"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_2_Member"
      decimals="INF"
      id="ixv-266370"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_3_Member"
      decimals="INF"
      id="ixv-266371"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_4_Member"
      decimals="INF"
      id="ixv-266372"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_5_Member"
      decimals="INF"
      id="ixv-266373"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_6_Member"
      decimals="INF"
      id="ixv-266374"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_7_Member"
      decimals="INF"
      id="ixv-266375"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_8_Member"
      decimals="INF"
      id="ixv-266376"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205061_TH_9_Member"
      decimals="INF"
      id="ixv-266377"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205061_ClassMember" id="ixv-41782">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205061_ClassMember" id="ixv-41788">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205061_ClassMember" id="ixv-41792">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205061_ClassMember" id="ixv-41795">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205061_ClassMember" id="ixv-41799">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205061_ClassMember" id="ixv-41810">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-41868">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013222_ClassMember" id="ixv-41872">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013222_ClassMember" id="ixv-41883">Fidelity Advisor Freedom&#xae; 2030 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013222_ClassMember" id="ixv-41886">Fidelity Advisor Freedom&#xae; 2030 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013222_ClassMember" id="ixv-41890">FTFEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013222_ClassMember" id="ixv-41909">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2030 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013222_ClassMember" id="ixv-41911">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013222_ClassMember" id="ixv-41916">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013222_ClassMember" id="ixv-41918">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013222_ClassMember" id="ixv-41921">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013222_ClassMember" id="ixv-41924">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013222_ClassMember" id="ixv-41931">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;119&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.11&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013222_ClassMember"
      decimals="0"
      id="ixv-266378"
      unitRef="usd">119</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013222_ClassMember"
      decimals="INF"
      id="ixv-266379"
      unitRef="pure">0.0111</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013222_ClassMember" id="ixv-41973">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013222_ClassMember" id="ixv-42007">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$10,976


$12,242


$12,623


$11,760


$16,483


$16,616


$15,419


$17,509


$18,351


$20,986



Fidelity Freedom 2030 Composite Index&#x2120;


$10,000

$11,323


$12,634


$13,279


$12,708


$17,230


$17,724


$16,525


$18,782


$19,892


$22,577



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013222_LG_ClassMember_11YR" id="ixv-42028">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266380"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266381"
      unitRef="usd">10976</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266382"
      unitRef="usd">12242</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266383"
      unitRef="usd">12623</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266384"
      unitRef="usd">11760</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266385"
      unitRef="usd">16483</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266386"
      unitRef="usd">16616</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266387"
      unitRef="usd">15419</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266388"
      unitRef="usd">17509</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266389"
      unitRef="usd">18351</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266390"
      unitRef="usd">20986</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013222_LG_1_AdditionalIndexMember_11YR"
      id="ixv-42077">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2030 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266391"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266392"
      unitRef="usd">11323</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266393"
      unitRef="usd">12634</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266394"
      unitRef="usd">13279</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266395"
      unitRef="usd">12708</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266396"
      unitRef="usd">17230</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266397"
      unitRef="usd">17724</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266398"
      unitRef="usd">16525</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266399"
      unitRef="usd">18782</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266400"
      unitRef="usd">19892</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266401"
      unitRef="usd">22577</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013222_LG_2_AdditionalIndexMember_11YR"
      id="ixv-42126">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266402"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266403"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266404"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266405"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266406"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266407"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266408"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266409"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266410"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266411"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013222_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266412"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013222_ClassMember" id="ixv-42227">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

10.36%

4.20%


7.69%


Class M (without 3.50% sales charge)

14.36%

4.95%

8.08%


Fidelity Freedom 2030 Composite Index&#x2120;

13.50%


5.55%


8.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_ClassMember_1YR"
      decimals="INF"
      id="ixv-266413"
      unitRef="pure">0.1036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_ClassMember_5YR"
      decimals="INF"
      id="ixv-266414"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_ClassMember_10YR"
      decimals="INF"
      id="ixv-266415"
      unitRef="pure">0.0769</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266416"
      unitRef="pure">0.1436</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266417"
      unitRef="pure">0.0495</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266418"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266419"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266420"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266421"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266422"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266423"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013222_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266424"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013222_ClassMember" id="ixv-42312">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013222_ClassMember" id="ixv-42324">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013222_ClassMember" id="ixv-42328">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013222_ClassMember" id="ixv-42334">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,981,641,828&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,289,707&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013222_InstantMember"
      decimals="0"
      id="ixv-266425"
      unitRef="usd">2981641828</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013222_InstantMember"
      decimals="INF"
      id="ixv-266426"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013222_ClassMember"
      decimals="0"
      id="ixv-266427"
      unitRef="usd">16289707</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013222_ClassMember"
      decimals="INF"
      id="ixv-266428"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013222_ClassMember" id="ixv-42409">
&#160;
&#160;
&#160;
&#160;
Bond Funds

37.0


Domestic Equity Funds

34.9


International Equity Funds

27.7


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 37.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 34.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 27.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013222_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266429"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266430"
      unitRef="pure">0.349</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266431"
      unitRef="pure">0.277</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266432"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013222_ClassMember" id="ixv-42500">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

20.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.1


&#160;


Fidelity Series Large Cap Stock Fund

7.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.3


&#160;


Fidelity Advisor Series Equity Growth Fund

5.2


&#160;


Fidelity Series Overseas Fund

5.0


&#160;


Fidelity Series International Value Fund

5.0


&#160;


Fidelity Series International Growth Fund

5.0


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Opportunistic Insights Fund

4.5


&#160;


&#160;

70.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013222_TH_0_Member"
      decimals="INF"
      id="ixv-266433"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_1_Member"
      decimals="INF"
      id="ixv-266434"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_2_Member"
      decimals="INF"
      id="ixv-266435"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_3_Member"
      decimals="INF"
      id="ixv-266436"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_4_Member"
      decimals="INF"
      id="ixv-266437"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_5_Member"
      decimals="INF"
      id="ixv-266438"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_6_Member"
      decimals="INF"
      id="ixv-266439"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_7_Member"
      decimals="INF"
      id="ixv-266440"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_8_Member"
      decimals="INF"
      id="ixv-266441"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013222_TH_9_Member"
      decimals="INF"
      id="ixv-266442"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013222_ClassMember" id="ixv-42625">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013222_ClassMember" id="ixv-42631">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013222_ClassMember" id="ixv-42635">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013222_ClassMember" id="ixv-42638">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013222_ClassMember" id="ixv-42642">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013222_ClassMember" id="ixv-42653">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013222_ClassMember" id="ixv-42660">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-42716">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013223_ClassMember" id="ixv-42720">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013223_ClassMember" id="ixv-42731">Fidelity Advisor Freedom&#xae; 2030 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013223_ClassMember" id="ixv-42734">Fidelity Advisor Freedom&#xae; 2030 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013223_ClassMember" id="ixv-42738">FEFIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013223_ClassMember" id="ixv-42757">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2030 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013223_ClassMember" id="ixv-42759">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013223_ClassMember" id="ixv-42764">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013223_ClassMember" id="ixv-42766">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013223_ClassMember" id="ixv-42769">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013223_ClassMember" id="ixv-42772">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013223_ClassMember" id="ixv-42779">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;66&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.61&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013223_ClassMember"
      decimals="0"
      id="ixv-266443"
      unitRef="usd">66</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013223_ClassMember"
      decimals="INF"
      id="ixv-266444"
      unitRef="pure">0.0061</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013223_ClassMember" id="ixv-42821">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013223_ClassMember" id="ixv-42855">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,438


$12,815


$13,282


$12,442


$17,514


$17,754


$16,555


$18,897


$19,892


$22,878



Fidelity Freedom 2030 Composite Index&#x2120;


$10,000

$11,323


$12,634


$13,279


$12,708


$17,230


$17,724


$16,525


$18,782


$19,892


$22,577



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013223_LG_ClassMember_11YR" id="ixv-42874">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266445"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266446"
      unitRef="usd">11438</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266447"
      unitRef="usd">12815</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266448"
      unitRef="usd">13282</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266449"
      unitRef="usd">12442</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266450"
      unitRef="usd">17514</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266451"
      unitRef="usd">17754</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266452"
      unitRef="usd">16555</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266453"
      unitRef="usd">18897</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266454"
      unitRef="usd">19892</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266455"
      unitRef="usd">22878</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013223_LG_1_AdditionalIndexMember_11YR"
      id="ixv-42923">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2030 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266456"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266457"
      unitRef="usd">11323</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266458"
      unitRef="usd">12634</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266459"
      unitRef="usd">13279</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266460"
      unitRef="usd">12708</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266461"
      unitRef="usd">17230</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266462"
      unitRef="usd">17724</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266463"
      unitRef="usd">16525</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266464"
      unitRef="usd">18782</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266465"
      unitRef="usd">19892</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266466"
      unitRef="usd">22577</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013223_LG_2_AdditionalIndexMember_11YR"
      id="ixv-42972">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266467"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266468"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266469"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266470"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266471"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266472"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266473"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266474"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266475"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266476"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013223_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266477"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013223_ClassMember" id="ixv-43073">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

15.01%

5.49%

8.63%


Fidelity Freedom 2030 Composite Index&#x2120;

13.50%


5.55%


8.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013223_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266478"
      unitRef="pure">0.1501</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013223_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266479"
      unitRef="pure">0.0549</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013223_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266480"
      unitRef="pure">0.0863</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013223_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266481"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013223_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266482"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="ixv-266483"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="ixv-266484"
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    <oef:AvgAnnlRtrPct
      contextRef="C000013223_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266485"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013223_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266486"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013223_ClassMember" id="ixv-43143">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013223_ClassMember" id="ixv-43155">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013223_ClassMember" id="ixv-43159">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013223_ClassMember" id="ixv-43165">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,981,641,828&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,289,707&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013223_InstantMember"
      decimals="0"
      id="ixv-266487"
      unitRef="usd">2981641828</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013223_InstantMember"
      decimals="INF"
      id="ixv-266488"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013223_ClassMember"
      decimals="0"
      id="ixv-266489"
      unitRef="usd">16289707</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013223_ClassMember"
      decimals="INF"
      id="ixv-266490"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013223_ClassMember" id="ixv-43240">
&#160;
&#160;
&#160;
&#160;
Bond Funds

37.0


Domestic Equity Funds

34.9


International Equity Funds

27.7


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 37.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 34.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 27.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013223_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266491"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266492"
      unitRef="pure">0.349</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266493"
      unitRef="pure">0.277</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266494"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013223_ClassMember" id="ixv-43331">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

20.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.1


&#160;


Fidelity Series Large Cap Stock Fund

7.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.3


&#160;


Fidelity Advisor Series Equity Growth Fund

5.2


&#160;


Fidelity Series Overseas Fund

5.0


&#160;


Fidelity Series International Value Fund

5.0


&#160;


Fidelity Series International Growth Fund

5.0


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Opportunistic Insights Fund

4.5


&#160;


&#160;

70.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013223_TH_0_Member"
      decimals="INF"
      id="ixv-266495"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_1_Member"
      decimals="INF"
      id="ixv-266496"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_2_Member"
      decimals="INF"
      id="ixv-266497"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_3_Member"
      decimals="INF"
      id="ixv-266498"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_4_Member"
      decimals="INF"
      id="ixv-266499"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_5_Member"
      decimals="INF"
      id="ixv-266500"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_6_Member"
      decimals="INF"
      id="ixv-266501"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_7_Member"
      decimals="INF"
      id="ixv-266502"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_8_Member"
      decimals="INF"
      id="ixv-266503"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013223_TH_9_Member"
      decimals="INF"
      id="ixv-266504"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013223_ClassMember" id="ixv-43456">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013223_ClassMember" id="ixv-43462">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013223_ClassMember" id="ixv-43466">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013223_ClassMember" id="ixv-43469">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013223_ClassMember" id="ixv-43473">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013223_ClassMember" id="ixv-43484">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013223_ClassMember" id="ixv-43491">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-43547">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013221_ClassMember" id="ixv-43551">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013221_ClassMember" id="ixv-43562">Fidelity Advisor Freedom&#xae; 2030 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013221_ClassMember" id="ixv-43565">Fidelity Advisor Freedom&#xae; 2030 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013221_ClassMember" id="ixv-43569">FCFEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013221_ClassMember" id="ixv-43588">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2030 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013221_ClassMember" id="ixv-43590">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013221_ClassMember" id="ixv-43595">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013221_ClassMember" id="ixv-43597">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013221_ClassMember" id="ixv-43600">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013221_ClassMember" id="ixv-43603">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013221_ClassMember" id="ixv-43610">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;173&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.61&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013221_ClassMember"
      decimals="0"
      id="ixv-266505"
      unitRef="usd">173</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013221_ClassMember"
      decimals="INF"
      id="ixv-266506"
      unitRef="pure">0.0161</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013221_ClassMember" id="ixv-43652">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013221_ClassMember" id="ixv-43686">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,321


$12,563


$12,886


$11,952


$16,663


$16,712


$15,440


$17,443


$18,331


$21,020



Fidelity Freedom 2030 Composite Index&#x2120;


$10,000

$11,323


$12,634


$13,279


$12,708


$17,230


$17,724


$16,525


$18,782


$19,892


$22,577



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013221_LG_ClassMember_11YR" id="ixv-43705">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266507"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266508"
      unitRef="usd">11321</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266509"
      unitRef="usd">12563</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266510"
      unitRef="usd">12886</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266511"
      unitRef="usd">11952</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266512"
      unitRef="usd">16663</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266513"
      unitRef="usd">16712</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266514"
      unitRef="usd">15440</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266515"
      unitRef="usd">17443</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266516"
      unitRef="usd">18331</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266517"
      unitRef="usd">21020</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013221_LG_1_AdditionalIndexMember_11YR"
      id="ixv-43754">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2030 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266518"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266519"
      unitRef="usd">11323</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266520"
      unitRef="usd">12634</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266521"
      unitRef="usd">13279</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266522"
      unitRef="usd">12708</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266523"
      unitRef="usd">17230</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266524"
      unitRef="usd">17724</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266525"
      unitRef="usd">16525</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266526"
      unitRef="usd">18782</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266527"
      unitRef="usd">19892</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266528"
      unitRef="usd">22577</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013221_LG_2_AdditionalIndexMember_11YR"
      id="ixv-43803">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266529"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266530"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266531"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266532"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266533"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266534"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266535"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266536"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266537"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266538"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013221_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266539"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013221_ClassMember" id="ixv-43904">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

12.80%

4.42%


7.71%


Class C

13.80%

4.42%

7.71%


Fidelity Freedom 2030 Composite Index&#x2120;

13.50%


5.55%


8.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_ClassMember_1YR"
      decimals="INF"
      id="ixv-266540"
      unitRef="pure">0.1280</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_ClassMember_5YR"
      decimals="INF"
      id="ixv-266541"
      unitRef="pure">0.0442</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_ClassMember_10YR"
      decimals="INF"
      id="ixv-266542"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266543"
      unitRef="pure">0.1380</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266544"
      unitRef="pure">0.0442</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266545"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266546"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266547"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266548"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266549"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266550"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013221_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266551"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013221_ClassMember" id="ixv-43990">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013221_ClassMember" id="ixv-44002">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013221_ClassMember" id="ixv-44006">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013221_ClassMember" id="ixv-44012">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,981,641,828&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,289,707&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013221_InstantMember"
      decimals="0"
      id="ixv-266552"
      unitRef="usd">2981641828</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013221_InstantMember"
      decimals="INF"
      id="ixv-266553"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013221_ClassMember"
      decimals="0"
      id="ixv-266554"
      unitRef="usd">16289707</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013221_ClassMember"
      decimals="INF"
      id="ixv-266555"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013221_ClassMember" id="ixv-44087">
&#160;
&#160;
&#160;
&#160;
Bond Funds

37.0


Domestic Equity Funds

34.9


International Equity Funds

27.7


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 37.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 34.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 27.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013221_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266556"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266557"
      unitRef="pure">0.349</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266558"
      unitRef="pure">0.277</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266559"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013221_ClassMember" id="ixv-44178">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

20.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.1


&#160;


Fidelity Series Large Cap Stock Fund

7.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.3


&#160;


Fidelity Advisor Series Equity Growth Fund

5.2


&#160;


Fidelity Series Overseas Fund

5.0


&#160;


Fidelity Series International Value Fund

5.0


&#160;


Fidelity Series International Growth Fund

5.0


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Opportunistic Insights Fund

4.5


&#160;


&#160;

70.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013221_TH_0_Member"
      decimals="INF"
      id="ixv-266560"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_1_Member"
      decimals="INF"
      id="ixv-266561"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_2_Member"
      decimals="INF"
      id="ixv-266562"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_3_Member"
      decimals="INF"
      id="ixv-266563"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_4_Member"
      decimals="INF"
      id="ixv-266564"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_5_Member"
      decimals="INF"
      id="ixv-266565"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_6_Member"
      decimals="INF"
      id="ixv-266566"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_7_Member"
      decimals="INF"
      id="ixv-266567"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_8_Member"
      decimals="INF"
      id="ixv-266568"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013221_TH_9_Member"
      decimals="INF"
      id="ixv-266569"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013221_ClassMember" id="ixv-44303">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013221_ClassMember" id="ixv-44309">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013221_ClassMember" id="ixv-44313">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013221_ClassMember" id="ixv-44316">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013221_ClassMember" id="ixv-44320">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013221_ClassMember" id="ixv-44331">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013221_ClassMember" id="ixv-44338">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-44394">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013219_ClassMember" id="ixv-44398">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013219_ClassMember" id="ixv-44409">Fidelity Advisor Freedom&#xae; 2030 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013219_ClassMember" id="ixv-44412">Fidelity Advisor Freedom&#xae; 2030 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013219_ClassMember" id="ixv-44416">FAFEX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013219_ClassMember" id="ixv-44435">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2030 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013219_ClassMember" id="ixv-44437">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013219_ClassMember" id="ixv-44442">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013219_ClassMember" id="ixv-44444">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013219_ClassMember" id="ixv-44447">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013219_ClassMember" id="ixv-44450">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013219_ClassMember" id="ixv-44457">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;93&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.86&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013219_ClassMember"
      decimals="0"
      id="ixv-266570"
      unitRef="usd">93</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013219_ClassMember"
      decimals="INF"
      id="ixv-266571"
      unitRef="pure">0.0086</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013219_ClassMember" id="ixv-44499">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013219_ClassMember" id="ixv-44533">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,746


$12,014


$12,425


$11,604


$16,305


$16,475


$15,329


$17,445


$18,333


$21,023



Fidelity Freedom 2030 Composite Index&#x2120;


$10,000

$11,323


$12,634


$13,279


$12,708


$17,230


$17,724


$16,525


$18,782


$19,892


$22,577



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013219_LG_ClassMember_11YR" id="ixv-44554">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266572"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266573"
      unitRef="usd">10746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266574"
      unitRef="usd">12014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266575"
      unitRef="usd">12425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266576"
      unitRef="usd">11604</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266577"
      unitRef="usd">16305</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266578"
      unitRef="usd">16475</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266579"
      unitRef="usd">15329</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266580"
      unitRef="usd">17445</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266581"
      unitRef="usd">18333</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266582"
      unitRef="usd">21023</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013219_LG_1_AdditionalIndexMember_11YR"
      id="ixv-44603">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2030 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266583"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266584"
      unitRef="usd">11323</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266585"
      unitRef="usd">12634</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266586"
      unitRef="usd">13279</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266587"
      unitRef="usd">12708</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266588"
      unitRef="usd">17230</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266589"
      unitRef="usd">17724</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266590"
      unitRef="usd">16525</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266591"
      unitRef="usd">18782</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266592"
      unitRef="usd">19892</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266593"
      unitRef="usd">22577</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013219_LG_2_AdditionalIndexMember_11YR"
      id="ixv-44652">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266594"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266595"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266596"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266597"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266598"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266599"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266600"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266601"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266602"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266603"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013219_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266604"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013219_ClassMember" id="ixv-44753">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

8.08%

3.98%


7.71%


Class A (without 5.75% sales charge)

14.67%

5.21%

8.35%


Fidelity Freedom 2030 Composite Index&#x2120;

13.50%


5.55%


8.48%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_ClassMember_1YR"
      decimals="INF"
      id="ixv-266605"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_ClassMember_5YR"
      decimals="INF"
      id="ixv-266606"
      unitRef="pure">0.0398</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_ClassMember_10YR"
      decimals="INF"
      id="ixv-266607"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266608"
      unitRef="pure">0.1467</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266609"
      unitRef="pure">0.0521</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266610"
      unitRef="pure">0.0835</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266611"
      unitRef="pure">0.1350</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266612"
      unitRef="pure">0.0555</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266613"
      unitRef="pure">0.0848</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266614"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266615"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013219_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266616"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013219_ClassMember" id="ixv-44838">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013219_ClassMember" id="ixv-44850">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013219_ClassMember" id="ixv-44854">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013219_ClassMember" id="ixv-44860">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;2,981,641,828&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;16,289,707&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013219_InstantMember"
      decimals="0"
      id="ixv-266617"
      unitRef="usd">2981641828</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013219_InstantMember"
      decimals="INF"
      id="ixv-266618"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013219_ClassMember"
      decimals="0"
      id="ixv-266619"
      unitRef="usd">16289707</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013219_ClassMember"
      decimals="INF"
      id="ixv-266620"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013219_ClassMember" id="ixv-44935">
&#160;
&#160;
&#160;
&#160;
Bond Funds

37.0


Domestic Equity Funds

34.9


International Equity Funds

27.7


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 37.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 34.9&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 27.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013219_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266621"
      unitRef="pure">0.370</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266622"
      unitRef="pure">0.349</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266623"
      unitRef="pure">0.277</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266624"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013219_ClassMember" id="ixv-45026">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

20.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

7.1


&#160;


Fidelity Series Large Cap Stock Fund

7.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.3


&#160;


Fidelity Advisor Series Equity Growth Fund

5.2


&#160;


Fidelity Series Overseas Fund

5.0


&#160;


Fidelity Series International Value Fund

5.0


&#160;


Fidelity Series International Growth Fund

5.0


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Opportunistic Insights Fund

4.5


&#160;


&#160;

70.8

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013219_TH_0_Member"
      decimals="INF"
      id="ixv-266625"
      unitRef="pure">0.209</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_1_Member"
      decimals="INF"
      id="ixv-266626"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_2_Member"
      decimals="INF"
      id="ixv-266627"
      unitRef="pure">0.071</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_3_Member"
      decimals="INF"
      id="ixv-266628"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_4_Member"
      decimals="INF"
      id="ixv-266629"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_5_Member"
      decimals="INF"
      id="ixv-266630"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_6_Member"
      decimals="INF"
      id="ixv-266631"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_7_Member"
      decimals="INF"
      id="ixv-266632"
      unitRef="pure">0.050</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_8_Member"
      decimals="INF"
      id="ixv-266633"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013219_TH_9_Member"
      decimals="INF"
      id="ixv-266634"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013219_ClassMember" id="ixv-45151">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013219_ClassMember" id="ixv-45157">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013219_ClassMember" id="ixv-45161">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013219_ClassMember" id="ixv-45164">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013219_ClassMember" id="ixv-45168">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013219_ClassMember" id="ixv-45179">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013219_ClassMember" id="ixv-45186">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-45242">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182216_ClassMember" id="ixv-45246">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182216_ClassMember" id="ixv-45257">Fidelity Advisor Freedom&#xae; 2025 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182216_ClassMember" id="ixv-45260">Fidelity Advisor Freedom&#xae; 2025 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182216_ClassMember" id="ixv-45264">FPGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182216_ClassMember" id="ixv-45283">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2025 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182216_ClassMember" id="ixv-45285">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182216_ClassMember" id="ixv-45290">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182216_ClassMember" id="ixv-45292">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182216_ClassMember" id="ixv-45295">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182216_ClassMember" id="ixv-45298">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182216_ClassMember" id="ixv-45305">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;34&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.32&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182216_ClassMember"
      decimals="0"
      id="ixv-266635"
      unitRef="usd">34</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182216_ClassMember"
      decimals="INF"
      id="ixv-266636"
      unitRef="pure">0.0032</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182216_ClassMember" id="ixv-45347">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182216_ClassMember" id="ixv-45381">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,661


$11,071


$10,548


$14,326


$14,479


$13,526


$15,241


$16,090


$18,346



Fidelity Freedom 2025 Composite Index&#x2120;


$10,000

$10,645


$11,175


$10,874


$14,203


$14,522


$13,539


$15,179


$16,061


$18,043



S&amp;P 500&#xae; Index


$10,000

$11,044


$12,093


$11,249


$17,589


$20,341


$18,769


$24,377


$26,388


$31,086



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182216_LG_ClassMember_10YR" id="ixv-45400">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266637"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266638"
      unitRef="usd">10661</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266639"
      unitRef="usd">11071</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266640"
      unitRef="usd">10548</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266641"
      unitRef="usd">14326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266642"
      unitRef="usd">14479</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266643"
      unitRef="usd">13526</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266644"
      unitRef="usd">15241</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266645"
      unitRef="usd">16090</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266646"
      unitRef="usd">18346</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182216_LG_1_AdditionalIndexMember_10YR"
      id="ixv-45445">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2025 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266647"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266648"
      unitRef="usd">10645</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266649"
      unitRef="usd">11175</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266650"
      unitRef="usd">10874</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266651"
      unitRef="usd">14203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266652"
      unitRef="usd">14522</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266653"
      unitRef="usd">13539</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266654"
      unitRef="usd">15179</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266655"
      unitRef="usd">16061</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266656"
      unitRef="usd">18043</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182216_LG_2_AdditionalIndexMember_10YR"
      id="ixv-45490">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266657"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266658"
      unitRef="usd">11044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266659"
      unitRef="usd">12093</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266660"
      unitRef="usd">11249</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266661"
      unitRef="usd">17589</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266662"
      unitRef="usd">20341</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266663"
      unitRef="usd">18769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266664"
      unitRef="usd">24377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266665"
      unitRef="usd">26388</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182216_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266666"
      unitRef="usd">31086</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182216_ClassMember" id="ixv-45584">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

14.03%

5.07%

7.12%


Fidelity Freedom 2025 Composite Index&#x2120;

12.34%


4.90%


6.92%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.72%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266667"
      unitRef="pure">0.1403</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266668"
      unitRef="pure">0.0507</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-266669"
      unitRef="pure">0.0712</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266670"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266671"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-266672"
      unitRef="pure">0.0692</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266673"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266674"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182216_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-266675"
      unitRef="pure">0.1372</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182216_Perf_2017-06-06_ClassMember"
      id="ixv-45653">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182216_ClassMember" id="ixv-45663">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182216_ClassMember" id="ixv-45675">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182216_ClassMember" id="ixv-45679">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182216_ClassMember" id="ixv-45685">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,972,528,601&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,598,312&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182216_InstantMember"
      decimals="0"
      id="ixv-266676"
      unitRef="usd">1972528601</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182216_InstantMember"
      decimals="INF"
      id="ixv-266677"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182216_ClassMember"
      decimals="0"
      id="ixv-266678"
      unitRef="usd">10598312</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182216_ClassMember"
      decimals="INF"
      id="ixv-266679"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182216_ClassMember" id="ixv-45760">
&#160;
&#160;
&#160;
&#160;
Bond Funds

43.4


Domestic Equity Funds

31.1


International Equity Funds

25.1


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 43.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 31.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 25.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182216_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266680"
      unitRef="pure">0.434</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266681"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266682"
      unitRef="pure">0.251</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266683"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182216_ClassMember" id="ixv-45851">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

24.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

8.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

6.5


&#160;


Fidelity Series Large Cap Stock Fund

6.3


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.8


&#160;


Fidelity Advisor Series Equity Growth Fund

4.6


&#160;


Fidelity Series Overseas Fund

4.5


&#160;


Fidelity Series International Value Fund

4.5


&#160;


Fidelity Series International Growth Fund

4.4


&#160;


Fidelity Series Opportunistic Insights Fund

4.0


&#160;


&#160;

72.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182216_TH_0_Member"
      decimals="INF"
      id="ixv-266684"
      unitRef="pure">0.241</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_1_Member"
      decimals="INF"
      id="ixv-266685"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_2_Member"
      decimals="INF"
      id="ixv-266686"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_3_Member"
      decimals="INF"
      id="ixv-266687"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_4_Member"
      decimals="INF"
      id="ixv-266688"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_5_Member"
      decimals="INF"
      id="ixv-266689"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_6_Member"
      decimals="INF"
      id="ixv-266690"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_7_Member"
      decimals="INF"
      id="ixv-266691"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_8_Member"
      decimals="INF"
      id="ixv-266692"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182216_TH_9_Member"
      decimals="INF"
      id="ixv-266693"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182216_ClassMember" id="ixv-45976">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182216_ClassMember" id="ixv-45982">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182216_ClassMember" id="ixv-45986">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182216_ClassMember" id="ixv-45989">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182216_ClassMember" id="ixv-45993">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182216_ClassMember" id="ixv-46004">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-46062">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205060_ClassMember" id="ixv-46066">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205060_ClassMember" id="ixv-46077">Fidelity Advisor Freedom&#xae; 2025 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205060_ClassMember" id="ixv-46080">Fidelity Advisor Freedom&#xae; 2025 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205060_ClassMember" id="ixv-46084">FIJMX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205060_ClassMember" id="ixv-46103">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2025 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205060_ClassMember" id="ixv-46105">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205060_ClassMember" id="ixv-46110">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205060_ClassMember" id="ixv-46112">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205060_ClassMember" id="ixv-46115">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205060_ClassMember" id="ixv-46118">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205060_ClassMember" id="ixv-46125">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;55&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.52&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205060_ClassMember"
      decimals="0"
      id="ixv-266694"
      unitRef="usd">55</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205060_ClassMember"
      decimals="INF"
      id="ixv-266695"
      unitRef="pure">0.0052</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205060_ClassMember" id="ixv-46167">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205060_ClassMember" id="ixv-46201">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$10,056


$9,577


$12,991


$13,114


$12,239


$13,769


$14,504


$16,507



Fidelity Freedom 2025 Composite Index&#x2120;


$10,000

$10,071


$9,800


$12,800


$13,088


$12,202


$13,680


$14,475


$16,261



S&amp;P 500&#xae; Index


$10,000

$9,796


$9,113


$14,248


$16,477


$15,203


$19,746


$21,376


$25,181



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205060_LG_ClassMember_9YR" id="ixv-46220">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266696"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266697"
      unitRef="usd">10056</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266698"
      unitRef="usd">9577</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266699"
      unitRef="usd">12991</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266700"
      unitRef="usd">13114</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266701"
      unitRef="usd">12239</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266702"
      unitRef="usd">13769</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266703"
      unitRef="usd">14504</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266704"
      unitRef="usd">16507</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205060_LG_1_AdditionalIndexMember_9YR"
      id="ixv-46261">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2025 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266705"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266706"
      unitRef="usd">10071</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266707"
      unitRef="usd">9800</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266708"
      unitRef="usd">12800</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266709"
      unitRef="usd">13088</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266710"
      unitRef="usd">12202</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266711"
      unitRef="usd">13680</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266712"
      unitRef="usd">14475</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266713"
      unitRef="usd">16261</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205060_LG_2_AdditionalIndexMember_9YR"
      id="ixv-46302">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266714"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266715"
      unitRef="usd">9796</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266716"
      unitRef="usd">9113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266717"
      unitRef="usd">14248</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266718"
      unitRef="usd">16477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266719"
      unitRef="usd">15203</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266720"
      unitRef="usd">19746</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266721"
      unitRef="usd">21376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205060_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266722"
      unitRef="usd">25181</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205060_ClassMember" id="ixv-46389">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

13.81%

4.91%

6.91%


Fidelity Freedom 2025 Composite Index&#x2120;

12.34%


4.90%


6.70%


S&amp;P 500&#xae; Index

17.80%


12.06%


13.11%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266723"
      unitRef="pure">0.1381</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266724"
      unitRef="pure">0.0491</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-266725"
      unitRef="pure">0.0691</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266726"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266727"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-266728"
      unitRef="pure">0.0670</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266729"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266730"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205060_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-266731"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205060_Perf_2018-10-02_ClassMember"
      id="ixv-46458">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205060_ClassMember" id="ixv-46468">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205060_ClassMember" id="ixv-46480">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205060_ClassMember" id="ixv-46484">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205060_ClassMember" id="ixv-46490">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,972,528,601&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,598,312&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205060_InstantMember"
      decimals="0"
      id="ixv-266732"
      unitRef="usd">1972528601</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205060_InstantMember"
      decimals="INF"
      id="ixv-266733"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205060_ClassMember"
      decimals="0"
      id="ixv-266734"
      unitRef="usd">10598312</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205060_ClassMember"
      decimals="INF"
      id="ixv-266735"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205060_ClassMember" id="ixv-46565">
&#160;
&#160;
&#160;
&#160;
Bond Funds

43.4


Domestic Equity Funds

31.1


International Equity Funds

25.1


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 43.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 31.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 25.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205060_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266736"
      unitRef="pure">0.434</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266737"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266738"
      unitRef="pure">0.251</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266739"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205060_ClassMember" id="ixv-46656">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

24.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

8.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

6.5


&#160;


Fidelity Series Large Cap Stock Fund

6.3


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.8


&#160;


Fidelity Advisor Series Equity Growth Fund

4.6


&#160;


Fidelity Series Overseas Fund

4.5


&#160;


Fidelity Series International Value Fund

4.5


&#160;


Fidelity Series International Growth Fund

4.4


&#160;


Fidelity Series Opportunistic Insights Fund

4.0


&#160;


&#160;

72.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205060_TH_0_Member"
      decimals="INF"
      id="ixv-266740"
      unitRef="pure">0.241</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_1_Member"
      decimals="INF"
      id="ixv-266741"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_2_Member"
      decimals="INF"
      id="ixv-266742"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_3_Member"
      decimals="INF"
      id="ixv-266743"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_4_Member"
      decimals="INF"
      id="ixv-266744"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_5_Member"
      decimals="INF"
      id="ixv-266745"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_6_Member"
      decimals="INF"
      id="ixv-266746"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_7_Member"
      decimals="INF"
      id="ixv-266747"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_8_Member"
      decimals="INF"
      id="ixv-266748"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205060_TH_9_Member"
      decimals="INF"
      id="ixv-266749"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205060_ClassMember" id="ixv-46781">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205060_ClassMember" id="ixv-46787">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205060_ClassMember" id="ixv-46791">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205060_ClassMember" id="ixv-46794">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205060_ClassMember" id="ixv-46798">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205060_ClassMember" id="ixv-46809">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-46867">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013217_ClassMember" id="ixv-46871">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013217_ClassMember" id="ixv-46882">Fidelity Advisor Freedom&#xae; 2025 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013217_ClassMember" id="ixv-46885">Fidelity Advisor Freedom&#xae; 2025 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013217_ClassMember" id="ixv-46889">FTTWX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013217_ClassMember" id="ixv-46908">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2025 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013217_ClassMember" id="ixv-46910">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013217_ClassMember" id="ixv-46915">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013217_ClassMember" id="ixv-46917">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013217_ClassMember" id="ixv-46920">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013217_ClassMember" id="ixv-46923">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013217_ClassMember" id="ixv-46930">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;116&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.09&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013217_ClassMember"
      decimals="0"
      id="ixv-266750"
      unitRef="usd">116</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013217_ClassMember"
      decimals="INF"
      id="ixv-266751"
      unitRef="pure">0.0109</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013217_ClassMember" id="ixv-46972">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013217_ClassMember" id="ixv-47006">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$10,779


$11,824


$12,189


$11,542


$15,565


$15,624


$14,498


$16,211


$16,982


$19,208



Fidelity Freedom 2025 Composite Index&#x2120;


$10,000

$11,085


$12,168


$12,774


$12,430


$16,236


$16,601


$15,476


$17,352


$18,359


$20,625



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013217_LG_ClassMember_11YR" id="ixv-47027">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266752"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266753"
      unitRef="usd">10779</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266754"
      unitRef="usd">11824</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266755"
      unitRef="usd">12189</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266756"
      unitRef="usd">11542</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266757"
      unitRef="usd">15565</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266758"
      unitRef="usd">15624</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266759"
      unitRef="usd">14498</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266760"
      unitRef="usd">16211</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266761"
      unitRef="usd">16982</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266762"
      unitRef="usd">19208</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013217_LG_1_AdditionalIndexMember_11YR"
      id="ixv-47076">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2025 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266763"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266764"
      unitRef="usd">11085</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266765"
      unitRef="usd">12168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266766"
      unitRef="usd">12774</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266767"
      unitRef="usd">12430</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266768"
      unitRef="usd">16236</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266769"
      unitRef="usd">16601</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266770"
      unitRef="usd">15476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266771"
      unitRef="usd">17352</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266772"
      unitRef="usd">18359</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266773"
      unitRef="usd">20625</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013217_LG_2_AdditionalIndexMember_11YR"
      id="ixv-47125">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266774"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266775"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266776"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266777"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266778"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266779"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266780"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266781"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266782"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266783"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013217_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266784"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013217_ClassMember" id="ixv-47226">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

9.15%

3.55%


6.74%


Class M (without 3.50% sales charge)

13.11%

4.30%

7.13%


Fidelity Freedom 2025 Composite Index&#x2120;

12.34%


4.90%


7.51%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_ClassMember_1YR"
      decimals="INF"
      id="ixv-266785"
      unitRef="pure">0.0915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_ClassMember_5YR"
      decimals="INF"
      id="ixv-266786"
      unitRef="pure">0.0355</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_ClassMember_10YR"
      decimals="INF"
      id="ixv-266787"
      unitRef="pure">0.0674</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266788"
      unitRef="pure">0.1311</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266789"
      unitRef="pure">0.0430</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266790"
      unitRef="pure">0.0713</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266791"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266792"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266793"
      unitRef="pure">0.0751</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266794"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266795"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013217_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266796"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013217_ClassMember" id="ixv-47311">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013217_ClassMember" id="ixv-47323">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013217_ClassMember" id="ixv-47327">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013217_ClassMember" id="ixv-47333">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,972,528,601&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,598,312&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013217_InstantMember"
      decimals="0"
      id="ixv-266797"
      unitRef="usd">1972528601</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013217_InstantMember"
      decimals="INF"
      id="ixv-266798"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013217_ClassMember"
      decimals="0"
      id="ixv-266799"
      unitRef="usd">10598312</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013217_ClassMember"
      decimals="INF"
      id="ixv-266800"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013217_ClassMember" id="ixv-47408">
&#160;
&#160;
&#160;
&#160;
Bond Funds

43.4


Domestic Equity Funds

31.1


International Equity Funds

25.1


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 43.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 31.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 25.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013217_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266801"
      unitRef="pure">0.434</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266802"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266803"
      unitRef="pure">0.251</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266804"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013217_ClassMember" id="ixv-47499">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

24.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

8.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

6.5


&#160;


Fidelity Series Large Cap Stock Fund

6.3


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.8


&#160;


Fidelity Advisor Series Equity Growth Fund

4.6


&#160;


Fidelity Series Overseas Fund

4.5


&#160;


Fidelity Series International Value Fund

4.5


&#160;


Fidelity Series International Growth Fund

4.4


&#160;


Fidelity Series Opportunistic Insights Fund

4.0


&#160;


&#160;

72.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013217_TH_0_Member"
      decimals="INF"
      id="ixv-266805"
      unitRef="pure">0.241</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_1_Member"
      decimals="INF"
      id="ixv-266806"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_2_Member"
      decimals="INF"
      id="ixv-266807"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_3_Member"
      decimals="INF"
      id="ixv-266808"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_4_Member"
      decimals="INF"
      id="ixv-266809"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_5_Member"
      decimals="INF"
      id="ixv-266810"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_6_Member"
      decimals="INF"
      id="ixv-266811"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_7_Member"
      decimals="INF"
      id="ixv-266812"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_8_Member"
      decimals="INF"
      id="ixv-266813"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013217_TH_9_Member"
      decimals="INF"
      id="ixv-266814"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013217_ClassMember" id="ixv-47624">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013217_ClassMember" id="ixv-47630">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013217_ClassMember" id="ixv-47634">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013217_ClassMember" id="ixv-47637">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013217_ClassMember" id="ixv-47641">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013217_ClassMember" id="ixv-47652">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013217_ClassMember" id="ixv-47659">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-47715">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013218_ClassMember" id="ixv-47719">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013218_ClassMember" id="ixv-47730">Fidelity Advisor Freedom&#xae; 2025 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013218_ClassMember" id="ixv-47733">Fidelity Advisor Freedom&#xae; 2025 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013218_ClassMember" id="ixv-47737">FITWX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013218_ClassMember" id="ixv-47756">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2025 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013218_ClassMember" id="ixv-47758">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013218_ClassMember" id="ixv-47763">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013218_ClassMember" id="ixv-47765">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013218_ClassMember" id="ixv-47768">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013218_ClassMember" id="ixv-47771">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013218_ClassMember" id="ixv-47778">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;63&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.59&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013218_ClassMember"
      decimals="0"
      id="ixv-266815"
      unitRef="usd">63</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013218_ClassMember"
      decimals="INF"
      id="ixv-266816"
      unitRef="pure">0.0059</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013218_ClassMember" id="ixv-47820">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013218_ClassMember" id="ixv-47854">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,226


$12,377


$12,826


$12,199


$16,538


$16,685


$15,548


$17,480


$18,407


$20,934



Fidelity Freedom 2025 Composite Index&#x2120;


$10,000

$11,085


$12,168


$12,774


$12,430


$16,236


$16,601


$15,476


$17,352


$18,359


$20,625



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013218_LG_ClassMember_11YR" id="ixv-47873">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266817"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266818"
      unitRef="usd">11226</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266819"
      unitRef="usd">12377</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266820"
      unitRef="usd">12826</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266821"
      unitRef="usd">12199</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266822"
      unitRef="usd">16538</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266823"
      unitRef="usd">16685</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266824"
      unitRef="usd">15548</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266825"
      unitRef="usd">17480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266826"
      unitRef="usd">18407</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266827"
      unitRef="usd">20934</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013218_LG_1_AdditionalIndexMember_11YR"
      id="ixv-47922">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2025 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266828"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266829"
      unitRef="usd">11085</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266830"
      unitRef="usd">12168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266831"
      unitRef="usd">12774</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266832"
      unitRef="usd">12430</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266833"
      unitRef="usd">16236</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266834"
      unitRef="usd">16601</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266835"
      unitRef="usd">15476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266836"
      unitRef="usd">17352</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266837"
      unitRef="usd">18359</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266838"
      unitRef="usd">20625</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013218_LG_2_AdditionalIndexMember_11YR"
      id="ixv-47971">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266839"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266840"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266841"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266842"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266843"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266844"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266845"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266846"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266847"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266848"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013218_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266849"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013218_ClassMember" id="ixv-48072">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

13.73%

4.83%

7.67%


Fidelity Freedom 2025 Composite Index&#x2120;

12.34%


4.90%


7.51%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266850"
      unitRef="pure">0.1373</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266851"
      unitRef="pure">0.0483</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266852"
      unitRef="pure">0.0767</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266853"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266854"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266855"
      unitRef="pure">0.0751</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266856"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266857"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013218_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266858"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013218_ClassMember" id="ixv-48142">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013218_ClassMember" id="ixv-48154">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013218_ClassMember" id="ixv-48158">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013218_ClassMember" id="ixv-48164">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,972,528,601&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,598,312&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013218_InstantMember"
      decimals="0"
      id="ixv-266859"
      unitRef="usd">1972528601</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013218_InstantMember"
      decimals="INF"
      id="ixv-266860"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013218_ClassMember"
      decimals="0"
      id="ixv-266861"
      unitRef="usd">10598312</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013218_ClassMember"
      decimals="INF"
      id="ixv-266862"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013218_ClassMember" id="ixv-48239">
&#160;
&#160;
&#160;
&#160;
Bond Funds

43.4


Domestic Equity Funds

31.1


International Equity Funds

25.1


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 43.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 31.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 25.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013218_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266863"
      unitRef="pure">0.434</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266864"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266865"
      unitRef="pure">0.251</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266866"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013218_ClassMember" id="ixv-48330">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

24.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

8.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

6.5


&#160;


Fidelity Series Large Cap Stock Fund

6.3


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.8


&#160;


Fidelity Advisor Series Equity Growth Fund

4.6


&#160;


Fidelity Series Overseas Fund

4.5


&#160;


Fidelity Series International Value Fund

4.5


&#160;


Fidelity Series International Growth Fund

4.4


&#160;


Fidelity Series Opportunistic Insights Fund

4.0


&#160;


&#160;

72.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013218_TH_0_Member"
      decimals="INF"
      id="ixv-266867"
      unitRef="pure">0.241</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_1_Member"
      decimals="INF"
      id="ixv-266868"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_2_Member"
      decimals="INF"
      id="ixv-266869"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_3_Member"
      decimals="INF"
      id="ixv-266870"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_4_Member"
      decimals="INF"
      id="ixv-266871"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_5_Member"
      decimals="INF"
      id="ixv-266872"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_6_Member"
      decimals="INF"
      id="ixv-266873"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_7_Member"
      decimals="INF"
      id="ixv-266874"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_8_Member"
      decimals="INF"
      id="ixv-266875"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013218_TH_9_Member"
      decimals="INF"
      id="ixv-266876"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013218_ClassMember" id="ixv-48455">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013218_ClassMember" id="ixv-48461">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013218_ClassMember" id="ixv-48465">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013218_ClassMember" id="ixv-48468">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013218_ClassMember" id="ixv-48472">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013218_ClassMember" id="ixv-48483">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013218_ClassMember" id="ixv-48490">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-48546">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013216_ClassMember" id="ixv-48550">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013216_ClassMember" id="ixv-48561">Fidelity Advisor Freedom&#xae; 2025 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013216_ClassMember" id="ixv-48564">Fidelity Advisor Freedom&#xae; 2025 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013216_ClassMember" id="ixv-48568">FCTWX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013216_ClassMember" id="ixv-48587">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2025 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013216_ClassMember" id="ixv-48589">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013216_ClassMember" id="ixv-48594">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013216_ClassMember" id="ixv-48596">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013216_ClassMember" id="ixv-48599">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013216_ClassMember" id="ixv-48602">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013216_ClassMember" id="ixv-48609">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;169&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.59&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013216_ClassMember"
      decimals="0"
      id="ixv-266877"
      unitRef="usd">169</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013216_ClassMember"
      decimals="INF"
      id="ixv-266878"
      unitRef="pure">0.0159</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013216_ClassMember" id="ixv-48651">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013216_ClassMember" id="ixv-48685">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,113


$12,129


$12,443


$11,714


$15,730


$15,711


$14,499


$16,133


$16,945


$19,217



Fidelity Freedom 2025 Composite Index&#x2120;


$10,000

$11,085


$12,168


$12,774


$12,430


$16,236


$16,601


$15,476


$17,352


$18,359


$20,625



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013216_LG_ClassMember_11YR" id="ixv-48704">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266879"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266880"
      unitRef="usd">11113</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266881"
      unitRef="usd">12129</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266882"
      unitRef="usd">12443</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266883"
      unitRef="usd">11714</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266884"
      unitRef="usd">15730</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266885"
      unitRef="usd">15711</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266886"
      unitRef="usd">14499</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266887"
      unitRef="usd">16133</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266888"
      unitRef="usd">16945</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266889"
      unitRef="usd">19217</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013216_LG_1_AdditionalIndexMember_11YR"
      id="ixv-48753">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2025 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266890"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266891"
      unitRef="usd">11085</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266892"
      unitRef="usd">12168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266893"
      unitRef="usd">12774</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266894"
      unitRef="usd">12430</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266895"
      unitRef="usd">16236</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266896"
      unitRef="usd">16601</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266897"
      unitRef="usd">15476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266898"
      unitRef="usd">17352</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266899"
      unitRef="usd">18359</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266900"
      unitRef="usd">20625</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013216_LG_2_AdditionalIndexMember_11YR"
      id="ixv-48802">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266901"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266902"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266903"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266904"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266905"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266906"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266907"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266908"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266909"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266910"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013216_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266911"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013216_ClassMember" id="ixv-48903">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

11.52%

3.77%


6.75%


Class C

12.52%

3.77%

6.75%


Fidelity Freedom 2025 Composite Index&#x2120;

12.34%


4.90%


7.51%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_ClassMember_1YR"
      decimals="INF"
      id="ixv-266912"
      unitRef="pure">0.1152</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_ClassMember_5YR"
      decimals="INF"
      id="ixv-266913"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_ClassMember_10YR"
      decimals="INF"
      id="ixv-266914"
      unitRef="pure">0.0675</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266915"
      unitRef="pure">0.1252</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266916"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266917"
      unitRef="pure">0.0675</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266918"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266919"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266920"
      unitRef="pure">0.0751</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266921"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266922"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013216_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266923"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013216_ClassMember" id="ixv-48989">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013216_ClassMember" id="ixv-49001">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013216_ClassMember" id="ixv-49005">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013216_ClassMember" id="ixv-49011">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,972,528,601&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,598,312&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013216_InstantMember"
      decimals="0"
      id="ixv-266924"
      unitRef="usd">1972528601</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013216_InstantMember"
      decimals="INF"
      id="ixv-266925"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013216_ClassMember"
      decimals="0"
      id="ixv-266926"
      unitRef="usd">10598312</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013216_ClassMember"
      decimals="INF"
      id="ixv-266927"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013216_ClassMember" id="ixv-49086">
&#160;
&#160;
&#160;
&#160;
Bond Funds

43.4


Domestic Equity Funds

31.1


International Equity Funds

25.1


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 43.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 31.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 25.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013216_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266928"
      unitRef="pure">0.434</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266929"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266930"
      unitRef="pure">0.251</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266931"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013216_ClassMember" id="ixv-49177">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

24.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

8.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

6.5


&#160;


Fidelity Series Large Cap Stock Fund

6.3


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.8


&#160;


Fidelity Advisor Series Equity Growth Fund

4.6


&#160;


Fidelity Series Overseas Fund

4.5


&#160;


Fidelity Series International Value Fund

4.5


&#160;


Fidelity Series International Growth Fund

4.4


&#160;


Fidelity Series Opportunistic Insights Fund

4.0


&#160;


&#160;

72.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013216_TH_0_Member"
      decimals="INF"
      id="ixv-266932"
      unitRef="pure">0.241</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_1_Member"
      decimals="INF"
      id="ixv-266933"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_2_Member"
      decimals="INF"
      id="ixv-266934"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_3_Member"
      decimals="INF"
      id="ixv-266935"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_4_Member"
      decimals="INF"
      id="ixv-266936"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_5_Member"
      decimals="INF"
      id="ixv-266937"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_6_Member"
      decimals="INF"
      id="ixv-266938"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_7_Member"
      decimals="INF"
      id="ixv-266939"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_8_Member"
      decimals="INF"
      id="ixv-266940"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013216_TH_9_Member"
      decimals="INF"
      id="ixv-266941"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013216_ClassMember" id="ixv-49302">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013216_ClassMember" id="ixv-49308">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013216_ClassMember" id="ixv-49312">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013216_ClassMember" id="ixv-49315">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013216_ClassMember" id="ixv-49319">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013216_ClassMember" id="ixv-49330">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013216_ClassMember" id="ixv-49337">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-49393">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013214_ClassMember" id="ixv-49397">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013214_ClassMember" id="ixv-49408">Fidelity Advisor Freedom&#xae; 2025 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013214_ClassMember" id="ixv-49411">Fidelity Advisor Freedom&#xae; 2025 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013214_ClassMember" id="ixv-49415">FATWX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013214_ClassMember" id="ixv-49434">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2025 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013214_ClassMember" id="ixv-49436">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013214_ClassMember" id="ixv-49441">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013214_ClassMember" id="ixv-49443">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013214_ClassMember" id="ixv-49446">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013214_ClassMember" id="ixv-49449">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013214_ClassMember" id="ixv-49456">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;90&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.84&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013214_ClassMember"
      decimals="0"
      id="ixv-266942"
      unitRef="usd">90</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013214_ClassMember"
      decimals="INF"
      id="ixv-266943"
      unitRef="pure">0.0084</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013214_ClassMember" id="ixv-49498">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013214_ClassMember" id="ixv-49532">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,556


$11,607


$11,995


$11,384


$15,393


$15,492


$14,399


$16,153


$16,966


$19,241



Fidelity Freedom 2025 Composite Index&#x2120;


$10,000

$11,085


$12,168


$12,774


$12,430


$16,236


$16,601


$15,476


$17,352


$18,359


$20,625



S&amp;P 500&#xae; Index


$10,000

$11,717


$13,357


$14,625


$13,605


$21,271


$24,599


$22,698


$29,480


$31,913


$37,594



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013214_LG_ClassMember_11YR" id="ixv-49553">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-266944"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-266945"
      unitRef="usd">10556</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-266946"
      unitRef="usd">11607</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-266947"
      unitRef="usd">11995</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-266948"
      unitRef="usd">11384</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-266949"
      unitRef="usd">15393</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-266950"
      unitRef="usd">15492</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-266951"
      unitRef="usd">14399</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-266952"
      unitRef="usd">16153</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-266953"
      unitRef="usd">16966</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-266954"
      unitRef="usd">19241</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013214_LG_1_AdditionalIndexMember_11YR"
      id="ixv-49602">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2025 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266955"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266956"
      unitRef="usd">11085</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266957"
      unitRef="usd">12168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266958"
      unitRef="usd">12774</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266959"
      unitRef="usd">12430</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266960"
      unitRef="usd">16236</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266961"
      unitRef="usd">16601</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266962"
      unitRef="usd">15476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266963"
      unitRef="usd">17352</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266964"
      unitRef="usd">18359</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266965"
      unitRef="usd">20625</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013214_LG_2_AdditionalIndexMember_11YR"
      id="ixv-49651">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-266966"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-266967"
      unitRef="usd">11717</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-266968"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-266969"
      unitRef="usd">14625</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-266970"
      unitRef="usd">13605</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-266971"
      unitRef="usd">21271</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-266972"
      unitRef="usd">24599</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-266973"
      unitRef="usd">22698</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-266974"
      unitRef="usd">29480</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-266975"
      unitRef="usd">31913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013214_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-266976"
      unitRef="usd">37594</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013214_ClassMember" id="ixv-49752">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

6.89%

3.33%


6.76%


Class A (without 5.75% sales charge)

13.41%

4.56%

7.40%


Fidelity Freedom 2025 Composite Index&#x2120;

12.34%


4.90%


7.51%


S&amp;P 500&#xae; Index

17.80%


12.06%


14.16%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_ClassMember_1YR"
      decimals="INF"
      id="ixv-266977"
      unitRef="pure">0.0689</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_ClassMember_5YR"
      decimals="INF"
      id="ixv-266978"
      unitRef="pure">0.0333</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_ClassMember_10YR"
      decimals="INF"
      id="ixv-266979"
      unitRef="pure">0.0676</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-266980"
      unitRef="pure">0.1341</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-266981"
      unitRef="pure">0.0456</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-266982"
      unitRef="pure">0.0740</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-266983"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-266984"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-266985"
      unitRef="pure">0.0751</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-266986"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-266987"
      unitRef="pure">0.1206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013214_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-266988"
      unitRef="pure">0.1416</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013214_ClassMember" id="ixv-49837">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013214_ClassMember" id="ixv-49849">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013214_ClassMember" id="ixv-49853">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013214_ClassMember" id="ixv-49859">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,972,528,601&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;10,598,312&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;19&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013214_InstantMember"
      decimals="0"
      id="ixv-266989"
      unitRef="usd">1972528601</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013214_InstantMember"
      decimals="INF"
      id="ixv-266990"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013214_ClassMember"
      decimals="0"
      id="ixv-266991"
      unitRef="usd">10598312</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013214_ClassMember"
      decimals="INF"
      id="ixv-266992"
      unitRef="pure">0.19</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013214_ClassMember" id="ixv-49934">
&#160;
&#160;
&#160;
&#160;
Bond Funds

43.4


Domestic Equity Funds

31.1


International Equity Funds

25.1


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 43.4&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 31.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 25.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013214_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-266993"
      unitRef="pure">0.434</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-266994"
      unitRef="pure">0.311</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-266995"
      unitRef="pure">0.251</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-266996"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013214_ClassMember" id="ixv-50025">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

24.1


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

8.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

6.5


&#160;


Fidelity Series Large Cap Stock Fund

6.3


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.8


&#160;


Fidelity Advisor Series Equity Growth Fund

4.6


&#160;


Fidelity Series Overseas Fund

4.5


&#160;


Fidelity Series International Value Fund

4.5


&#160;


Fidelity Series International Growth Fund

4.4


&#160;


Fidelity Series Opportunistic Insights Fund

4.0


&#160;


&#160;

72.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013214_TH_0_Member"
      decimals="INF"
      id="ixv-266997"
      unitRef="pure">0.241</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_1_Member"
      decimals="INF"
      id="ixv-266998"
      unitRef="pure">0.089</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_2_Member"
      decimals="INF"
      id="ixv-266999"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_3_Member"
      decimals="INF"
      id="ixv-267000"
      unitRef="pure">0.063</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_4_Member"
      decimals="INF"
      id="ixv-267001"
      unitRef="pure">0.048</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_5_Member"
      decimals="INF"
      id="ixv-267002"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_6_Member"
      decimals="INF"
      id="ixv-267003"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_7_Member"
      decimals="INF"
      id="ixv-267004"
      unitRef="pure">0.045</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_8_Member"
      decimals="INF"
      id="ixv-267005"
      unitRef="pure">0.044</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013214_TH_9_Member"
      decimals="INF"
      id="ixv-267006"
      unitRef="pure">0.040</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013214_ClassMember" id="ixv-50150">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013214_ClassMember" id="ixv-50156">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013214_ClassMember" id="ixv-50160">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013214_ClassMember" id="ixv-50163">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013214_ClassMember" id="ixv-50167">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013214_ClassMember" id="ixv-50178">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013214_ClassMember" id="ixv-50185">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-50241">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182215_ClassMember" id="ixv-50245">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182215_ClassMember" id="ixv-50256">Fidelity Advisor Freedom&#xae; 2020 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182215_ClassMember" id="ixv-50259">Fidelity Advisor Freedom&#xae; 2020 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182215_ClassMember" id="ixv-50263">FOGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182215_ClassMember" id="ixv-50282">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2020 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182215_ClassMember" id="ixv-50284">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182215_ClassMember" id="ixv-50289">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182215_ClassMember" id="ixv-50291">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182215_ClassMember" id="ixv-50294">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182215_ClassMember" id="ixv-50297">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182215_ClassMember" id="ixv-50304">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;30&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.28&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182215_ClassMember"
      decimals="0"
      id="ixv-267007"
      unitRef="usd">30</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182215_ClassMember"
      decimals="INF"
      id="ixv-267008"
      unitRef="pure">0.0028</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182215_ClassMember" id="ixv-50346">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182215_ClassMember" id="ixv-50380">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,608


$11,008


$10,598


$13,984


$14,080


$13,178


$14,644


$15,465


$17,421



Fidelity Freedom 2020 Composite Index&#x2120;


$10,000

$10,587


$11,107


$10,932


$13,875


$14,116


$13,200


$14,614


$15,456


$17,168



Bloomberg U.S. Aggregate Bond Index


$10,000

$9,938


$10,384


$11,311


$11,392


$10,919


$10,396


$10,573


$11,089


$11,571



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182215_LG_ClassMember_10YR" id="ixv-50399">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267009"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267010"
      unitRef="usd">10608</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267011"
      unitRef="usd">11008</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267012"
      unitRef="usd">10598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267013"
      unitRef="usd">13984</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267014"
      unitRef="usd">14080</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267015"
      unitRef="usd">13178</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267016"
      unitRef="usd">14644</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267017"
      unitRef="usd">15465</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267018"
      unitRef="usd">17421</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182215_LG_1_AdditionalIndexMember_10YR"
      id="ixv-50444">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2020 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267019"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267020"
      unitRef="usd">10587</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267021"
      unitRef="usd">11107</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267022"
      unitRef="usd">10932</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267023"
      unitRef="usd">13875</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267024"
      unitRef="usd">14116</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267025"
      unitRef="usd">13200</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267026"
      unitRef="usd">14614</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267027"
      unitRef="usd">15456</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267028"
      unitRef="usd">17168</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182215_LG_2_AdditionalIndexMember_10YR"
      id="ixv-50489">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267029"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267030"
      unitRef="usd">9938</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267031"
      unitRef="usd">10384</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267032"
      unitRef="usd">11311</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267033"
      unitRef="usd">11392</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267034"
      unitRef="usd">10919</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267035"
      unitRef="usd">10396</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267036"
      unitRef="usd">10573</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267037"
      unitRef="usd">11089</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182215_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267038"
      unitRef="usd">11571</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182215_ClassMember" id="ixv-50583">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

12.65%

4.49%

6.49%


Fidelity Freedom 2020 Composite Index&#x2120;

11.08%


4.35%


6.32%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.67%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267039"
      unitRef="pure">0.1265</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267040"
      unitRef="pure">0.0449</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-267041"
      unitRef="pure">0.0649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267042"
      unitRef="pure">0.1108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267043"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-267044"
      unitRef="pure">0.0632</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267045"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267046"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182215_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-267047"
      unitRef="pure">0.0167</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182215_Perf_2017-06-06_ClassMember"
      id="ixv-50652">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182215_ClassMember" id="ixv-50662">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182215_ClassMember" id="ixv-50674">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182215_ClassMember" id="ixv-50678">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182215_ClassMember" id="ixv-50684">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,039,651,935&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;5,346,237&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182215_InstantMember"
      decimals="0"
      id="ixv-267048"
      unitRef="usd">1039651935</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="ixv-267049"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182215_ClassMember"
      decimals="0"
      id="ixv-267050"
      unitRef="usd">5346237</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182215_ClassMember"
      decimals="INF"
      id="ixv-267051"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182215_ClassMember" id="ixv-50759">
&#160;
&#160;
&#160;
&#160;
Bond Funds

49.1


Domestic Equity Funds

26.6


International Equity Funds

21.7


Short-Term Funds

2.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 49.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 26.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 21.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 2.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182215_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267052"
      unitRef="pure">0.491</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267053"
      unitRef="pure">0.266</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267054"
      unitRef="pure">0.217</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267055"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267056"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182215_ClassMember" id="ixv-50863">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

27.8


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.5


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

6.2


&#160;


Fidelity Series Emerging Markets Opportunities Fund

5.6


&#160;


Fidelity Series Large Cap Stock Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Advisor Series Equity Growth Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.8


&#160;


Fidelity Series International Value Fund

3.8


&#160;


Fidelity Series International Growth Fund

3.8


&#160;


&#160;

71.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182215_TH_0_Member"
      decimals="INF"
      id="ixv-267057"
      unitRef="pure">0.278</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_1_Member"
      decimals="INF"
      id="ixv-267058"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_2_Member"
      decimals="INF"
      id="ixv-267059"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_3_Member"
      decimals="INF"
      id="ixv-267060"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_4_Member"
      decimals="INF"
      id="ixv-267061"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_5_Member"
      decimals="INF"
      id="ixv-267062"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_6_Member"
      decimals="INF"
      id="ixv-267063"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_7_Member"
      decimals="INF"
      id="ixv-267064"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_8_Member"
      decimals="INF"
      id="ixv-267065"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182215_TH_9_Member"
      decimals="INF"
      id="ixv-267066"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182215_ClassMember" id="ixv-50988">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182215_ClassMember" id="ixv-50994">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182215_ClassMember" id="ixv-50998">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182215_ClassMember" id="ixv-51001">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182215_ClassMember" id="ixv-51005">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182215_ClassMember" id="ixv-51016">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-51074">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205059_ClassMember" id="ixv-51078">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205059_ClassMember" id="ixv-51089">Fidelity Advisor Freedom&#xae; 2020 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205059_ClassMember" id="ixv-51092">Fidelity Advisor Freedom&#xae; 2020 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205059_ClassMember" id="ixv-51096">FIJLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205059_ClassMember" id="ixv-51115">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2020 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205059_ClassMember" id="ixv-51117">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205059_ClassMember" id="ixv-51122">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205059_ClassMember" id="ixv-51124">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205059_ClassMember" id="ixv-51127">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205059_ClassMember" id="ixv-51130">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205059_ClassMember" id="ixv-51137">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;51&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.48&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205059_ClassMember"
      decimals="0"
      id="ixv-267067"
      unitRef="usd">51</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205059_ClassMember"
      decimals="INF"
      id="ixv-267068"
      unitRef="pure">0.0048</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205059_ClassMember" id="ixv-51179">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205059_ClassMember" id="ixv-51213">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$10,091


$9,705


$12,794


$12,868


$12,034


$13,357


$14,071


$15,814



Fidelity Freedom 2020 Composite Index&#x2120;


$10,000

$10,103


$9,944


$12,621


$12,841


$12,008


$13,294


$14,059


$15,617



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,460


$11,395


$11,476


$10,999


$10,473


$10,651


$11,171


$11,657



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205059_LG_ClassMember_9YR" id="ixv-51232">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267069"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267070"
      unitRef="usd">10091</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267071"
      unitRef="usd">9705</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267072"
      unitRef="usd">12794</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267073"
      unitRef="usd">12868</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267074"
      unitRef="usd">12034</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267075"
      unitRef="usd">13357</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267076"
      unitRef="usd">14071</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267077"
      unitRef="usd">15814</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205059_LG_1_AdditionalIndexMember_9YR"
      id="ixv-51273">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2020 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267078"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267079"
      unitRef="usd">10103</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267080"
      unitRef="usd">9944</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267081"
      unitRef="usd">12621</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267082"
      unitRef="usd">12841</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267083"
      unitRef="usd">12008</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267084"
      unitRef="usd">13294</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267085"
      unitRef="usd">14059</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267086"
      unitRef="usd">15617</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205059_LG_2_AdditionalIndexMember_9YR"
      id="ixv-51314">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267087"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267088"
      unitRef="usd">10460</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267089"
      unitRef="usd">11395</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267090"
      unitRef="usd">11476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267091"
      unitRef="usd">10999</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267092"
      unitRef="usd">10473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267093"
      unitRef="usd">10651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267094"
      unitRef="usd">11171</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205059_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267095"
      unitRef="usd">11657</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205059_ClassMember" id="ixv-51401">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

12.39%

4.33%

6.30%


Fidelity Freedom 2020 Composite Index&#x2120;

11.08%


4.35%


6.12%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


2.07%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267096"
      unitRef="pure">0.1239</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267097"
      unitRef="pure">0.0433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-267098"
      unitRef="pure">0.0630</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267099"
      unitRef="pure">0.1108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267100"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-267101"
      unitRef="pure">0.0612</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267102"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267103"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205059_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-267104"
      unitRef="pure">0.0207</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205059_Perf_2018-10-02_ClassMember"
      id="ixv-51470">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205059_ClassMember" id="ixv-51480">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205059_ClassMember" id="ixv-51492">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205059_ClassMember" id="ixv-51496">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205059_ClassMember" id="ixv-51502">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,039,651,935&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;5,346,237&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205059_InstantMember"
      decimals="0"
      id="ixv-267105"
      unitRef="usd">1039651935</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205059_InstantMember"
      decimals="INF"
      id="ixv-267106"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205059_ClassMember"
      decimals="0"
      id="ixv-267107"
      unitRef="usd">5346237</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205059_ClassMember"
      decimals="INF"
      id="ixv-267108"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205059_ClassMember" id="ixv-51577">
&#160;
&#160;
&#160;
&#160;
Bond Funds

49.1


Domestic Equity Funds

26.6


International Equity Funds

21.7


Short-Term Funds

2.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 49.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 26.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 21.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 2.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205059_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267109"
      unitRef="pure">0.491</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267110"
      unitRef="pure">0.266</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267111"
      unitRef="pure">0.217</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267112"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267113"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205059_ClassMember" id="ixv-51681">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

27.8


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.5


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

6.2


&#160;


Fidelity Series Emerging Markets Opportunities Fund

5.6


&#160;


Fidelity Series Large Cap Stock Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Advisor Series Equity Growth Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.8


&#160;


Fidelity Series International Value Fund

3.8


&#160;


Fidelity Series International Growth Fund

3.8


&#160;


&#160;

71.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205059_TH_0_Member"
      decimals="INF"
      id="ixv-267114"
      unitRef="pure">0.278</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_1_Member"
      decimals="INF"
      id="ixv-267115"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_2_Member"
      decimals="INF"
      id="ixv-267116"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_3_Member"
      decimals="INF"
      id="ixv-267117"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_4_Member"
      decimals="INF"
      id="ixv-267118"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_5_Member"
      decimals="INF"
      id="ixv-267119"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_6_Member"
      decimals="INF"
      id="ixv-267120"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_7_Member"
      decimals="INF"
      id="ixv-267121"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_8_Member"
      decimals="INF"
      id="ixv-267122"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205059_TH_9_Member"
      decimals="INF"
      id="ixv-267123"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205059_ClassMember" id="ixv-51806">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205059_ClassMember" id="ixv-51812">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205059_ClassMember" id="ixv-51816">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205059_ClassMember" id="ixv-51819">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205059_ClassMember" id="ixv-51823">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205059_ClassMember" id="ixv-51834">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-51892">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013212_ClassMember" id="ixv-51896">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013212_ClassMember" id="ixv-51907">Fidelity Advisor Freedom&#xae; 2020 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013212_ClassMember" id="ixv-51910">Fidelity Advisor Freedom&#xae; 2020 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013212_ClassMember" id="ixv-51914">FDTFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013212_ClassMember" id="ixv-51933">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2020 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013212_ClassMember" id="ixv-51935">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013212_ClassMember" id="ixv-51940">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013212_ClassMember" id="ixv-51942">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013212_ClassMember" id="ixv-51945">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013212_ClassMember" id="ixv-51948">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013212_ClassMember" id="ixv-51955">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;111&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.05&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013212_ClassMember"
      decimals="0"
      id="ixv-267124"
      unitRef="usd">111</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013212_ClassMember"
      decimals="INF"
      id="ixv-267125"
      unitRef="pure">0.0105</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013212_ClassMember" id="ixv-51997">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013212_ClassMember" id="ixv-52031">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$10,693


$11,653


$12,011


$11,484


$15,053


$15,051


$13,996


$15,445


$16,176


$18,078



Fidelity Freedom 2020 Composite Index&#x2120;


$10,000

$10,985


$11,972


$12,560


$12,362


$15,690


$15,962


$14,927


$16,526


$17,478


$19,413



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013212_LG_ClassMember_11YR" id="ixv-52052">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267126"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267127"
      unitRef="usd">10693</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267128"
      unitRef="usd">11653</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267129"
      unitRef="usd">12011</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267130"
      unitRef="usd">11484</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267131"
      unitRef="usd">15053</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267132"
      unitRef="usd">15051</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267133"
      unitRef="usd">13996</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267134"
      unitRef="usd">15445</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267135"
      unitRef="usd">16176</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267136"
      unitRef="usd">18078</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013212_LG_1_AdditionalIndexMember_11YR"
      id="ixv-52101">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2020 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267137"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267138"
      unitRef="usd">10985</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267139"
      unitRef="usd">11972</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267140"
      unitRef="usd">12560</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267141"
      unitRef="usd">12362</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267142"
      unitRef="usd">15690</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267143"
      unitRef="usd">15962</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267144"
      unitRef="usd">14927</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267145"
      unitRef="usd">16526</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267146"
      unitRef="usd">17478</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267147"
      unitRef="usd">19413</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013212_LG_2_AdditionalIndexMember_11YR"
      id="ixv-52150">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267148"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267149"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267150"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267151"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267152"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267153"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267154"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267155"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267156"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267157"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013212_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267158"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013212_ClassMember" id="ixv-52251">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

7.84%

2.99%


6.10%


Class M (without 3.50% sales charge)

11.75%

3.73%

6.48%


Fidelity Freedom 2020 Composite Index&#x2120;

11.08%


4.35%


6.86%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_ClassMember_1YR"
      decimals="INF"
      id="ixv-267159"
      unitRef="pure">0.0784</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_ClassMember_5YR"
      decimals="INF"
      id="ixv-267160"
      unitRef="pure">0.0299</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_ClassMember_10YR"
      decimals="INF"
      id="ixv-267161"
      unitRef="pure">0.0610</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267162"
      unitRef="pure">0.1175</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267163"
      unitRef="pure">0.0373</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267164"
      unitRef="pure">0.0648</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267165"
      unitRef="pure">0.1108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267166"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267167"
      unitRef="pure">0.0686</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267168"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267169"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013212_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267170"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013212_ClassMember" id="ixv-52336">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013212_ClassMember" id="ixv-52348">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013212_ClassMember" id="ixv-52352">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013212_ClassMember" id="ixv-52358">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,039,651,935&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;5,346,237&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013212_InstantMember"
      decimals="0"
      id="ixv-267171"
      unitRef="usd">1039651935</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-267172"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013212_ClassMember"
      decimals="0"
      id="ixv-267173"
      unitRef="usd">5346237</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013212_ClassMember"
      decimals="INF"
      id="ixv-267174"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013212_ClassMember" id="ixv-52433">
&#160;
&#160;
&#160;
&#160;
Bond Funds

49.1


Domestic Equity Funds

26.6


International Equity Funds

21.7


Short-Term Funds

2.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 49.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 26.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 21.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 2.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013212_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267175"
      unitRef="pure">0.491</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267176"
      unitRef="pure">0.266</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267177"
      unitRef="pure">0.217</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267178"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267179"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013212_ClassMember" id="ixv-52537">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

27.8


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.5


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

6.2


&#160;


Fidelity Series Emerging Markets Opportunities Fund

5.6


&#160;


Fidelity Series Large Cap Stock Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Advisor Series Equity Growth Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.8


&#160;


Fidelity Series International Value Fund

3.8


&#160;


Fidelity Series International Growth Fund

3.8


&#160;


&#160;

71.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013212_TH_0_Member"
      decimals="INF"
      id="ixv-267180"
      unitRef="pure">0.278</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_1_Member"
      decimals="INF"
      id="ixv-267181"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_2_Member"
      decimals="INF"
      id="ixv-267182"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_3_Member"
      decimals="INF"
      id="ixv-267183"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_4_Member"
      decimals="INF"
      id="ixv-267184"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_5_Member"
      decimals="INF"
      id="ixv-267185"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_6_Member"
      decimals="INF"
      id="ixv-267186"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_7_Member"
      decimals="INF"
      id="ixv-267187"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_8_Member"
      decimals="INF"
      id="ixv-267188"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013212_TH_9_Member"
      decimals="INF"
      id="ixv-267189"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013212_ClassMember" id="ixv-52662">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013212_ClassMember" id="ixv-52668">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013212_ClassMember" id="ixv-52672">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013212_ClassMember" id="ixv-52675">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013212_ClassMember" id="ixv-52679">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013212_ClassMember" id="ixv-52690">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013212_ClassMember" id="ixv-52697">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-52753">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013213_ClassMember" id="ixv-52757">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013213_ClassMember" id="ixv-52768">Fidelity Advisor Freedom&#xae; 2020 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013213_ClassMember" id="ixv-52771">Fidelity Advisor Freedom&#xae; 2020 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013213_ClassMember" id="ixv-52775">FDIFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013213_ClassMember" id="ixv-52794">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2020 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013213_ClassMember" id="ixv-52796">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013213_ClassMember" id="ixv-52801">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013213_ClassMember" id="ixv-52803">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013213_ClassMember" id="ixv-52806">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013213_ClassMember" id="ixv-52809">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013213_ClassMember" id="ixv-52816">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;58&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.55&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013213_ClassMember"
      decimals="0"
      id="ixv-267190"
      unitRef="usd">58</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013213_ClassMember"
      decimals="INF"
      id="ixv-267191"
      unitRef="pure">0.0055</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013213_ClassMember" id="ixv-52858">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013213_ClassMember" id="ixv-52892">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,136


$12,188


$12,628


$12,140


$15,988


$16,074


$15,024


$16,657


$17,537


$19,684



Fidelity Freedom 2020 Composite Index&#x2120;


$10,000

$10,985


$11,972


$12,560


$12,362


$15,690


$15,962


$14,927


$16,526


$17,478


$19,413



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013213_LG_ClassMember_11YR" id="ixv-52911">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267192"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267193"
      unitRef="usd">11136</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267194"
      unitRef="usd">12188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267195"
      unitRef="usd">12628</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267196"
      unitRef="usd">12140</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267197"
      unitRef="usd">15988</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267198"
      unitRef="usd">16074</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267199"
      unitRef="usd">15024</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267200"
      unitRef="usd">16657</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267201"
      unitRef="usd">17537</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267202"
      unitRef="usd">19684</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013213_LG_1_AdditionalIndexMember_11YR"
      id="ixv-52960">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2020 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267203"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267204"
      unitRef="usd">10985</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267205"
      unitRef="usd">11972</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267206"
      unitRef="usd">12560</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267207"
      unitRef="usd">12362</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267208"
      unitRef="usd">15690</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267209"
      unitRef="usd">15962</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267210"
      unitRef="usd">14927</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267211"
      unitRef="usd">16526</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267212"
      unitRef="usd">17478</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267213"
      unitRef="usd">19413</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013213_LG_2_AdditionalIndexMember_11YR"
      id="ixv-53009">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267214"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267215"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267216"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267217"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267218"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267219"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267220"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267221"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267222"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267223"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013213_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267224"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013213_ClassMember" id="ixv-53110">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

12.24%

4.25%

7.01%


Fidelity Freedom 2020 Composite Index&#x2120;

11.08%


4.35%


6.86%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267225"
      unitRef="pure">0.1224</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267226"
      unitRef="pure">0.0425</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267227"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267228"
      unitRef="pure">0.1108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267229"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267230"
      unitRef="pure">0.0686</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267231"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267232"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013213_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267233"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013213_ClassMember" id="ixv-53180">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013213_ClassMember" id="ixv-53192">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013213_ClassMember" id="ixv-53196">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013213_ClassMember" id="ixv-53202">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,039,651,935&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;5,346,237&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013213_InstantMember"
      decimals="0"
      id="ixv-267234"
      unitRef="usd">1039651935</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013213_InstantMember"
      decimals="INF"
      id="ixv-267235"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013213_ClassMember"
      decimals="0"
      id="ixv-267236"
      unitRef="usd">5346237</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013213_ClassMember"
      decimals="INF"
      id="ixv-267237"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013213_ClassMember" id="ixv-53277">
&#160;
&#160;
&#160;
&#160;
Bond Funds

49.1


Domestic Equity Funds

26.6


International Equity Funds

21.7


Short-Term Funds

2.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 49.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 26.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 21.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 2.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013213_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267238"
      unitRef="pure">0.491</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267239"
      unitRef="pure">0.266</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267240"
      unitRef="pure">0.217</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267241"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267242"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013213_ClassMember" id="ixv-53381">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

27.8


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.5


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

6.2


&#160;


Fidelity Series Emerging Markets Opportunities Fund

5.6


&#160;


Fidelity Series Large Cap Stock Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Advisor Series Equity Growth Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.8


&#160;


Fidelity Series International Value Fund

3.8


&#160;


Fidelity Series International Growth Fund

3.8


&#160;


&#160;

71.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013213_TH_0_Member"
      decimals="INF"
      id="ixv-267243"
      unitRef="pure">0.278</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_1_Member"
      decimals="INF"
      id="ixv-267244"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_2_Member"
      decimals="INF"
      id="ixv-267245"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_3_Member"
      decimals="INF"
      id="ixv-267246"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_4_Member"
      decimals="INF"
      id="ixv-267247"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_5_Member"
      decimals="INF"
      id="ixv-267248"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_6_Member"
      decimals="INF"
      id="ixv-267249"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_7_Member"
      decimals="INF"
      id="ixv-267250"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_8_Member"
      decimals="INF"
      id="ixv-267251"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013213_TH_9_Member"
      decimals="INF"
      id="ixv-267252"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013213_ClassMember" id="ixv-53506">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013213_ClassMember" id="ixv-53512">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013213_ClassMember" id="ixv-53516">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013213_ClassMember" id="ixv-53519">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013213_ClassMember" id="ixv-53523">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013213_ClassMember" id="ixv-53534">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013213_ClassMember" id="ixv-53541">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-53597">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013211_ClassMember" id="ixv-53601">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013211_ClassMember" id="ixv-53612">Fidelity Advisor Freedom&#xae; 2020 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013211_ClassMember" id="ixv-53615">Fidelity Advisor Freedom&#xae; 2020 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013211_ClassMember" id="ixv-53619">FDCFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013211_ClassMember" id="ixv-53638">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2020 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013211_ClassMember" id="ixv-53640">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013211_ClassMember" id="ixv-53645">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013211_ClassMember" id="ixv-53647">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013211_ClassMember" id="ixv-53650">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013211_ClassMember" id="ixv-53653">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013211_ClassMember" id="ixv-53660">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;163&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.55&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013211_ClassMember"
      decimals="0"
      id="ixv-267253"
      unitRef="usd">163</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013211_ClassMember"
      decimals="INF"
      id="ixv-267254"
      unitRef="pure">0.0155</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013211_ClassMember" id="ixv-53702">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013211_ClassMember" id="ixv-53736">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$11,026


$11,958


$12,262


$11,672


$15,217


$15,145


$14,012


$15,382


$16,160


$18,099



Fidelity Freedom 2020 Composite Index&#x2120;


$10,000

$10,985


$11,972


$12,560


$12,362


$15,690


$15,962


$14,927


$16,526


$17,478


$19,413



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013211_LG_ClassMember_11YR" id="ixv-53755">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267255"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267256"
      unitRef="usd">11026</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267257"
      unitRef="usd">11958</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267258"
      unitRef="usd">12262</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267259"
      unitRef="usd">11672</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267260"
      unitRef="usd">15217</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267261"
      unitRef="usd">15145</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267262"
      unitRef="usd">14012</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267263"
      unitRef="usd">15382</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267264"
      unitRef="usd">16160</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267265"
      unitRef="usd">18099</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013211_LG_1_AdditionalIndexMember_11YR"
      id="ixv-53804">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2020 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267266"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267267"
      unitRef="usd">10985</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267268"
      unitRef="usd">11972</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267269"
      unitRef="usd">12560</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267270"
      unitRef="usd">12362</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267271"
      unitRef="usd">15690</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267272"
      unitRef="usd">15962</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267273"
      unitRef="usd">14927</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267274"
      unitRef="usd">16526</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267275"
      unitRef="usd">17478</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267276"
      unitRef="usd">19413</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013211_LG_2_AdditionalIndexMember_11YR"
      id="ixv-53853">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267277"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267278"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267279"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267280"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267281"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267282"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267283"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267284"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267285"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267286"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013211_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267287"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013211_ClassMember" id="ixv-53954">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

10.17%

3.21%


6.11%


Class C

11.17%

3.21%

6.11%


Fidelity Freedom 2020 Composite Index&#x2120;

11.08%


4.35%


6.86%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_ClassMember_1YR"
      decimals="INF"
      id="ixv-267288"
      unitRef="pure">0.1017</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_ClassMember_5YR"
      decimals="INF"
      id="ixv-267289"
      unitRef="pure">0.0321</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_ClassMember_10YR"
      decimals="INF"
      id="ixv-267290"
      unitRef="pure">0.0611</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267291"
      unitRef="pure">0.1117</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267292"
      unitRef="pure">0.0321</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267293"
      unitRef="pure">0.0611</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267294"
      unitRef="pure">0.1108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267295"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267296"
      unitRef="pure">0.0686</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267297"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267298"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013211_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267299"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013211_ClassMember" id="ixv-54040">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013211_ClassMember" id="ixv-54052">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013211_ClassMember" id="ixv-54056">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013211_ClassMember" id="ixv-54062">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,039,651,935&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;5,346,237&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013211_InstantMember"
      decimals="0"
      id="ixv-267300"
      unitRef="usd">1039651935</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-267301"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-267302"
      unitRef="usd">5346237</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-267303"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013211_ClassMember" id="ixv-54137">
&#160;
&#160;
&#160;
&#160;
Bond Funds

49.1


Domestic Equity Funds

26.6


International Equity Funds

21.7


Short-Term Funds

2.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 49.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 26.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 21.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 2.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
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      decimals="INF"
      id="ixv-267304"
      unitRef="pure">0.491</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267305"
      unitRef="pure">0.266</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267306"
      unitRef="pure">0.217</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267307"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267308"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013211_ClassMember" id="ixv-54241">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

27.8


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.5


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

6.2


&#160;


Fidelity Series Emerging Markets Opportunities Fund

5.6


&#160;


Fidelity Series Large Cap Stock Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Advisor Series Equity Growth Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.8


&#160;


Fidelity Series International Value Fund

3.8


&#160;


Fidelity Series International Growth Fund

3.8


&#160;


&#160;

71.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013211_TH_0_Member"
      decimals="INF"
      id="ixv-267309"
      unitRef="pure">0.278</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_1_Member"
      decimals="INF"
      id="ixv-267310"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_2_Member"
      decimals="INF"
      id="ixv-267311"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_3_Member"
      decimals="INF"
      id="ixv-267312"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_4_Member"
      decimals="INF"
      id="ixv-267313"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_5_Member"
      decimals="INF"
      id="ixv-267314"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_6_Member"
      decimals="INF"
      id="ixv-267315"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_7_Member"
      decimals="INF"
      id="ixv-267316"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_8_Member"
      decimals="INF"
      id="ixv-267317"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013211_TH_9_Member"
      decimals="INF"
      id="ixv-267318"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013211_ClassMember" id="ixv-54366">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013211_ClassMember" id="ixv-54372">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013211_ClassMember" id="ixv-54376">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013211_ClassMember" id="ixv-54379">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013211_ClassMember" id="ixv-54383">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013211_ClassMember" id="ixv-54394">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013211_ClassMember" id="ixv-54401">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-54457">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013209_ClassMember" id="ixv-54461">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013209_ClassMember" id="ixv-54472">Fidelity Advisor Freedom&#xae; 2020 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013209_ClassMember" id="ixv-54475">Fidelity Advisor Freedom&#xae; 2020 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013209_ClassMember" id="ixv-54479">FDAFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013209_ClassMember" id="ixv-54498">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2020 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013209_ClassMember" id="ixv-54500">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013209_ClassMember" id="ixv-54505">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013209_ClassMember" id="ixv-54507">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013209_ClassMember" id="ixv-54510">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013209_ClassMember" id="ixv-54513">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013209_ClassMember" id="ixv-54520">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;85&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.80&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013209_ClassMember"
      decimals="0"
      id="ixv-267319"
      unitRef="usd">85</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013209_ClassMember"
      decimals="INF"
      id="ixv-267320"
      unitRef="pure">0.0080</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013209_ClassMember" id="ixv-54562">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013209_ClassMember" id="ixv-54596">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,478


$11,436


$11,825


$11,334


$14,891


$14,929


$13,913


$15,387


$16,166


$18,106



Fidelity Freedom 2020 Composite Index&#x2120;


$10,000

$10,985


$11,972


$12,560


$12,362


$15,690


$15,962


$14,927


$16,526


$17,478


$19,413



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013209_LG_ClassMember_11YR" id="ixv-54617">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267321"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267322"
      unitRef="usd">10478</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267323"
      unitRef="usd">11436</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267324"
      unitRef="usd">11825</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267325"
      unitRef="usd">11334</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267326"
      unitRef="usd">14891</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267327"
      unitRef="usd">14929</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267328"
      unitRef="usd">13913</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267329"
      unitRef="usd">15387</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267330"
      unitRef="usd">16166</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267331"
      unitRef="usd">18106</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013209_LG_1_AdditionalIndexMember_11YR"
      id="ixv-54666">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2020 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267332"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267333"
      unitRef="usd">10985</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267334"
      unitRef="usd">11972</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267335"
      unitRef="usd">12560</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267336"
      unitRef="usd">12362</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267337"
      unitRef="usd">15690</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267338"
      unitRef="usd">15962</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267339"
      unitRef="usd">14927</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267340"
      unitRef="usd">16526</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267341"
      unitRef="usd">17478</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267342"
      unitRef="usd">19413</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013209_LG_2_AdditionalIndexMember_11YR"
      id="ixv-54715">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267343"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267344"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267345"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267346"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267347"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267348"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267349"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267350"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267351"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267352"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013209_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267353"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013209_ClassMember" id="ixv-54816">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

5.56%

2.76%


6.12%


Class A (without 5.75% sales charge)

12.00%

3.99%

6.75%


Fidelity Freedom 2020 Composite Index&#x2120;

11.08%


4.35%


6.86%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_ClassMember_1YR"
      decimals="INF"
      id="ixv-267354"
      unitRef="pure">0.0556</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_ClassMember_5YR"
      decimals="INF"
      id="ixv-267355"
      unitRef="pure">0.0276</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_ClassMember_10YR"
      decimals="INF"
      id="ixv-267356"
      unitRef="pure">0.0612</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267357"
      unitRef="pure">0.1200</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267358"
      unitRef="pure">0.0399</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267359"
      unitRef="pure">0.0675</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267360"
      unitRef="pure">0.1108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267361"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267362"
      unitRef="pure">0.0686</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267363"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267364"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013209_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267365"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013209_ClassMember" id="ixv-54901">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013209_ClassMember" id="ixv-54913">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013209_ClassMember" id="ixv-54917">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013209_ClassMember" id="ixv-54923">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,039,651,935&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;46&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;5,346,237&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;17&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013209_InstantMember"
      decimals="0"
      id="ixv-267366"
      unitRef="usd">1039651935</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013209_InstantMember"
      decimals="INF"
      id="ixv-267367"
      unitRef="holding">46</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013209_ClassMember"
      decimals="0"
      id="ixv-267368"
      unitRef="usd">5346237</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013209_ClassMember"
      decimals="INF"
      id="ixv-267369"
      unitRef="pure">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013209_ClassMember" id="ixv-54998">
&#160;
&#160;
&#160;
&#160;
Bond Funds

49.1


Domestic Equity Funds

26.6


International Equity Funds

21.7


Short-Term Funds

2.2


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 49.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 26.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 21.7&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 2.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013209_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267370"
      unitRef="pure">0.491</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267371"
      unitRef="pure">0.266</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267372"
      unitRef="pure">0.217</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267373"
      unitRef="pure">0.022</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267374"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013209_ClassMember" id="ixv-55102">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

27.8


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

6.5


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

6.2


&#160;


Fidelity Series Emerging Markets Opportunities Fund

5.6


&#160;


Fidelity Series Large Cap Stock Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Advisor Series Equity Growth Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.8


&#160;


Fidelity Series International Value Fund

3.8


&#160;


Fidelity Series International Growth Fund

3.8


&#160;


&#160;

71.3

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013209_TH_0_Member"
      decimals="INF"
      id="ixv-267375"
      unitRef="pure">0.278</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_1_Member"
      decimals="INF"
      id="ixv-267376"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_2_Member"
      decimals="INF"
      id="ixv-267377"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_3_Member"
      decimals="INF"
      id="ixv-267378"
      unitRef="pure">0.056</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_4_Member"
      decimals="INF"
      id="ixv-267379"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_5_Member"
      decimals="INF"
      id="ixv-267380"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_6_Member"
      decimals="INF"
      id="ixv-267381"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_7_Member"
      decimals="INF"
      id="ixv-267382"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_8_Member"
      decimals="INF"
      id="ixv-267383"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013209_TH_9_Member"
      decimals="INF"
      id="ixv-267384"
      unitRef="pure">0.038</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013209_ClassMember" id="ixv-55227">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013209_ClassMember" id="ixv-55233">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013209_ClassMember" id="ixv-55237">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013209_ClassMember" id="ixv-55240">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013209_ClassMember" id="ixv-55244">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013209_ClassMember" id="ixv-55255">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013209_ClassMember" id="ixv-55262">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-55318">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182214_ClassMember" id="ixv-55322">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182214_ClassMember" id="ixv-55333">Fidelity Advisor Freedom&#xae; 2015 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182214_ClassMember" id="ixv-55336">Fidelity Advisor Freedom&#xae; 2015 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182214_ClassMember" id="ixv-55340">FIGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182214_ClassMember" id="ixv-55359">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2015 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182214_ClassMember" id="ixv-55361">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182214_ClassMember" id="ixv-55366">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182214_ClassMember" id="ixv-55368">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182214_ClassMember" id="ixv-55371">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182214_ClassMember" id="ixv-55374">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182214_ClassMember" id="ixv-55381">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;27&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.26&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182214_ClassMember"
      decimals="0"
      id="ixv-267385"
      unitRef="usd">27</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182214_ClassMember"
      decimals="INF"
      id="ixv-267386"
      unitRef="pure">0.0026</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182214_ClassMember" id="ixv-55423">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182214_ClassMember" id="ixv-55457">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,542


$10,943


$10,681


$13,547


$13,590


$12,817


$14,021


$14,816


$16,441



Fidelity Freedom 2015 Composite Index&#x2120;


$10,000

$10,523


$11,030


$11,014


$13,462


$13,618


$12,848


$14,023


$14,823


$16,245



Bloomberg U.S. Aggregate Bond Index


$10,000

$9,938


$10,384


$11,311


$11,392


$10,919


$10,396


$10,573


$11,089


$11,571



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182214_LG_ClassMember_10YR" id="ixv-55476">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267387"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267388"
      unitRef="usd">10542</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267389"
      unitRef="usd">10943</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267390"
      unitRef="usd">10681</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267391"
      unitRef="usd">13547</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267392"
      unitRef="usd">13590</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267393"
      unitRef="usd">12817</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267394"
      unitRef="usd">14021</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267395"
      unitRef="usd">14816</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267396"
      unitRef="usd">16441</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182214_LG_1_AdditionalIndexMember_10YR"
      id="ixv-55521">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2015 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267397"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267398"
      unitRef="usd">10523</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267399"
      unitRef="usd">11030</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267400"
      unitRef="usd">11014</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267401"
      unitRef="usd">13462</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267402"
      unitRef="usd">13618</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267403"
      unitRef="usd">12848</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267404"
      unitRef="usd">14023</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267405"
      unitRef="usd">14823</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267406"
      unitRef="usd">16245</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182214_LG_2_AdditionalIndexMember_10YR"
      id="ixv-55566">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267407"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267408"
      unitRef="usd">9938</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267409"
      unitRef="usd">10384</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267410"
      unitRef="usd">11311</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267411"
      unitRef="usd">11392</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267412"
      unitRef="usd">10919</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267413"
      unitRef="usd">10396</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267414"
      unitRef="usd">10573</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267415"
      unitRef="usd">11089</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182214_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267416"
      unitRef="usd">11571</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182214_ClassMember" id="ixv-55660">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

10.97%

3.95%

5.80%


Fidelity Freedom 2015 Composite Index&#x2120;

9.59%


3.83%


5.65%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.67%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267417"
      unitRef="pure">0.1097</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267418"
      unitRef="pure">0.0395</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-267419"
      unitRef="pure">0.0580</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267420"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267421"
      unitRef="pure">0.0383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-267422"
      unitRef="pure">0.0565</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267423"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267424"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182214_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-267425"
      unitRef="pure">0.0167</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182214_Perf_2017-06-06_ClassMember"
      id="ixv-55729">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182214_ClassMember" id="ixv-55739">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182214_ClassMember" id="ixv-55751">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182214_ClassMember" id="ixv-55755">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182214_ClassMember" id="ixv-55761">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;407,173,770&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,944,056&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="0"
      id="ixv-267426"
      unitRef="usd">407173770</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      id="ixv-267427"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-267428"
      unitRef="usd">1944056</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-267429"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182214_ClassMember" id="ixv-55836">
&#160;
&#160;
&#160;
&#160;
Bond Funds

54.3


Domestic Equity Funds

22.1


International Equity Funds

18.6


Short-Term Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 54.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 22.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 18.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182214_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267430"
      unitRef="pure">0.543</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267431"
      unitRef="pure">0.221</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267432"
      unitRef="pure">0.186</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267433"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267434"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182214_ClassMember" id="ixv-55940">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

30.2


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

11.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.9


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Large Cap Stock Fund

4.3


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

3.9


&#160;


Fidelity Series Government Money Market Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.1


&#160;


Fidelity Series International Value Fund

3.1


&#160;


Fidelity Series International Growth Fund

3.1


&#160;


&#160;

72.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182214_TH_0_Member"
      decimals="INF"
      id="ixv-267435"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_1_Member"
      decimals="INF"
      id="ixv-267436"
      unitRef="pure">0.117</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_2_Member"
      decimals="INF"
      id="ixv-267437"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_3_Member"
      decimals="INF"
      id="ixv-267438"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_4_Member"
      decimals="INF"
      id="ixv-267439"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_5_Member"
      decimals="INF"
      id="ixv-267440"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_6_Member"
      decimals="INF"
      id="ixv-267441"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_7_Member"
      decimals="INF"
      id="ixv-267442"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_8_Member"
      decimals="INF"
      id="ixv-267443"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182214_TH_9_Member"
      decimals="INF"
      id="ixv-267444"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182214_ClassMember" id="ixv-56065">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182214_ClassMember" id="ixv-56071">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182214_ClassMember" id="ixv-56075">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182214_ClassMember" id="ixv-56078">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182214_ClassMember" id="ixv-56082">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182214_ClassMember" id="ixv-56093">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-56151">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205058_ClassMember" id="ixv-56155">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205058_ClassMember" id="ixv-56166">Fidelity Advisor Freedom&#xae; 2015 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205058_ClassMember" id="ixv-56169">Fidelity Advisor Freedom&#xae; 2015 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205058_ClassMember" id="ixv-56173">FIJKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205058_ClassMember" id="ixv-56192">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2015 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205058_ClassMember" id="ixv-56194">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205058_ClassMember" id="ixv-56199">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205058_ClassMember" id="ixv-56201">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205058_ClassMember" id="ixv-56204">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205058_ClassMember" id="ixv-56207">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205058_ClassMember" id="ixv-56214">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;47&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205058_ClassMember"
      decimals="0"
      id="ixv-267445"
      unitRef="usd">47</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205058_ClassMember"
      decimals="INF"
      id="ixv-267446"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205058_ClassMember" id="ixv-56256">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205058_ClassMember" id="ixv-56290">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$10,129


$9,878


$12,527


$12,558


$11,832


$12,915


$13,616


$15,077



Fidelity Freedom 2015 Composite Index&#x2120;


$10,000

$10,139


$10,125


$12,376


$12,519


$11,811


$12,891


$13,627


$14,934



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,460


$11,395


$11,476


$10,999


$10,473


$10,651


$11,171


$11,657



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205058_LG_ClassMember_9YR" id="ixv-56309">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267447"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267448"
      unitRef="usd">10129</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267449"
      unitRef="usd">9878</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267450"
      unitRef="usd">12527</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267451"
      unitRef="usd">12558</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267452"
      unitRef="usd">11832</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267453"
      unitRef="usd">12915</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267454"
      unitRef="usd">13616</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267455"
      unitRef="usd">15077</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205058_LG_1_AdditionalIndexMember_9YR"
      id="ixv-56350">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2015 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267456"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267457"
      unitRef="usd">10139</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267458"
      unitRef="usd">10125</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267459"
      unitRef="usd">12376</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267460"
      unitRef="usd">12519</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267461"
      unitRef="usd">11811</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267462"
      unitRef="usd">12891</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267463"
      unitRef="usd">13627</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267464"
      unitRef="usd">14934</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205058_LG_2_AdditionalIndexMember_9YR"
      id="ixv-56391">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267465"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267466"
      unitRef="usd">10460</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267467"
      unitRef="usd">11395</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267468"
      unitRef="usd">11476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267469"
      unitRef="usd">10999</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267470"
      unitRef="usd">10473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267471"
      unitRef="usd">10651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267472"
      unitRef="usd">11171</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205058_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267473"
      unitRef="usd">11657</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205058_ClassMember" id="ixv-56478">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

10.73%

3.77%

5.63%


Fidelity Freedom 2015 Composite Index&#x2120;

9.59%


3.83%


5.49%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


2.07%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267474"
      unitRef="pure">0.1073</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267475"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-267476"
      unitRef="pure">0.0563</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267477"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267478"
      unitRef="pure">0.0383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-267479"
      unitRef="pure">0.0549</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267480"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267481"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205058_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-267482"
      unitRef="pure">0.0207</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205058_Perf_2018-10-02_ClassMember"
      id="ixv-56547">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205058_ClassMember" id="ixv-56557">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205058_ClassMember" id="ixv-56569">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205058_ClassMember" id="ixv-56573">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205058_ClassMember" id="ixv-56579">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;407,173,770&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,944,056&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205058_InstantMember"
      decimals="0"
      id="ixv-267483"
      unitRef="usd">407173770</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205058_InstantMember"
      decimals="INF"
      id="ixv-267484"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205058_ClassMember"
      decimals="0"
      id="ixv-267485"
      unitRef="usd">1944056</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205058_ClassMember"
      decimals="INF"
      id="ixv-267486"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205058_ClassMember" id="ixv-56654">
&#160;
&#160;
&#160;
&#160;
Bond Funds

54.3


Domestic Equity Funds

22.1


International Equity Funds

18.6


Short-Term Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 54.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 22.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 18.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205058_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267487"
      unitRef="pure">0.543</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267488"
      unitRef="pure">0.221</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267489"
      unitRef="pure">0.186</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267490"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267491"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205058_ClassMember" id="ixv-56758">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

30.2


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

11.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.9


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Large Cap Stock Fund

4.3


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

3.9


&#160;


Fidelity Series Government Money Market Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.1


&#160;


Fidelity Series International Value Fund

3.1


&#160;


Fidelity Series International Growth Fund

3.1


&#160;


&#160;

72.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205058_TH_0_Member"
      decimals="INF"
      id="ixv-267492"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_1_Member"
      decimals="INF"
      id="ixv-267493"
      unitRef="pure">0.117</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_2_Member"
      decimals="INF"
      id="ixv-267494"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_3_Member"
      decimals="INF"
      id="ixv-267495"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_4_Member"
      decimals="INF"
      id="ixv-267496"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_5_Member"
      decimals="INF"
      id="ixv-267497"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_6_Member"
      decimals="INF"
      id="ixv-267498"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_7_Member"
      decimals="INF"
      id="ixv-267499"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_8_Member"
      decimals="INF"
      id="ixv-267500"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205058_TH_9_Member"
      decimals="INF"
      id="ixv-267501"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205058_ClassMember" id="ixv-56883">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205058_ClassMember" id="ixv-56889">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205058_ClassMember" id="ixv-56893">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205058_ClassMember" id="ixv-56896">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205058_ClassMember" id="ixv-56900">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205058_ClassMember" id="ixv-56911">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-56969">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013207_ClassMember" id="ixv-56973">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013207_ClassMember" id="ixv-56984">Fidelity Advisor Freedom&#xae; 2015 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013207_ClassMember" id="ixv-56987">Fidelity Advisor Freedom&#xae; 2015 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013207_ClassMember" id="ixv-56991">FFVTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013207_ClassMember" id="ixv-57010">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2015 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013207_ClassMember" id="ixv-57012">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013207_ClassMember" id="ixv-57017">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013207_ClassMember" id="ixv-57019">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013207_ClassMember" id="ixv-57022">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013207_ClassMember" id="ixv-57025">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013207_ClassMember" id="ixv-57032">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;105&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.00&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013207_ClassMember"
      decimals="0"
      id="ixv-267502"
      unitRef="usd">105</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013207_ClassMember"
      decimals="INF"
      id="ixv-267503"
      unitRef="pure">0.0100</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013207_ClassMember" id="ixv-57074">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013207_ClassMember" id="ixv-57108">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$10,613


$11,473


$11,818


$11,464


$14,460


$14,409


$13,500


$14,664


$15,365


$16,919



Fidelity Freedom 2015 Composite Index&#x2120;


$10,000

$10,888


$11,772


$12,339


$12,321


$15,060


$15,235


$14,373


$15,688


$16,583


$18,173



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013207_LG_ClassMember_11YR" id="ixv-57129">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267504"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267505"
      unitRef="usd">10613</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267506"
      unitRef="usd">11473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267507"
      unitRef="usd">11818</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267508"
      unitRef="usd">11464</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267509"
      unitRef="usd">14460</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267510"
      unitRef="usd">14409</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267511"
      unitRef="usd">13500</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267512"
      unitRef="usd">14664</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267513"
      unitRef="usd">15365</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267514"
      unitRef="usd">16919</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013207_LG_1_AdditionalIndexMember_11YR"
      id="ixv-57178">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2015 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267515"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267516"
      unitRef="usd">10888</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267517"
      unitRef="usd">11772</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267518"
      unitRef="usd">12339</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267519"
      unitRef="usd">12321</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267520"
      unitRef="usd">15060</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267521"
      unitRef="usd">15235</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267522"
      unitRef="usd">14373</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267523"
      unitRef="usd">15688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267524"
      unitRef="usd">16583</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267525"
      unitRef="usd">18173</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013207_LG_2_AdditionalIndexMember_11YR"
      id="ixv-57227">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267526"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267527"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267528"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267529"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267530"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267531"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267532"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267533"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267534"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267535"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013207_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267536"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013207_ClassMember" id="ixv-57328">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

6.26%

2.46%


5.40%


Class M (without 3.50% sales charge)

10.11%

3.19%

5.78%


Fidelity Freedom 2015 Composite Index&#x2120;

9.59%


3.83%


6.16%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_ClassMember_1YR"
      decimals="INF"
      id="ixv-267537"
      unitRef="pure">0.0626</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_ClassMember_5YR"
      decimals="INF"
      id="ixv-267538"
      unitRef="pure">0.0246</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_ClassMember_10YR"
      decimals="INF"
      id="ixv-267539"
      unitRef="pure">0.0540</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267540"
      unitRef="pure">0.1011</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267541"
      unitRef="pure">0.0319</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267542"
      unitRef="pure">0.0578</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267543"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267544"
      unitRef="pure">0.0383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267545"
      unitRef="pure">0.0616</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267546"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267547"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013207_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267548"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013207_ClassMember" id="ixv-57413">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013207_ClassMember" id="ixv-57425">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013207_ClassMember" id="ixv-57429">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013207_ClassMember" id="ixv-57435">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;407,173,770&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,944,056&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013207_InstantMember"
      decimals="0"
      id="ixv-267549"
      unitRef="usd">407173770</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-267550"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
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      decimals="0"
      id="ixv-267551"
      unitRef="usd">1944056</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
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      decimals="INF"
      id="ixv-267552"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013207_ClassMember" id="ixv-57510">
&#160;
&#160;
&#160;
&#160;
Bond Funds

54.3


Domestic Equity Funds

22.1


International Equity Funds

18.6


Short-Term Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 54.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 22.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 18.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013207_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267553"
      unitRef="pure">0.543</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267554"
      unitRef="pure">0.221</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267555"
      unitRef="pure">0.186</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267556"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267557"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013207_ClassMember" id="ixv-57614">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

30.2


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

11.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.9


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Large Cap Stock Fund

4.3


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

3.9


&#160;


Fidelity Series Government Money Market Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.1


&#160;


Fidelity Series International Value Fund

3.1


&#160;


Fidelity Series International Growth Fund

3.1


&#160;


&#160;

72.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013207_TH_0_Member"
      decimals="INF"
      id="ixv-267558"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_1_Member"
      decimals="INF"
      id="ixv-267559"
      unitRef="pure">0.117</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_2_Member"
      decimals="INF"
      id="ixv-267560"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_3_Member"
      decimals="INF"
      id="ixv-267561"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_4_Member"
      decimals="INF"
      id="ixv-267562"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_5_Member"
      decimals="INF"
      id="ixv-267563"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_6_Member"
      decimals="INF"
      id="ixv-267564"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_7_Member"
      decimals="INF"
      id="ixv-267565"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_8_Member"
      decimals="INF"
      id="ixv-267566"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013207_TH_9_Member"
      decimals="INF"
      id="ixv-267567"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013207_ClassMember" id="ixv-57739">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013207_ClassMember" id="ixv-57745">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013207_ClassMember" id="ixv-57749">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013207_ClassMember" id="ixv-57752">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013207_ClassMember" id="ixv-57756">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013207_ClassMember" id="ixv-57767">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013207_ClassMember" id="ixv-57774">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-57830">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013208_ClassMember" id="ixv-57834">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013208_ClassMember" id="ixv-57845">Fidelity Advisor Freedom&#xae; 2015 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013208_ClassMember" id="ixv-57848">Fidelity Advisor Freedom&#xae; 2015 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013208_ClassMember" id="ixv-57852">FFVIX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013208_ClassMember" id="ixv-57871">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2015 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013208_ClassMember" id="ixv-57873">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013208_ClassMember" id="ixv-57878">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013208_ClassMember" id="ixv-57880">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013208_ClassMember" id="ixv-57883">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013208_ClassMember" id="ixv-57886">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013208_ClassMember" id="ixv-57893">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;53&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013208_ClassMember"
      decimals="0"
      id="ixv-267568"
      unitRef="usd">53</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013208_ClassMember"
      decimals="INF"
      id="ixv-267569"
      unitRef="pure">0.0050</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013208_ClassMember" id="ixv-57935">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013208_ClassMember" id="ixv-57969">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$11,053


$12,010


$12,436


$12,125


$15,364


$15,396


$14,497


$15,820


$16,667


$18,437



Fidelity Freedom 2015 Composite Index&#x2120;


$10,000

$10,888


$11,772


$12,339


$12,321


$15,060


$15,235


$14,373


$15,688


$16,583


$18,173



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013208_LG_ClassMember_11YR" id="ixv-57988">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267570"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267571"
      unitRef="usd">11053</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267572"
      unitRef="usd">12010</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267573"
      unitRef="usd">12436</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267574"
      unitRef="usd">12125</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267575"
      unitRef="usd">15364</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267576"
      unitRef="usd">15396</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267577"
      unitRef="usd">14497</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267578"
      unitRef="usd">15820</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267579"
      unitRef="usd">16667</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267580"
      unitRef="usd">18437</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013208_LG_1_AdditionalIndexMember_11YR"
      id="ixv-58037">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2015 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267581"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267582"
      unitRef="usd">10888</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267583"
      unitRef="usd">11772</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267584"
      unitRef="usd">12339</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267585"
      unitRef="usd">12321</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267586"
      unitRef="usd">15060</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267587"
      unitRef="usd">15235</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267588"
      unitRef="usd">14373</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267589"
      unitRef="usd">15688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267590"
      unitRef="usd">16583</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267591"
      unitRef="usd">18173</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013208_LG_2_AdditionalIndexMember_11YR"
      id="ixv-58086">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267592"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267593"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267594"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267595"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267596"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267597"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267598"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267599"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267600"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267601"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013208_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267602"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013208_ClassMember" id="ixv-58187">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

10.62%

3.71%

6.31%


Fidelity Freedom 2015 Composite Index&#x2120;

9.59%


3.83%


6.16%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267603"
      unitRef="pure">0.1062</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267604"
      unitRef="pure">0.0371</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267605"
      unitRef="pure">0.0631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267606"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267607"
      unitRef="pure">0.0383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267608"
      unitRef="pure">0.0616</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267609"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267610"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013208_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267611"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013208_ClassMember" id="ixv-58257">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013208_ClassMember" id="ixv-58269">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013208_ClassMember" id="ixv-58273">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013208_ClassMember" id="ixv-58279">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;407,173,770&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,944,056&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013208_InstantMember"
      decimals="0"
      id="ixv-267612"
      unitRef="usd">407173770</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013208_InstantMember"
      decimals="INF"
      id="ixv-267613"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013208_ClassMember"
      decimals="0"
      id="ixv-267614"
      unitRef="usd">1944056</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013208_ClassMember"
      decimals="INF"
      id="ixv-267615"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013208_ClassMember" id="ixv-58354">
&#160;
&#160;
&#160;
&#160;
Bond Funds

54.3


Domestic Equity Funds

22.1


International Equity Funds

18.6


Short-Term Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 54.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 22.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 18.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013208_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267616"
      unitRef="pure">0.543</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267617"
      unitRef="pure">0.221</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267618"
      unitRef="pure">0.186</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267619"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267620"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013208_ClassMember" id="ixv-58458">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

30.2


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

11.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.9


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Large Cap Stock Fund

4.3


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

3.9


&#160;


Fidelity Series Government Money Market Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.1


&#160;


Fidelity Series International Value Fund

3.1


&#160;


Fidelity Series International Growth Fund

3.1


&#160;


&#160;

72.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013208_TH_0_Member"
      decimals="INF"
      id="ixv-267621"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_1_Member"
      decimals="INF"
      id="ixv-267622"
      unitRef="pure">0.117</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_2_Member"
      decimals="INF"
      id="ixv-267623"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_3_Member"
      decimals="INF"
      id="ixv-267624"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_4_Member"
      decimals="INF"
      id="ixv-267625"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_5_Member"
      decimals="INF"
      id="ixv-267626"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_6_Member"
      decimals="INF"
      id="ixv-267627"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_7_Member"
      decimals="INF"
      id="ixv-267628"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_8_Member"
      decimals="INF"
      id="ixv-267629"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013208_TH_9_Member"
      decimals="INF"
      id="ixv-267630"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013208_ClassMember" id="ixv-58583">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013208_ClassMember" id="ixv-58589">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013208_ClassMember" id="ixv-58593">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013208_ClassMember" id="ixv-58596">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013208_ClassMember" id="ixv-58600">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013208_ClassMember" id="ixv-58611">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013208_ClassMember" id="ixv-58618">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-58674">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013206_ClassMember" id="ixv-58678">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013206_ClassMember" id="ixv-58689">Fidelity Advisor Freedom&#xae; 2015 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013206_ClassMember" id="ixv-58692">Fidelity Advisor Freedom&#xae; 2015 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013206_ClassMember" id="ixv-58696">FFVCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013206_ClassMember" id="ixv-58715">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2015 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013206_ClassMember" id="ixv-58717">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013206_ClassMember" id="ixv-58722">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013206_ClassMember" id="ixv-58724">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013206_ClassMember" id="ixv-58727">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013206_ClassMember" id="ixv-58730">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013206_ClassMember" id="ixv-58737">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;157&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013206_ClassMember"
      decimals="0"
      id="ixv-267631"
      unitRef="usd">157</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013206_ClassMember"
      decimals="INF"
      id="ixv-267632"
      unitRef="pure">0.0150</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013206_ClassMember" id="ixv-58779">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013206_ClassMember" id="ixv-58813">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$10,933


$11,760


$12,065


$11,645


$14,598


$14,490


$13,501


$14,588


$15,328


$16,915



Fidelity Freedom 2015 Composite Index&#x2120;


$10,000

$10,888


$11,772


$12,339


$12,321


$15,060


$15,235


$14,373


$15,688


$16,583


$18,173



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013206_LG_ClassMember_11YR" id="ixv-58832">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267633"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267634"
      unitRef="usd">10933</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267635"
      unitRef="usd">11760</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267636"
      unitRef="usd">12065</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267637"
      unitRef="usd">11645</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267638"
      unitRef="usd">14598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267639"
      unitRef="usd">14490</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267640"
      unitRef="usd">13501</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267641"
      unitRef="usd">14588</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267642"
      unitRef="usd">15328</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267643"
      unitRef="usd">16915</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013206_LG_1_AdditionalIndexMember_11YR"
      id="ixv-58881">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2015 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267644"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267645"
      unitRef="usd">10888</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267646"
      unitRef="usd">11772</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267647"
      unitRef="usd">12339</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267648"
      unitRef="usd">12321</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267649"
      unitRef="usd">15060</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267650"
      unitRef="usd">15235</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267651"
      unitRef="usd">14373</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267652"
      unitRef="usd">15688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267653"
      unitRef="usd">16583</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267654"
      unitRef="usd">18173</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013206_LG_2_AdditionalIndexMember_11YR"
      id="ixv-58930">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267655"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267656"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267657"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267658"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267659"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267660"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267661"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267662"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267663"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267664"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013206_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267665"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013206_ClassMember" id="ixv-59031">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

8.65%

2.70%


5.40%


Class C

9.65%

2.70%

5.40%


Fidelity Freedom 2015 Composite Index&#x2120;

9.59%


3.83%


6.16%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_ClassMember_1YR"
      decimals="INF"
      id="ixv-267666"
      unitRef="pure">0.0865</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_ClassMember_5YR"
      decimals="INF"
      id="ixv-267667"
      unitRef="pure">0.0270</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_ClassMember_10YR"
      decimals="INF"
      id="ixv-267668"
      unitRef="pure">0.0540</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267669"
      unitRef="pure">0.0965</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267670"
      unitRef="pure">0.0270</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267671"
      unitRef="pure">0.0540</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267672"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267673"
      unitRef="pure">0.0383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267674"
      unitRef="pure">0.0616</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267675"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267676"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013206_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267677"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013206_ClassMember" id="ixv-59117">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013206_ClassMember" id="ixv-59129">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013206_ClassMember" id="ixv-59133">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013206_ClassMember" id="ixv-59139">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;407,173,770&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,944,056&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013206_InstantMember"
      decimals="0"
      id="ixv-267678"
      unitRef="usd">407173770</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-267679"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013206_ClassMember"
      decimals="0"
      id="ixv-267680"
      unitRef="usd">1944056</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013206_ClassMember"
      decimals="INF"
      id="ixv-267681"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013206_ClassMember" id="ixv-59214">
&#160;
&#160;
&#160;
&#160;
Bond Funds

54.3


Domestic Equity Funds

22.1


International Equity Funds

18.6


Short-Term Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 54.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 22.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 18.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013206_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267682"
      unitRef="pure">0.543</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267683"
      unitRef="pure">0.221</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267684"
      unitRef="pure">0.186</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267685"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267686"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013206_ClassMember" id="ixv-59318">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

30.2


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

11.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.9


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Large Cap Stock Fund

4.3


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

3.9


&#160;


Fidelity Series Government Money Market Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.1


&#160;


Fidelity Series International Value Fund

3.1


&#160;


Fidelity Series International Growth Fund

3.1


&#160;


&#160;

72.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013206_TH_0_Member"
      decimals="INF"
      id="ixv-267687"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_1_Member"
      decimals="INF"
      id="ixv-267688"
      unitRef="pure">0.117</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_2_Member"
      decimals="INF"
      id="ixv-267689"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_3_Member"
      decimals="INF"
      id="ixv-267690"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_4_Member"
      decimals="INF"
      id="ixv-267691"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_5_Member"
      decimals="INF"
      id="ixv-267692"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_6_Member"
      decimals="INF"
      id="ixv-267693"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_7_Member"
      decimals="INF"
      id="ixv-267694"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_8_Member"
      decimals="INF"
      id="ixv-267695"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013206_TH_9_Member"
      decimals="INF"
      id="ixv-267696"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013206_ClassMember" id="ixv-59443">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013206_ClassMember" id="ixv-59449">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013206_ClassMember" id="ixv-59453">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013206_ClassMember" id="ixv-59456">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013206_ClassMember" id="ixv-59460">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013206_ClassMember" id="ixv-59471">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013206_ClassMember" id="ixv-59478">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-59534">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013204_ClassMember" id="ixv-59538">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013204_ClassMember" id="ixv-59549">Fidelity Advisor Freedom&#xae; 2015 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013204_ClassMember" id="ixv-59552">Fidelity Advisor Freedom&#xae; 2015 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013204_ClassMember" id="ixv-59556">FFVAX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013204_ClassMember" id="ixv-59575">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2015 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013204_ClassMember" id="ixv-59577">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013204_ClassMember" id="ixv-59582">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013204_ClassMember" id="ixv-59584">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013204_ClassMember" id="ixv-59587">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013204_ClassMember" id="ixv-59590">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013204_ClassMember" id="ixv-59597">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;79&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.75&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013204_ClassMember"
      decimals="0"
      id="ixv-267697"
      unitRef="usd">79</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013204_ClassMember"
      decimals="INF"
      id="ixv-267698"
      unitRef="pure">0.0075</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013204_ClassMember" id="ixv-59639">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013204_ClassMember" id="ixv-59673">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,389


$11,264


$11,632


$11,310


$14,302


$14,290


$13,412


$14,618


$15,359


$16,950



Fidelity Freedom 2015 Composite Index&#x2120;


$10,000

$10,888


$11,772


$12,339


$12,321


$15,060


$15,235


$14,373


$15,688


$16,583


$18,173



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013204_LG_ClassMember_11YR" id="ixv-59694">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267699"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267700"
      unitRef="usd">10389</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267701"
      unitRef="usd">11264</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267702"
      unitRef="usd">11632</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267703"
      unitRef="usd">11310</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267704"
      unitRef="usd">14302</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267705"
      unitRef="usd">14290</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267706"
      unitRef="usd">13412</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267707"
      unitRef="usd">14618</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267708"
      unitRef="usd">15359</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267709"
      unitRef="usd">16950</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013204_LG_1_AdditionalIndexMember_11YR"
      id="ixv-59743">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2015 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267710"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267711"
      unitRef="usd">10888</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267712"
      unitRef="usd">11772</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267713"
      unitRef="usd">12339</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267714"
      unitRef="usd">12321</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267715"
      unitRef="usd">15060</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267716"
      unitRef="usd">15235</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267717"
      unitRef="usd">14373</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267718"
      unitRef="usd">15688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267719"
      unitRef="usd">16583</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267720"
      unitRef="usd">18173</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013204_LG_2_AdditionalIndexMember_11YR"
      id="ixv-59792">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267721"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267722"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267723"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267724"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267725"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267726"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267727"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267728"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267729"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267730"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013204_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267731"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013204_ClassMember" id="ixv-59893">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

4.01%

2.24%


5.42%


Class A (without 5.75% sales charge)

10.36%

3.46%

6.04%


Fidelity Freedom 2015 Composite Index&#x2120;

9.59%


3.83%


6.16%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_ClassMember_1YR"
      decimals="INF"
      id="ixv-267732"
      unitRef="pure">0.0401</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_ClassMember_5YR"
      decimals="INF"
      id="ixv-267733"
      unitRef="pure">0.0224</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_ClassMember_10YR"
      decimals="INF"
      id="ixv-267734"
      unitRef="pure">0.0542</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267735"
      unitRef="pure">0.1036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267736"
      unitRef="pure">0.0346</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267737"
      unitRef="pure">0.0604</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267738"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267739"
      unitRef="pure">0.0383</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267740"
      unitRef="pure">0.0616</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267741"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267742"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013204_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267743"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013204_ClassMember" id="ixv-59978">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013204_ClassMember" id="ixv-59990">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013204_ClassMember" id="ixv-59994">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013204_ClassMember" id="ixv-60000">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;407,173,770&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;1,944,056&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013204_InstantMember"
      decimals="0"
      id="ixv-267744"
      unitRef="usd">407173770</us-gaap:AssetsNet>
    <oef:HoldingsCount
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      decimals="INF"
      id="ixv-267745"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013204_ClassMember"
      decimals="0"
      id="ixv-267746"
      unitRef="usd">1944056</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013204_ClassMember"
      decimals="INF"
      id="ixv-267747"
      unitRef="pure">0.18</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013204_ClassMember" id="ixv-60075">
&#160;
&#160;
&#160;
&#160;
Bond Funds

54.3


Domestic Equity Funds

22.1


International Equity Funds

18.6


Short-Term Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 54.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 22.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 18.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013204_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267748"
      unitRef="pure">0.543</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267749"
      unitRef="pure">0.221</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267750"
      unitRef="pure">0.186</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267751"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267752"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013204_ClassMember" id="ixv-60179">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

30.2


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

11.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.9


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Large Cap Stock Fund

4.3


&#160;


Fidelity Series 5+ Year Inflation-Protected Bond Index Fund

3.9


&#160;


Fidelity Series Government Money Market Fund

3.9


&#160;


Fidelity Series Overseas Fund

3.1


&#160;


Fidelity Series International Value Fund

3.1


&#160;


Fidelity Series International Growth Fund

3.1


&#160;


&#160;

72.9

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013204_TH_0_Member"
      decimals="INF"
      id="ixv-267753"
      unitRef="pure">0.302</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_1_Member"
      decimals="INF"
      id="ixv-267754"
      unitRef="pure">0.117</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_2_Member"
      decimals="INF"
      id="ixv-267755"
      unitRef="pure">0.049</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_3_Member"
      decimals="INF"
      id="ixv-267756"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_4_Member"
      decimals="INF"
      id="ixv-267757"
      unitRef="pure">0.043</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_5_Member"
      decimals="INF"
      id="ixv-267758"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_6_Member"
      decimals="INF"
      id="ixv-267759"
      unitRef="pure">0.039</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_7_Member"
      decimals="INF"
      id="ixv-267760"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_8_Member"
      decimals="INF"
      id="ixv-267761"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013204_TH_9_Member"
      decimals="INF"
      id="ixv-267762"
      unitRef="pure">0.031</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013204_ClassMember" id="ixv-60304">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013204_ClassMember" id="ixv-60310">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013204_ClassMember" id="ixv-60314">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013204_ClassMember" id="ixv-60317">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013204_ClassMember" id="ixv-60321">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013204_ClassMember" id="ixv-60332">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013204_ClassMember" id="ixv-60339">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-60395">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000182213_ClassMember" id="ixv-60399">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000182213_ClassMember" id="ixv-60410">Fidelity Advisor Freedom&#xae; 2010 Fund</oef:FundName>
    <oef:ClassName contextRef="C000182213_ClassMember" id="ixv-60413">Fidelity Advisor Freedom&#xae; 2010 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000182213_ClassMember" id="ixv-60417">FUGLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000182213_ClassMember" id="ixv-60436">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2010 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000182213_ClassMember" id="ixv-60438">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000182213_ClassMember" id="ixv-60443">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000182213_ClassMember" id="ixv-60445">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000182213_ClassMember" id="ixv-60448">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000182213_ClassMember" id="ixv-60451">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000182213_ClassMember" id="ixv-60458">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;25&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000182213_ClassMember"
      decimals="0"
      id="ixv-267763"
      unitRef="usd">25</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000182213_ClassMember"
      decimals="INF"
      id="ixv-267764"
      unitRef="pure">0.0024</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000182213_ClassMember" id="ixv-60500">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000182213_ClassMember" id="ixv-60534">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 6, 2017 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,462


$10,846


$10,737


$13,064


$13,051


$12,399


$13,350


$14,098


$15,405



Fidelity Freedom 2010 Composite Index&#x2120;


$10,000

$10,433


$10,920


$11,074


$12,997


$13,070


$12,436


$13,380


$14,134


$15,276



Bloomberg U.S. Aggregate Bond Index


$10,000

$9,938


$10,384


$11,311


$11,392


$10,919


$10,396


$10,573


$11,089


$11,571



&#160;

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000182213_LG_ClassMember_10YR" id="ixv-60553">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267765"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267766"
      unitRef="usd">10462</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267767"
      unitRef="usd">10846</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267768"
      unitRef="usd">10737</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267769"
      unitRef="usd">13064</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267770"
      unitRef="usd">13051</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267771"
      unitRef="usd">12399</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267772"
      unitRef="usd">13350</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267773"
      unitRef="usd">14098</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267774"
      unitRef="usd">15405</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182213_LG_1_AdditionalIndexMember_10YR"
      id="ixv-60598">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2010 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267775"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267776"
      unitRef="usd">10433</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267777"
      unitRef="usd">10920</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267778"
      unitRef="usd">11074</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267779"
      unitRef="usd">12997</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267780"
      unitRef="usd">13070</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267781"
      unitRef="usd">12436</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267782"
      unitRef="usd">13380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267783"
      unitRef="usd">14134</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267784"
      unitRef="usd">15276</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000182213_LG_2_AdditionalIndexMember_10YR"
      id="ixv-60643">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267785"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267786"
      unitRef="usd">9938</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267787"
      unitRef="usd">10384</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267788"
      unitRef="usd">11311</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267789"
      unitRef="usd">11392</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267790"
      unitRef="usd">10919</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267791"
      unitRef="usd">10396</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267792"
      unitRef="usd">10573</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267793"
      unitRef="usd">11089</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000182213_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267794"
      unitRef="usd">11571</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000182213_ClassMember" id="ixv-60737">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class K6

9.27%

3.35%

5.02%


Fidelity Freedom 2010 Composite Index&#x2120;

8.08%


3.28%


4.92%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.67%




A&#160; &#160;From June 6, 2017

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267795"
      unitRef="pure">0.0927</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267796"
      unitRef="pure">0.0335</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-267797"
      unitRef="pure">0.0502</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267798"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267799"
      unitRef="pure">0.0328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-267800"
      unitRef="pure">0.0492</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267801"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267802"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000182213_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-267803"
      unitRef="pure">0.0167</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000182213_Perf_2017-06-06_ClassMember"
      id="ixv-60806">2017-06-06</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000182213_ClassMember" id="ixv-60816">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000182213_ClassMember" id="ixv-60828">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000182213_ClassMember" id="ixv-60832">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000182213_ClassMember" id="ixv-60838">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;199,614,999&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;875,528&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000182213_InstantMember"
      decimals="0"
      id="ixv-267804"
      unitRef="usd">199614999</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000182213_InstantMember"
      decimals="INF"
      id="ixv-267805"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000182213_ClassMember"
      decimals="0"
      id="ixv-267806"
      unitRef="usd">875528</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000182213_ClassMember"
      decimals="INF"
      id="ixv-267807"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000182213_ClassMember" id="ixv-60913">
&#160;
&#160;
&#160;
&#160;
Bond Funds

59.3


Domestic Equity Funds

18.0


International Equity Funds

15.8


Short-Term Funds

6.5


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 59.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 18.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 15.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 6.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182213_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267808"
      unitRef="pure">0.593</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267809"
      unitRef="pure">0.180</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267810"
      unitRef="pure">0.158</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267811"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267812"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000182213_ClassMember" id="ixv-61017">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

32.1


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

17.7


&#160;


Fidelity Series Government Money Market Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.2


&#160;


Fidelity Series Large Cap Stock Fund

3.4


&#160;


Fidelity Series Overseas Fund

2.6


&#160;


Fidelity Series International Value Fund

2.6


&#160;


Fidelity Series International Growth Fund

2.6


&#160;


Fidelity Advisor Series Equity Growth Fund

2.5


&#160;


&#160;

77.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000182213_TH_0_Member"
      decimals="INF"
      id="ixv-267813"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_1_Member"
      decimals="INF"
      id="ixv-267814"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_2_Member"
      decimals="INF"
      id="ixv-267815"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_3_Member"
      decimals="INF"
      id="ixv-267816"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_4_Member"
      decimals="INF"
      id="ixv-267817"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_5_Member"
      decimals="INF"
      id="ixv-267818"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_6_Member"
      decimals="INF"
      id="ixv-267819"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_7_Member"
      decimals="INF"
      id="ixv-267820"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_8_Member"
      decimals="INF"
      id="ixv-267821"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000182213_TH_9_Member"
      decimals="INF"
      id="ixv-267822"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000182213_ClassMember" id="ixv-61142">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000182213_ClassMember" id="ixv-61148">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000182213_ClassMember" id="ixv-61152">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000182213_ClassMember" id="ixv-61155">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000182213_ClassMember" id="ixv-61159">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000182213_ClassMember" id="ixv-61170">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-61228">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000205057_ClassMember" id="ixv-61232">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000205057_ClassMember" id="ixv-61243">Fidelity Advisor Freedom&#xae; 2010 Fund</oef:FundName>
    <oef:ClassName contextRef="C000205057_ClassMember" id="ixv-61246">Fidelity Advisor Freedom&#xae; 2010 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000205057_ClassMember" id="ixv-61250">FIJJX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000205057_ClassMember" id="ixv-61269">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2010 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000205057_ClassMember" id="ixv-61271">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000205057_ClassMember" id="ixv-61276">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000205057_ClassMember" id="ixv-61278">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000205057_ClassMember" id="ixv-61281">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000205057_ClassMember" id="ixv-61284">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000205057_ClassMember" id="ixv-61291">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;43&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.41&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000205057_ClassMember"
      decimals="0"
      id="ixv-267823"
      unitRef="usd">43</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000205057_ClassMember"
      decimals="INF"
      id="ixv-267824"
      unitRef="pure">0.0041</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000205057_ClassMember" id="ixv-61333">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000205057_ClassMember" id="ixv-61367">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
October 2, 2018 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$10,165


$10,058


$12,241


$12,217


$11,598


$12,471


$13,142


$14,341



Fidelity Freedom 2010 Composite Index&#x2120;


$10,000

$10,183


$10,326


$12,120


$12,188


$11,597


$12,477


$13,180


$14,245



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,460


$11,395


$11,476


$10,999


$10,473


$10,651


$11,171


$11,657



&#160;

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000205057_LG_ClassMember_9YR" id="ixv-61386">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267825"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267826"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267827"
      unitRef="usd">10058</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267828"
      unitRef="usd">12241</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267829"
      unitRef="usd">12217</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267830"
      unitRef="usd">11598</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267831"
      unitRef="usd">12471</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267832"
      unitRef="usd">13142</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267833"
      unitRef="usd">14341</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205057_LG_1_AdditionalIndexMember_9YR"
      id="ixv-61427">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2010 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267834"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267835"
      unitRef="usd">10183</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267836"
      unitRef="usd">10326</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267837"
      unitRef="usd">12120</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267838"
      unitRef="usd">12188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267839"
      unitRef="usd">11597</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267840"
      unitRef="usd">12477</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267841"
      unitRef="usd">13180</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267842"
      unitRef="usd">14245</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000205057_LG_2_AdditionalIndexMember_9YR"
      id="ixv-61468">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267843"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267844"
      unitRef="usd">10460</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267845"
      unitRef="usd">11395</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267846"
      unitRef="usd">11476</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267847"
      unitRef="usd">10999</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267848"
      unitRef="usd">10473</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267849"
      unitRef="usd">10651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267850"
      unitRef="usd">11171</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000205057_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267851"
      unitRef="usd">11657</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000205057_ClassMember" id="ixv-61555">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

Life of Fund&#160;A


Class Z

9.13%

3.22%

4.93%


Fidelity Freedom 2010 Composite Index&#x2120;

8.08%


3.28%


4.83%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


2.07%




A&#160; &#160;From October 2, 2018

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267852"
      unitRef="pure">0.0913</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267853"
      unitRef="pure">0.0322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-267854"
      unitRef="pure">0.0493</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267855"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267856"
      unitRef="pure">0.0328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-267857"
      unitRef="pure">0.0483</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267858"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267859"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000205057_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-267860"
      unitRef="pure">0.0207</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000205057_Perf_2018-10-02_ClassMember"
      id="ixv-61624">2018-10-02</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000205057_ClassMember" id="ixv-61634">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000205057_ClassMember" id="ixv-61646">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000205057_ClassMember" id="ixv-61650">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000205057_ClassMember" id="ixv-61656">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;199,614,999&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;875,528&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000205057_InstantMember"
      decimals="0"
      id="ixv-267861"
      unitRef="usd">199614999</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000205057_InstantMember"
      decimals="INF"
      id="ixv-267862"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000205057_ClassMember"
      decimals="0"
      id="ixv-267863"
      unitRef="usd">875528</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000205057_ClassMember"
      decimals="INF"
      id="ixv-267864"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000205057_ClassMember" id="ixv-61731">
&#160;
&#160;
&#160;
&#160;
Bond Funds

59.3


Domestic Equity Funds

18.0


International Equity Funds

15.8


Short-Term Funds

6.5


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 59.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 18.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 15.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 6.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205057_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267865"
      unitRef="pure">0.593</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267866"
      unitRef="pure">0.180</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267867"
      unitRef="pure">0.158</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267868"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267869"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000205057_ClassMember" id="ixv-61835">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

32.1


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

17.7


&#160;


Fidelity Series Government Money Market Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.2


&#160;


Fidelity Series Large Cap Stock Fund

3.4


&#160;


Fidelity Series Overseas Fund

2.6


&#160;


Fidelity Series International Value Fund

2.6


&#160;


Fidelity Series International Growth Fund

2.6


&#160;


Fidelity Advisor Series Equity Growth Fund

2.5


&#160;


&#160;

77.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000205057_TH_0_Member"
      decimals="INF"
      id="ixv-267870"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_1_Member"
      decimals="INF"
      id="ixv-267871"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_2_Member"
      decimals="INF"
      id="ixv-267872"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_3_Member"
      decimals="INF"
      id="ixv-267873"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_4_Member"
      decimals="INF"
      id="ixv-267874"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_5_Member"
      decimals="INF"
      id="ixv-267875"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_6_Member"
      decimals="INF"
      id="ixv-267876"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_7_Member"
      decimals="INF"
      id="ixv-267877"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_8_Member"
      decimals="INF"
      id="ixv-267878"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000205057_TH_9_Member"
      decimals="INF"
      id="ixv-267879"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000205057_ClassMember" id="ixv-61960">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000205057_ClassMember" id="ixv-61966">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000205057_ClassMember" id="ixv-61970">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000205057_ClassMember" id="ixv-61973">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000205057_ClassMember" id="ixv-61977">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000205057_ClassMember" id="ixv-61988">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-62046">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013202_ClassMember" id="ixv-62050">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013202_ClassMember" id="ixv-62061">Fidelity Advisor Freedom&#xae; 2010 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013202_ClassMember" id="ixv-62064">Fidelity Advisor Freedom&#xae; 2010 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013202_ClassMember" id="ixv-62068">FCFTX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013202_ClassMember" id="ixv-62087">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2010 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013202_ClassMember" id="ixv-62089">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013202_ClassMember" id="ixv-62094">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013202_ClassMember" id="ixv-62096">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013202_ClassMember" id="ixv-62099">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013202_ClassMember" id="ixv-62102">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013202_ClassMember" id="ixv-62109">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;100&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.96&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013202_ClassMember"
      decimals="0"
      id="ixv-267880"
      unitRef="usd">100</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013202_ClassMember"
      decimals="INF"
      id="ixv-267881"
      unitRef="pure">0.0096</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013202_ClassMember" id="ixv-62151">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013202_ClassMember" id="ixv-62185">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$10,483


$11,205


$11,547


$11,359


$13,733


$13,646


$12,883


$13,759


$14,434


$15,660



Fidelity Freedom 2010 Composite Index&#x2120;


$10,000

$10,743


$11,484


$12,019


$12,188


$14,305


$14,386


$13,688


$14,727


$15,557


$16,814



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013202_LG_ClassMember_11YR" id="ixv-62206">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267882"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267883"
      unitRef="usd">10483</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267884"
      unitRef="usd">11205</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267885"
      unitRef="usd">11547</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267886"
      unitRef="usd">11359</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267887"
      unitRef="usd">13733</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267888"
      unitRef="usd">13646</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267889"
      unitRef="usd">12883</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267890"
      unitRef="usd">13759</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267891"
      unitRef="usd">14434</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267892"
      unitRef="usd">15660</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013202_LG_1_AdditionalIndexMember_11YR"
      id="ixv-62255">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2010 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267893"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267894"
      unitRef="usd">10743</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267895"
      unitRef="usd">11484</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267896"
      unitRef="usd">12019</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267897"
      unitRef="usd">12188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267898"
      unitRef="usd">14305</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267899"
      unitRef="usd">14386</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267900"
      unitRef="usd">13688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267901"
      unitRef="usd">14727</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267902"
      unitRef="usd">15557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267903"
      unitRef="usd">16814</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013202_LG_2_AdditionalIndexMember_11YR"
      id="ixv-62304">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267904"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267905"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267906"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267907"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267908"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267909"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267910"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267911"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267912"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267913"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013202_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267914"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013202_ClassMember" id="ixv-62405">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class M (incl. 3.50% sales charge) &#160;

4.70%

1.93%


4.59%


Class M (without 3.50% sales charge)

8.50%

2.66%

4.96%


Fidelity Freedom 2010 Composite Index&#x2120;

8.08%


3.28%


5.33%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_ClassMember_1YR"
      decimals="INF"
      id="ixv-267915"
      unitRef="pure">0.0470</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_ClassMember_5YR"
      decimals="INF"
      id="ixv-267916"
      unitRef="pure">0.0193</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_ClassMember_10YR"
      decimals="INF"
      id="ixv-267917"
      unitRef="pure">0.0459</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267918"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267919"
      unitRef="pure">0.0266</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267920"
      unitRef="pure">0.0496</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267921"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267922"
      unitRef="pure">0.0328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267923"
      unitRef="pure">0.0533</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267924"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267925"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013202_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267926"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013202_ClassMember" id="ixv-62490">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013202_ClassMember" id="ixv-62502">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013202_ClassMember" id="ixv-62506">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013202_ClassMember" id="ixv-62512">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;199,614,999&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;875,528&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013202_InstantMember"
      decimals="0"
      id="ixv-267927"
      unitRef="usd">199614999</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013202_InstantMember"
      decimals="INF"
      id="ixv-267928"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013202_ClassMember"
      decimals="0"
      id="ixv-267929"
      unitRef="usd">875528</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013202_ClassMember"
      decimals="INF"
      id="ixv-267930"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013202_ClassMember" id="ixv-62587">
&#160;
&#160;
&#160;
&#160;
Bond Funds

59.3


Domestic Equity Funds

18.0


International Equity Funds

15.8


Short-Term Funds

6.5


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 59.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 18.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 15.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 6.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013202_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267931"
      unitRef="pure">0.593</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267932"
      unitRef="pure">0.180</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267933"
      unitRef="pure">0.158</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267934"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267935"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013202_ClassMember" id="ixv-62691">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

32.1


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

17.7


&#160;


Fidelity Series Government Money Market Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.2


&#160;


Fidelity Series Large Cap Stock Fund

3.4


&#160;


Fidelity Series Overseas Fund

2.6


&#160;


Fidelity Series International Value Fund

2.6


&#160;


Fidelity Series International Growth Fund

2.6


&#160;


Fidelity Advisor Series Equity Growth Fund

2.5


&#160;


&#160;

77.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013202_TH_0_Member"
      decimals="INF"
      id="ixv-267936"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_1_Member"
      decimals="INF"
      id="ixv-267937"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_2_Member"
      decimals="INF"
      id="ixv-267938"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_3_Member"
      decimals="INF"
      id="ixv-267939"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_4_Member"
      decimals="INF"
      id="ixv-267940"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_5_Member"
      decimals="INF"
      id="ixv-267941"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_6_Member"
      decimals="INF"
      id="ixv-267942"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_7_Member"
      decimals="INF"
      id="ixv-267943"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_8_Member"
      decimals="INF"
      id="ixv-267944"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013202_TH_9_Member"
      decimals="INF"
      id="ixv-267945"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013202_ClassMember" id="ixv-62816">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013202_ClassMember" id="ixv-62822">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013202_ClassMember" id="ixv-62826">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013202_ClassMember" id="ixv-62829">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013202_ClassMember" id="ixv-62833">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013202_ClassMember" id="ixv-62844">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013202_ClassMember" id="ixv-62851">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-62907">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013203_ClassMember" id="ixv-62911">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013203_ClassMember" id="ixv-62922">Fidelity Advisor Freedom&#xae; 2010 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013203_ClassMember" id="ixv-62925">Fidelity Advisor Freedom&#xae; 2010 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013203_ClassMember" id="ixv-62929">FCIFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013203_ClassMember" id="ixv-62948">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2010 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013203_ClassMember" id="ixv-62950">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013203_ClassMember" id="ixv-62955">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013203_ClassMember" id="ixv-62957">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013203_ClassMember" id="ixv-62960">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013203_ClassMember" id="ixv-62963">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013203_ClassMember" id="ixv-62970">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;48&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.46&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013203_ClassMember"
      decimals="0"
      id="ixv-267946"
      unitRef="usd">48</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013203_ClassMember"
      decimals="INF"
      id="ixv-267947"
      unitRef="pure">0.0046</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013203_ClassMember" id="ixv-63012">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013203_ClassMember" id="ixv-63046">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$10,922


$11,729


$12,140


$12,013


$14,596


$14,565


$13,818


$14,850


$15,642


$17,068



Fidelity Freedom 2010 Composite Index&#x2120;


$10,000

$10,743


$11,484


$12,019


$12,188


$14,305


$14,386


$13,688


$14,727


$15,557


$16,814



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013203_LG_ClassMember_11YR" id="ixv-63065">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-267948"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-267949"
      unitRef="usd">10922</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-267950"
      unitRef="usd">11729</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-267951"
      unitRef="usd">12140</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-267952"
      unitRef="usd">12013</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-267953"
      unitRef="usd">14596</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-267954"
      unitRef="usd">14565</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-267955"
      unitRef="usd">13818</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-267956"
      unitRef="usd">14850</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-267957"
      unitRef="usd">15642</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-267958"
      unitRef="usd">17068</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013203_LG_1_AdditionalIndexMember_11YR"
      id="ixv-63114">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2010 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267959"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267960"
      unitRef="usd">10743</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267961"
      unitRef="usd">11484</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267962"
      unitRef="usd">12019</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267963"
      unitRef="usd">12188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267964"
      unitRef="usd">14305</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267965"
      unitRef="usd">14386</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267966"
      unitRef="usd">13688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267967"
      unitRef="usd">14727</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267968"
      unitRef="usd">15557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267969"
      unitRef="usd">16814</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013203_LG_2_AdditionalIndexMember_11YR"
      id="ixv-63163">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-267970"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-267971"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-267972"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-267973"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-267974"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-267975"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-267976"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-267977"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-267978"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-267979"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013203_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-267980"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013203_ClassMember" id="ixv-63264">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class I

9.11%

3.18%

5.49%


Fidelity Freedom 2010 Composite Index&#x2120;

8.08%


3.28%


5.33%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-267981"
      unitRef="pure">0.0911</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-267982"
      unitRef="pure">0.0318</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-267983"
      unitRef="pure">0.0549</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-267984"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-267985"
      unitRef="pure">0.0328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-267986"
      unitRef="pure">0.0533</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-267987"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-267988"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013203_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-267989"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013203_ClassMember" id="ixv-63334">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013203_ClassMember" id="ixv-63346">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013203_ClassMember" id="ixv-63350">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013203_ClassMember" id="ixv-63356">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;199,614,999&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;875,528&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013203_InstantMember"
      decimals="0"
      id="ixv-267990"
      unitRef="usd">199614999</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013203_InstantMember"
      decimals="INF"
      id="ixv-267991"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013203_ClassMember"
      decimals="0"
      id="ixv-267992"
      unitRef="usd">875528</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013203_ClassMember"
      decimals="INF"
      id="ixv-267993"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013203_ClassMember" id="ixv-63431">
&#160;
&#160;
&#160;
&#160;
Bond Funds

59.3


Domestic Equity Funds

18.0


International Equity Funds

15.8


Short-Term Funds

6.5


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 59.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 18.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 15.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 6.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013203_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-267994"
      unitRef="pure">0.593</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-267995"
      unitRef="pure">0.180</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-267996"
      unitRef="pure">0.158</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-267997"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-267998"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013203_ClassMember" id="ixv-63535">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

32.1


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

17.7


&#160;


Fidelity Series Government Money Market Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.2


&#160;


Fidelity Series Large Cap Stock Fund

3.4


&#160;


Fidelity Series Overseas Fund

2.6


&#160;


Fidelity Series International Value Fund

2.6


&#160;


Fidelity Series International Growth Fund

2.6


&#160;


Fidelity Advisor Series Equity Growth Fund

2.5


&#160;


&#160;

77.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013203_TH_0_Member"
      decimals="INF"
      id="ixv-267999"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_1_Member"
      decimals="INF"
      id="ixv-268000"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_2_Member"
      decimals="INF"
      id="ixv-268001"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_3_Member"
      decimals="INF"
      id="ixv-268002"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_4_Member"
      decimals="INF"
      id="ixv-268003"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_5_Member"
      decimals="INF"
      id="ixv-268004"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_6_Member"
      decimals="INF"
      id="ixv-268005"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_7_Member"
      decimals="INF"
      id="ixv-268006"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_8_Member"
      decimals="INF"
      id="ixv-268007"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013203_TH_9_Member"
      decimals="INF"
      id="ixv-268008"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013203_ClassMember" id="ixv-63660">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013203_ClassMember" id="ixv-63666">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013203_ClassMember" id="ixv-63670">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013203_ClassMember" id="ixv-63673">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013203_ClassMember" id="ixv-63677">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013203_ClassMember" id="ixv-63688">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013203_ClassMember" id="ixv-63695">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-63751">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013201_ClassMember" id="ixv-63755">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013201_ClassMember" id="ixv-63766">Fidelity Advisor Freedom&#xae; 2010 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013201_ClassMember" id="ixv-63769">Fidelity Advisor Freedom&#xae; 2010 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013201_ClassMember" id="ixv-63773">FCFCX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013201_ClassMember" id="ixv-63792">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2010 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013201_ClassMember" id="ixv-63794">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013201_ClassMember" id="ixv-63799">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013201_ClassMember" id="ixv-63801">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013201_ClassMember" id="ixv-63804">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013201_ClassMember" id="ixv-63807">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013201_ClassMember" id="ixv-63814">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;152&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.46&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013201_ClassMember"
      decimals="0"
      id="ixv-268009"
      unitRef="usd">152</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013201_ClassMember"
      decimals="INF"
      id="ixv-268010"
      unitRef="pure">0.0146</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013201_ClassMember" id="ixv-63856">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013201_ClassMember" id="ixv-63890">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$10,807


$11,496


$11,778


$11,539


$13,889


$13,724


$12,889


$13,699


$14,398


$15,669



Fidelity Freedom 2010 Composite Index&#x2120;


$10,000

$10,743


$11,484


$12,019


$12,188


$14,305


$14,386


$13,688


$14,727


$15,557


$16,814



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013201_LG_ClassMember_11YR" id="ixv-63909">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-268011"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-268012"
      unitRef="usd">10807</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-268013"
      unitRef="usd">11496</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-268014"
      unitRef="usd">11778</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-268015"
      unitRef="usd">11539</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-268016"
      unitRef="usd">13889</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-268017"
      unitRef="usd">13724</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-268018"
      unitRef="usd">12889</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268019"
      unitRef="usd">13699</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268020"
      unitRef="usd">14398</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268021"
      unitRef="usd">15669</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013201_LG_1_AdditionalIndexMember_11YR"
      id="ixv-63958">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2010 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-268022"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-268023"
      unitRef="usd">10743</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-268024"
      unitRef="usd">11484</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-268025"
      unitRef="usd">12019</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-268026"
      unitRef="usd">12188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-268027"
      unitRef="usd">14305</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-268028"
      unitRef="usd">14386</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-268029"
      unitRef="usd">13688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268030"
      unitRef="usd">14727</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268031"
      unitRef="usd">15557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268032"
      unitRef="usd">16814</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013201_LG_2_AdditionalIndexMember_11YR"
      id="ixv-64007">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-268033"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-268034"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-268035"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-268036"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-268037"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-268038"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-268039"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-268040"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268041"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268042"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013201_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268043"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013201_ClassMember" id="ixv-64108">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class C &#160;(incl. contingent deferred sales charge)

6.94%

2.13%


4.59%


Class C

7.94%

2.13%

4.59%


Fidelity Freedom 2010 Composite Index&#x2120;

8.08%


3.28%


5.33%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_ClassMember_1YR"
      decimals="INF"
      id="ixv-268044"
      unitRef="pure">0.0694</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_ClassMember_5YR"
      decimals="INF"
      id="ixv-268045"
      unitRef="pure">0.0213</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_ClassMember_10YR"
      decimals="INF"
      id="ixv-268046"
      unitRef="pure">0.0459</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268047"
      unitRef="pure">0.0794</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-268048"
      unitRef="pure">0.0213</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-268049"
      unitRef="pure">0.0459</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268050"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-268051"
      unitRef="pure">0.0328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-268052"
      unitRef="pure">0.0533</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268053"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-268054"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013201_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-268055"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013201_ClassMember" id="ixv-64194">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013201_ClassMember" id="ixv-64206">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013201_ClassMember" id="ixv-64210">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013201_ClassMember" id="ixv-64216">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;199,614,999&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;875,528&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013201_InstantMember"
      decimals="0"
      id="ixv-268056"
      unitRef="usd">199614999</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013201_InstantMember"
      decimals="INF"
      id="ixv-268057"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013201_ClassMember"
      decimals="0"
      id="ixv-268058"
      unitRef="usd">875528</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013201_ClassMember"
      decimals="INF"
      id="ixv-268059"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013201_ClassMember" id="ixv-64291">
&#160;
&#160;
&#160;
&#160;
Bond Funds

59.3


Domestic Equity Funds

18.0


International Equity Funds

15.8


Short-Term Funds

6.5


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 59.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 18.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 15.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 6.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013201_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268060"
      unitRef="pure">0.593</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268061"
      unitRef="pure">0.180</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268062"
      unitRef="pure">0.158</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-268063"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268064"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013201_ClassMember" id="ixv-64395">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

32.1


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

17.7


&#160;


Fidelity Series Government Money Market Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.2


&#160;


Fidelity Series Large Cap Stock Fund

3.4


&#160;


Fidelity Series Overseas Fund

2.6


&#160;


Fidelity Series International Value Fund

2.6


&#160;


Fidelity Series International Growth Fund

2.6


&#160;


Fidelity Advisor Series Equity Growth Fund

2.5


&#160;


&#160;

77.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013201_TH_0_Member"
      decimals="INF"
      id="ixv-268065"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_1_Member"
      decimals="INF"
      id="ixv-268066"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_2_Member"
      decimals="INF"
      id="ixv-268067"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_3_Member"
      decimals="INF"
      id="ixv-268068"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_4_Member"
      decimals="INF"
      id="ixv-268069"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_5_Member"
      decimals="INF"
      id="ixv-268070"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_6_Member"
      decimals="INF"
      id="ixv-268071"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_7_Member"
      decimals="INF"
      id="ixv-268072"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_8_Member"
      decimals="INF"
      id="ixv-268073"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013201_TH_9_Member"
      decimals="INF"
      id="ixv-268074"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013201_ClassMember" id="ixv-64520">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013201_ClassMember" id="ixv-64526">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013201_ClassMember" id="ixv-64530">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013201_ClassMember" id="ixv-64533">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013201_ClassMember" id="ixv-64537">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013201_ClassMember" id="ixv-64548">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013201_ClassMember" id="ixv-64555">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-64611">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000013199_ClassMember" id="ixv-64615">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000013199_ClassMember" id="ixv-64626">Fidelity Advisor Freedom&#xae; 2010 Fund</oef:FundName>
    <oef:ClassName contextRef="C000013199_ClassMember" id="ixv-64629">Fidelity Advisor Freedom&#xae; 2010 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000013199_ClassMember" id="ixv-64633">FACFX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000013199_ClassMember" id="ixv-64652">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2010 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000013199_ClassMember" id="ixv-64654">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000013199_ClassMember" id="ixv-64659">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000013199_ClassMember" id="ixv-64661">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000013199_ClassMember" id="ixv-64664">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000013199_ClassMember" id="ixv-64667">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000013199_ClassMember" id="ixv-64674">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;74&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000013199_ClassMember"
      decimals="0"
      id="ixv-268075"
      unitRef="usd">74</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000013199_ClassMember"
      decimals="INF"
      id="ixv-268076"
      unitRef="pure">0.0071</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000013199_ClassMember" id="ixv-64716">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000013199_ClassMember" id="ixv-64750">How did the Fund perform over the past 10 years?

 &#160;&#160;
CUMULATIVE PERFORMANCE
March 31, 2016 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$10,261


$10,997


$11,358


$11,200


$13,583


$13,527


$12,795


$13,709


$14,408


$15,680



Fidelity Freedom 2010 Composite Index&#x2120;


$10,000

$10,743


$11,484


$12,019


$12,188


$14,305


$14,386


$13,688


$14,727


$15,557


$16,814



Bloomberg U.S. Aggregate Bond Index


$10,000

$10,044


$10,165


$10,620


$11,569


$11,651


$11,168


$10,633


$10,814


$11,342


$11,835



&#160;

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000013199_LG_ClassMember_11YR" id="ixv-64771">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2016"
      decimals="0"
      id="ixv-268077"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2017"
      decimals="0"
      id="ixv-268078"
      unitRef="usd">10261</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2018"
      decimals="0"
      id="ixv-268079"
      unitRef="usd">10997</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2019"
      decimals="0"
      id="ixv-268080"
      unitRef="usd">11358</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2020"
      decimals="0"
      id="ixv-268081"
      unitRef="usd">11200</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2021"
      decimals="0"
      id="ixv-268082"
      unitRef="usd">13583</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2022"
      decimals="0"
      id="ixv-268083"
      unitRef="usd">13527</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2023"
      decimals="0"
      id="ixv-268084"
      unitRef="usd">12795</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268085"
      unitRef="usd">13709</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268086"
      unitRef="usd">14408</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268087"
      unitRef="usd">15680</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013199_LG_1_AdditionalIndexMember_11YR"
      id="ixv-64820">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2010 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-268088"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-268089"
      unitRef="usd">10743</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-268090"
      unitRef="usd">11484</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-268091"
      unitRef="usd">12019</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-268092"
      unitRef="usd">12188</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-268093"
      unitRef="usd">14305</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-268094"
      unitRef="usd">14386</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-268095"
      unitRef="usd">13688</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268096"
      unitRef="usd">14727</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268097"
      unitRef="usd">15557</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268098"
      unitRef="usd">16814</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000013199_LG_2_AdditionalIndexMember_11YR"
      id="ixv-64869">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Bloomberg U.S. Aggregate Bond Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2016"
      decimals="0"
      id="ixv-268099"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2017"
      decimals="0"
      id="ixv-268100"
      unitRef="usd">10044</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2018"
      decimals="0"
      id="ixv-268101"
      unitRef="usd">10165</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2019"
      decimals="0"
      id="ixv-268102"
      unitRef="usd">10620</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2020"
      decimals="0"
      id="ixv-268103"
      unitRef="usd">11569</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2021"
      decimals="0"
      id="ixv-268104"
      unitRef="usd">11651</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2022"
      decimals="0"
      id="ixv-268105"
      unitRef="usd">11168</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2023"
      decimals="0"
      id="ixv-268106"
      unitRef="usd">10633</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268107"
      unitRef="usd">10814</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268108"
      unitRef="usd">11342</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000013199_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268109"
      unitRef="usd">11835</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000013199_ClassMember" id="ixv-64970">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

5 Year

10 Year


Class A (incl. 5.75% sales charge) &#160;

2.57%

1.70%


4.60%


Class A (without 5.75% sales charge)

8.82%

2.91%

5.22%


Fidelity Freedom 2010 Composite Index&#x2120;

8.08%


3.28%


5.33%


Bloomberg U.S. Aggregate Bond Index

4.35%


0.31%


1.70%




&#160;
&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_ClassMember_1YR"
      decimals="INF"
      id="ixv-268110"
      unitRef="pure">0.0257</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_ClassMember_5YR"
      decimals="INF"
      id="ixv-268111"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_ClassMember_10YR"
      decimals="INF"
      id="ixv-268112"
      unitRef="pure">0.0460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268113"
      unitRef="pure">0.0882</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_NoLoadClassMember_5YR"
      decimals="INF"
      id="ixv-268114"
      unitRef="pure">0.0291</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_NoLoadClassMember_10YR"
      decimals="INF"
      id="ixv-268115"
      unitRef="pure">0.0522</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268116"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_0_AdditionalIndexMember_5YR"
      decimals="INF"
      id="ixv-268117"
      unitRef="pure">0.0328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_0_AdditionalIndexMember_10YR"
      decimals="INF"
      id="ixv-268118"
      unitRef="pure">0.0533</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268119"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_1_BBIndexMember_5YR"
      decimals="INF"
      id="ixv-268120"
      unitRef="pure">0.0031</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000013199_1_BBIndexMember_10YR"
      decimals="INF"
      id="ixv-268121"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000013199_ClassMember" id="ixv-65055">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000013199_ClassMember" id="ixv-65067">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000013199_ClassMember" id="ixv-65071">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000013199_ClassMember" id="ixv-65077">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;199,614,999&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;45&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;875,528&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;20&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000013199_InstantMember"
      decimals="0"
      id="ixv-268122"
      unitRef="usd">199614999</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000013199_InstantMember"
      decimals="INF"
      id="ixv-268123"
      unitRef="holding">45</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000013199_ClassMember"
      decimals="0"
      id="ixv-268124"
      unitRef="usd">875528</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000013199_ClassMember"
      decimals="INF"
      id="ixv-268125"
      unitRef="pure">0.20</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000013199_ClassMember" id="ixv-65152">
&#160;
&#160;
&#160;
&#160;
Bond Funds

59.3


Domestic Equity Funds

18.0


International Equity Funds

15.8


Short-Term Funds

6.5


Short-Term Investments and Net Other Assets (Liabilities)

0.4




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Bond Funds - 59.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Domestic Equity Funds - 18.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 15.8&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Funds - 6.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.4


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013199_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268126"
      unitRef="pure">0.593</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268127"
      unitRef="pure">0.180</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268128"
      unitRef="pure">0.158</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_AA_ShortTermFunds_Member"
      decimals="INF"
      id="ixv-268129"
      unitRef="pure">0.065</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268130"
      unitRef="pure">0.004</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000013199_ClassMember" id="ixv-65256">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Investment Grade Bond Fund

32.1


&#160;


Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund

17.7


&#160;


Fidelity Series Government Money Market Fund

5.2


&#160;


Fidelity Series International Developed Markets Bond Index Fund

4.7


&#160;


Fidelity Series Emerging Markets Opportunities Fund

4.2


&#160;


Fidelity Series Large Cap Stock Fund

3.4


&#160;


Fidelity Series Overseas Fund

2.6


&#160;


Fidelity Series International Value Fund

2.6


&#160;


Fidelity Series International Growth Fund

2.6


&#160;


Fidelity Advisor Series Equity Growth Fund

2.5


&#160;


&#160;

77.6

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000013199_TH_0_Member"
      decimals="INF"
      id="ixv-268131"
      unitRef="pure">0.321</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_1_Member"
      decimals="INF"
      id="ixv-268132"
      unitRef="pure">0.177</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_2_Member"
      decimals="INF"
      id="ixv-268133"
      unitRef="pure">0.052</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_3_Member"
      decimals="INF"
      id="ixv-268134"
      unitRef="pure">0.047</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_4_Member"
      decimals="INF"
      id="ixv-268135"
      unitRef="pure">0.042</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_5_Member"
      decimals="INF"
      id="ixv-268136"
      unitRef="pure">0.034</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_6_Member"
      decimals="INF"
      id="ixv-268137"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_7_Member"
      decimals="INF"
      id="ixv-268138"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_8_Member"
      decimals="INF"
      id="ixv-268139"
      unitRef="pure">0.026</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000013199_TH_9_Member"
      decimals="INF"
      id="ixv-268140"
      unitRef="pure">0.025</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000013199_ClassMember" id="ixv-65381">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000013199_ClassMember" id="ixv-65387">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000013199_ClassMember" id="ixv-65391">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000013199_ClassMember" id="ixv-65394">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000013199_ClassMember" id="ixv-65398">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000013199_ClassMember" id="ixv-65409">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000013199_ClassMember" id="ixv-65416">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-65472">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000250722_ClassMember" id="ixv-65476">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000250722_ClassMember" id="ixv-65487">Fidelity Advisor Freedom&#xae; 2070 Fund</oef:FundName>
    <oef:ClassName contextRef="C000250722_ClassMember" id="ixv-65490">Fidelity Advisor Freedom&#xae; 2070 Fund Class A</oef:ClassName>
    <dei:TradingSymbol contextRef="C000250722_ClassMember" id="ixv-65494">FRBJX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000250722_ClassMember" id="ixv-65513">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2070 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000250722_ClassMember" id="ixv-65515">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000250722_ClassMember" id="ixv-65520">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000250722_ClassMember" id="ixv-65522">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000250722_ClassMember" id="ixv-65525">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000250722_ClassMember" id="ixv-65528">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000250722_ClassMember" id="ixv-65535">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;103&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.94&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000250722_ClassMember"
      decimals="0"
      id="ixv-268141"
      unitRef="usd">103</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000250722_ClassMember"
      decimals="INF"
      id="ixv-268142"
      unitRef="pure">0.0094</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000250722_ClassMember" id="ixv-65577">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000250722_ClassMember" id="ixv-65611">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2024 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class A


$9,425

$9,770


$11,768



Fidelity Freedom 2070 Composite Index&#x2120;


$10,000

$10,441


$12,428



S&amp;P 500&#xae; Index


$10,000

$10,380


$12,229



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000250722_LG_ClassMember_3YR" id="ixv-65632">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class A&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250722_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268143"
      unitRef="usd">9425</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250722_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268144"
      unitRef="usd">9770</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250722_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268145"
      unitRef="usd">11768</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250722_LG_1_AdditionalIndexMember_3YR"
      id="ixv-65649">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2070 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250722_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268146"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250722_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268147"
      unitRef="usd">10441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250722_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268148"
      unitRef="usd">12428</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250722_LG_2_AdditionalIndexMember_3YR"
      id="ixv-65666">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250722_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268149"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250722_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268150"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250722_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268151"
      unitRef="usd">12229</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000250722_ClassMember" id="ixv-65711">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund&#160;A


Class A (incl. 5.75% sales charge) &#160;

13.52%

9.75%


Class A (without 5.75% sales charge)

20.44%

13.53%


Fidelity Freedom 2070 Composite Index&#x2120;

19.02%


13.22%


S&amp;P 500&#xae; Index

17.80%


12.18%




A&#160; &#160;From June 28, 2024

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_ClassMember_1YR"
      decimals="INF"
      id="ixv-268152"
      unitRef="pure">0.1352</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_ClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268153"
      unitRef="pure">0.0975</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268154"
      unitRef="pure">0.2044</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268155"
      unitRef="pure">0.1353</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268156"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-268157"
      unitRef="pure">0.1322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268158"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250722_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-268159"
      unitRef="pure">0.1218</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000250722_Perf_2024-06-28_ClassMember"
      id="ixv-65777">2024-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000250722_ClassMember" id="ixv-65787">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000250722_ClassMember" id="ixv-65799">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000250722_ClassMember" id="ixv-65803">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000250722_ClassMember" id="ixv-65809">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;18,920,722&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;25&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;60,583&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000250722_InstantMember"
      decimals="0"
      id="ixv-268160"
      unitRef="usd">18920722</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000250722_InstantMember"
      decimals="INF"
      id="ixv-268161"
      unitRef="holding">25</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000250722_ClassMember"
      decimals="0"
      id="ixv-268162"
      unitRef="usd">60583</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000250722_ClassMember"
      decimals="INF"
      id="ixv-268163"
      unitRef="pure">0.24</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000250722_ClassMember" id="ixv-65884">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

53.0


International Equity Funds

42.3


Bond Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 53.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 42.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250722_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268164"
      unitRef="pure">0.530</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268165"
      unitRef="pure">0.423</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268166"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268167"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000250722_ClassMember" id="ixv-65975">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

10.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Series Overseas Fund

8.1


&#160;


Fidelity Series International Value Fund

8.0


&#160;


Fidelity Advisor Series Equity Growth Fund

8.0


&#160;


Fidelity Series International Growth Fund

8.0


&#160;


Fidelity Series Opportunistic Insights Fund

6.8


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.2


&#160;


Fidelity Series Value Discovery Fund

6.2


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.7


&#160;


&#160;

78.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250722_TH_0_Member"
      decimals="INF"
      id="ixv-268168"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_1_Member"
      decimals="INF"
      id="ixv-268169"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_2_Member"
      decimals="INF"
      id="ixv-268170"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_3_Member"
      decimals="INF"
      id="ixv-268171"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_4_Member"
      decimals="INF"
      id="ixv-268172"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_5_Member"
      decimals="INF"
      id="ixv-268173"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_6_Member"
      decimals="INF"
      id="ixv-268174"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_7_Member"
      decimals="INF"
      id="ixv-268175"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_8_Member"
      decimals="INF"
      id="ixv-268176"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250722_TH_9_Member"
      decimals="INF"
      id="ixv-268177"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000250722_ClassMember" id="ixv-66100">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000250722_ClassMember" id="ixv-66106">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000250722_ClassMember" id="ixv-66110">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000250722_ClassMember" id="ixv-66113">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000250722_ClassMember" id="ixv-66117">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000250722_ClassMember" id="ixv-66128">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000250722_ClassMember" id="ixv-66142">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-66198">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000250721_ClassMember" id="ixv-66202">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000250721_ClassMember" id="ixv-66213">Fidelity Advisor Freedom&#xae; 2070 Fund</oef:FundName>
    <oef:ClassName contextRef="C000250721_ClassMember" id="ixv-66216">Fidelity Advisor Freedom&#xae; 2070 Fund Class M</oef:ClassName>
    <dei:TradingSymbol contextRef="C000250721_ClassMember" id="ixv-66220">FRBKX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000250721_ClassMember" id="ixv-66239">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2070 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000250721_ClassMember" id="ixv-66241">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000250721_ClassMember" id="ixv-66246">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000250721_ClassMember" id="ixv-66248">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000250721_ClassMember" id="ixv-66251">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000250721_ClassMember" id="ixv-66254">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000250721_ClassMember" id="ixv-66261">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;130&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.18&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000250721_ClassMember"
      decimals="0"
      id="ixv-268178"
      unitRef="usd">130</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000250721_ClassMember"
      decimals="INF"
      id="ixv-268179"
      unitRef="pure">0.0118</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000250721_ClassMember" id="ixv-66303">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000250721_ClassMember" id="ixv-66337">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2024 through March 31, 2026.
Initial investment of $10,000&#160;and the current sales charge was paid.
Class M


$9,650

$9,980


$11,988



Fidelity Freedom 2070 Composite Index&#x2120;


$10,000

$10,441


$12,428



S&amp;P 500&#xae; Index


$10,000

$10,380


$12,229



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000250721_LG_ClassMember_3YR" id="ixv-66358">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class M&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250721_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268180"
      unitRef="usd">9650</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250721_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268181"
      unitRef="usd">9980</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250721_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268182"
      unitRef="usd">11988</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250721_LG_1_AdditionalIndexMember_3YR"
      id="ixv-66375">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2070 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250721_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268183"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250721_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268184"
      unitRef="usd">10441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250721_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268185"
      unitRef="usd">12428</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250721_LG_2_AdditionalIndexMember_3YR"
      id="ixv-66392">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250721_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268186"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250721_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268187"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250721_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268188"
      unitRef="usd">12229</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000250721_ClassMember" id="ixv-66437">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund&#160;A


Class M (incl. 3.50% sales charge) &#160;

15.91%

10.92%


Class M (without 3.50% sales charge)

20.11%

13.20%


Fidelity Freedom 2070 Composite Index&#x2120;

19.02%


13.22%


S&amp;P 500&#xae; Index

17.80%


12.18%




A&#160; &#160;From June 28, 2024

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_ClassMember_1YR"
      decimals="INF"
      id="ixv-268189"
      unitRef="pure">0.1591</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_ClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268190"
      unitRef="pure">0.1092</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268191"
      unitRef="pure">0.2011</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268192"
      unitRef="pure">0.1320</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268193"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-268194"
      unitRef="pure">0.1322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268195"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250721_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-268196"
      unitRef="pure">0.1218</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000250721_Perf_2024-06-28_ClassMember"
      id="ixv-66503">2024-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000250721_ClassMember" id="ixv-66513">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000250721_ClassMember" id="ixv-66525">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000250721_ClassMember" id="ixv-66529">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000250721_ClassMember" id="ixv-66535">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;18,920,722&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;25&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;60,583&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000250721_InstantMember"
      decimals="0"
      id="ixv-268197"
      unitRef="usd">18920722</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000250721_InstantMember"
      decimals="INF"
      id="ixv-268198"
      unitRef="holding">25</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000250721_ClassMember"
      decimals="0"
      id="ixv-268199"
      unitRef="usd">60583</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000250721_ClassMember"
      decimals="INF"
      id="ixv-268200"
      unitRef="pure">0.24</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000250721_ClassMember" id="ixv-66610">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

53.0


International Equity Funds

42.3


Bond Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 53.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 42.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250721_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268201"
      unitRef="pure">0.530</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268202"
      unitRef="pure">0.423</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268203"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268204"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000250721_ClassMember" id="ixv-66701">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

10.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Series Overseas Fund

8.1


&#160;


Fidelity Series International Value Fund

8.0


&#160;


Fidelity Advisor Series Equity Growth Fund

8.0


&#160;


Fidelity Series International Growth Fund

8.0


&#160;


Fidelity Series Opportunistic Insights Fund

6.8


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.2


&#160;


Fidelity Series Value Discovery Fund

6.2


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.7


&#160;


&#160;

78.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250721_TH_0_Member"
      decimals="INF"
      id="ixv-268205"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_1_Member"
      decimals="INF"
      id="ixv-268206"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_2_Member"
      decimals="INF"
      id="ixv-268207"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_3_Member"
      decimals="INF"
      id="ixv-268208"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_4_Member"
      decimals="INF"
      id="ixv-268209"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_5_Member"
      decimals="INF"
      id="ixv-268210"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_6_Member"
      decimals="INF"
      id="ixv-268211"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_7_Member"
      decimals="INF"
      id="ixv-268212"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_8_Member"
      decimals="INF"
      id="ixv-268213"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250721_TH_9_Member"
      decimals="INF"
      id="ixv-268214"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000250721_ClassMember" id="ixv-66826">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000250721_ClassMember" id="ixv-66832">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000250721_ClassMember" id="ixv-66836">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000250721_ClassMember" id="ixv-66839">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000250721_ClassMember" id="ixv-66843">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000250721_ClassMember" id="ixv-66854">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000250721_ClassMember" id="ixv-66868">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-66924">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000250718_ClassMember" id="ixv-66928">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000250718_ClassMember" id="ixv-66939">Fidelity Advisor Freedom&#xae; 2070 Fund</oef:FundName>
    <oef:ClassName contextRef="C000250718_ClassMember" id="ixv-66942">Fidelity Advisor Freedom&#xae; 2070 Fund Class C</oef:ClassName>
    <dei:TradingSymbol contextRef="C000250718_ClassMember" id="ixv-66946">FRBLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000250718_ClassMember" id="ixv-66965">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2070 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000250718_ClassMember" id="ixv-66967">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000250718_ClassMember" id="ixv-66972">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000250718_ClassMember" id="ixv-66974">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000250718_ClassMember" id="ixv-66977">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000250718_ClassMember" id="ixv-66980">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000250718_ClassMember" id="ixv-66987">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;186&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;1.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000250718_ClassMember"
      decimals="0"
      id="ixv-268215"
      unitRef="usd">186</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000250718_ClassMember"
      decimals="INF"
      id="ixv-268216"
      unitRef="pure">0.0169</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000250718_ClassMember" id="ixv-67029">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000250718_ClassMember" id="ixv-67063">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2024 through March 31, 2026.
Initial investment of $10,000.
Class C


$10,000

$10,303


$12,316



Fidelity Freedom 2070 Composite Index&#x2120;


$10,000

$10,441


$12,428



S&amp;P 500&#xae; Index


$10,000

$10,380


$12,229



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000250718_LG_ClassMember_3YR" id="ixv-67082">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class C&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250718_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268217"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250718_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268218"
      unitRef="usd">10303</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250718_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268219"
      unitRef="usd">12316</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250718_LG_1_AdditionalIndexMember_3YR"
      id="ixv-67099">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2070 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250718_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268220"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250718_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268221"
      unitRef="usd">10441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250718_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268222"
      unitRef="usd">12428</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250718_LG_2_AdditionalIndexMember_3YR"
      id="ixv-67116">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250718_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268223"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250718_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268224"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250718_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268225"
      unitRef="usd">12229</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000250718_ClassMember" id="ixv-67161">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund&#160;A


Class C &#160;(incl. contingent deferred sales charge)

18.54%

12.64%


Class C

19.54%

12.64%


Fidelity Freedom 2070 Composite Index&#x2120;

19.02%


13.22%


S&amp;P 500&#xae; Index

17.80%


12.18%




A&#160; &#160;From June 28, 2024

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_ClassMember_1YR"
      decimals="INF"
      id="ixv-268226"
      unitRef="pure">0.1854</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_ClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268227"
      unitRef="pure">0.1264</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268228"
      unitRef="pure">0.1954</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268229"
      unitRef="pure">0.1264</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268230"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-268231"
      unitRef="pure">0.1322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268232"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250718_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-268233"
      unitRef="pure">0.1218</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000250718_Perf_2024-06-28_ClassMember"
      id="ixv-67228">2024-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000250718_ClassMember" id="ixv-67238">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000250718_ClassMember" id="ixv-67250">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000250718_ClassMember" id="ixv-67254">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000250718_ClassMember" id="ixv-67260">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;18,920,722&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;25&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;60,583&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000250718_InstantMember"
      decimals="0"
      id="ixv-268234"
      unitRef="usd">18920722</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000250718_InstantMember"
      decimals="INF"
      id="ixv-268235"
      unitRef="holding">25</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000250718_ClassMember"
      decimals="0"
      id="ixv-268236"
      unitRef="usd">60583</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000250718_ClassMember"
      decimals="INF"
      id="ixv-268237"
      unitRef="pure">0.24</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000250718_ClassMember" id="ixv-67335">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

53.0


International Equity Funds

42.3


Bond Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 53.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 42.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250718_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268238"
      unitRef="pure">0.530</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268239"
      unitRef="pure">0.423</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268240"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268241"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000250718_ClassMember" id="ixv-67426">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

10.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Series Overseas Fund

8.1


&#160;


Fidelity Series International Value Fund

8.0


&#160;


Fidelity Advisor Series Equity Growth Fund

8.0


&#160;


Fidelity Series International Growth Fund

8.0


&#160;


Fidelity Series Opportunistic Insights Fund

6.8


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.2


&#160;


Fidelity Series Value Discovery Fund

6.2


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.7


&#160;


&#160;

78.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250718_TH_0_Member"
      decimals="INF"
      id="ixv-268242"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_1_Member"
      decimals="INF"
      id="ixv-268243"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_2_Member"
      decimals="INF"
      id="ixv-268244"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_3_Member"
      decimals="INF"
      id="ixv-268245"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_4_Member"
      decimals="INF"
      id="ixv-268246"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_5_Member"
      decimals="INF"
      id="ixv-268247"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_6_Member"
      decimals="INF"
      id="ixv-268248"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_7_Member"
      decimals="INF"
      id="ixv-268249"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_8_Member"
      decimals="INF"
      id="ixv-268250"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250718_TH_9_Member"
      decimals="INF"
      id="ixv-268251"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000250718_ClassMember" id="ixv-67551">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000250718_ClassMember" id="ixv-67557">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000250718_ClassMember" id="ixv-67561">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000250718_ClassMember" id="ixv-67564">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000250718_ClassMember" id="ixv-67568">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000250718_ClassMember" id="ixv-67579">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000250718_ClassMember" id="ixv-67593">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-67649">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000250719_ClassMember" id="ixv-67653">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000250719_ClassMember" id="ixv-67664">Fidelity Advisor Freedom&#xae; 2070 Fund</oef:FundName>
    <oef:ClassName contextRef="C000250719_ClassMember" id="ixv-67667">Fidelity Advisor Freedom&#xae; 2070 Fund Class I</oef:ClassName>
    <dei:TradingSymbol contextRef="C000250719_ClassMember" id="ixv-67671">FRBNX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000250719_ClassMember" id="ixv-67690">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2070 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000250719_ClassMember" id="ixv-67692">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000250719_ClassMember" id="ixv-67697">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000250719_ClassMember" id="ixv-67699">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000250719_ClassMember" id="ixv-67702">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000250719_ClassMember" id="ixv-67705">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000250719_ClassMember" id="ixv-67712">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;76&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.69&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000250719_ClassMember"
      decimals="0"
      id="ixv-268252"
      unitRef="usd">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000250719_ClassMember"
      decimals="INF"
      id="ixv-268253"
      unitRef="pure">0.0069</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000250719_ClassMember" id="ixv-67754">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000250719_ClassMember" id="ixv-67788">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2024 through March 31, 2026.
Initial investment of $10,000.
Class I


$10,000

$10,382


$12,539



Fidelity Freedom 2070 Composite Index&#x2120;


$10,000

$10,441


$12,428



S&amp;P 500&#xae; Index


$10,000

$10,380


$12,229



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000250719_LG_ClassMember_3YR" id="ixv-67807">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class I&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250719_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268254"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250719_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268255"
      unitRef="usd">10382</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250719_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268256"
      unitRef="usd">12539</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250719_LG_1_AdditionalIndexMember_3YR"
      id="ixv-67824">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2070 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250719_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268257"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250719_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268258"
      unitRef="usd">10441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250719_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268259"
      unitRef="usd">12428</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250719_LG_2_AdditionalIndexMember_3YR"
      id="ixv-67841">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250719_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268260"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250719_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268261"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250719_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268262"
      unitRef="usd">12229</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000250719_ClassMember" id="ixv-67886">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund&#160;A


Class I

20.77%

13.80%


Fidelity Freedom 2070 Composite Index&#x2120;

19.02%


13.22%


S&amp;P 500&#xae; Index

17.80%


12.18%




A&#160; &#160;From June 28, 2024

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000250719_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268263"
      unitRef="pure">0.2077</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250719_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268264"
      unitRef="pure">0.1380</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250719_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268265"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250719_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-268266"
      unitRef="pure">0.1322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250719_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268267"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250719_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-268268"
      unitRef="pure">0.1218</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000250719_Perf_2024-06-28_ClassMember"
      id="ixv-67941">2024-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000250719_ClassMember" id="ixv-67951">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000250719_ClassMember" id="ixv-67963">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000250719_ClassMember" id="ixv-67967">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000250719_ClassMember" id="ixv-67973">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;18,920,722&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;25&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;60,583&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000250719_InstantMember"
      decimals="0"
      id="ixv-268269"
      unitRef="usd">18920722</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000250719_InstantMember"
      decimals="INF"
      id="ixv-268270"
      unitRef="holding">25</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000250719_ClassMember"
      decimals="0"
      id="ixv-268271"
      unitRef="usd">60583</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000250719_ClassMember"
      decimals="INF"
      id="ixv-268272"
      unitRef="pure">0.24</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000250719_ClassMember" id="ixv-68048">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

53.0


International Equity Funds

42.3


Bond Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 53.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 42.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250719_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268273"
      unitRef="pure">0.530</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268274"
      unitRef="pure">0.423</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268275"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268276"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000250719_ClassMember" id="ixv-68139">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

10.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Series Overseas Fund

8.1


&#160;


Fidelity Series International Value Fund

8.0


&#160;


Fidelity Advisor Series Equity Growth Fund

8.0


&#160;


Fidelity Series International Growth Fund

8.0


&#160;


Fidelity Series Opportunistic Insights Fund

6.8


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.2


&#160;


Fidelity Series Value Discovery Fund

6.2


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.7


&#160;


&#160;

78.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250719_TH_0_Member"
      decimals="INF"
      id="ixv-268277"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_1_Member"
      decimals="INF"
      id="ixv-268278"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_2_Member"
      decimals="INF"
      id="ixv-268279"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_3_Member"
      decimals="INF"
      id="ixv-268280"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_4_Member"
      decimals="INF"
      id="ixv-268281"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_5_Member"
      decimals="INF"
      id="ixv-268282"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_6_Member"
      decimals="INF"
      id="ixv-268283"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_7_Member"
      decimals="INF"
      id="ixv-268284"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_8_Member"
      decimals="INF"
      id="ixv-268285"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250719_TH_9_Member"
      decimals="INF"
      id="ixv-268286"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000250719_ClassMember" id="ixv-68264">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000250719_ClassMember" id="ixv-68270">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000250719_ClassMember" id="ixv-68274">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000250719_ClassMember" id="ixv-68277">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000250719_ClassMember" id="ixv-68281">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngExpensesTextBlock contextRef="C000250719_ClassMember" id="ixv-68292">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes:&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;ul style="color:#000000;list-style-type:disc;margin:0px 0px 0px 25px;padding:0px;"&gt;&lt;li style="margin:5px 0px 2px 24px;padding:0px 0px 0px 0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Management fee&lt;/span&gt;&lt;/li&gt;&lt;/ul&gt;
&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund's contractual management fee was reduced during the reporting period.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngExpensesTextBlock>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000250719_ClassMember" id="ixv-68306">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;br/&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-68362">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000250723_ClassMember" id="ixv-68366">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000250723_ClassMember" id="ixv-68377">Fidelity Advisor Freedom&#xae; 2070 Fund</oef:FundName>
    <oef:ClassName contextRef="C000250723_ClassMember" id="ixv-68380">Fidelity Advisor Freedom&#xae; 2070 Fund Class Z</oef:ClassName>
    <dei:TradingSymbol contextRef="C000250723_ClassMember" id="ixv-68384">FRBOX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000250723_ClassMember" id="ixv-68403">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2070 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000250723_ClassMember" id="ixv-68405">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000250723_ClassMember" id="ixv-68410">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000250723_ClassMember" id="ixv-68412">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000250723_ClassMember" id="ixv-68415">1-877-208-0098</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000250723_ClassMember" id="ixv-68418">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000250723_ClassMember" id="ixv-68425">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;71&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.65&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000250723_ClassMember"
      decimals="0"
      id="ixv-268287"
      unitRef="usd">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000250723_ClassMember"
      decimals="INF"
      id="ixv-268288"
      unitRef="pure">0.0065</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000250723_ClassMember" id="ixv-68467">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000250723_ClassMember" id="ixv-68501">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2024 through March 31, 2026.
Initial investment of $10,000.
Class Z


$10,000

$10,390


$12,557



Fidelity Freedom 2070 Composite Index&#x2120;


$10,000

$10,441


$12,428



S&amp;P 500&#xae; Index


$10,000

$10,380


$12,229



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000250723_LG_ClassMember_3YR" id="ixv-68520">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class Z&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250723_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268289"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250723_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268290"
      unitRef="usd">10390</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250723_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268291"
      unitRef="usd">12557</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250723_LG_1_AdditionalIndexMember_3YR"
      id="ixv-68537">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2070 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250723_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268292"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250723_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268293"
      unitRef="usd">10441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250723_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268294"
      unitRef="usd">12428</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250723_LG_2_AdditionalIndexMember_3YR"
      id="ixv-68554">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250723_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268295"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250723_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268296"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250723_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268297"
      unitRef="usd">12229</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000250723_ClassMember" id="ixv-68599">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund&#160;A


Class Z

20.86%

13.89%


Fidelity Freedom 2070 Composite Index&#x2120;

19.02%


13.22%


S&amp;P 500&#xae; Index

17.80%


12.18%




A&#160; &#160;From June 28, 2024

&#160;
Visit institutional.fidelity.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000250723_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268298"
      unitRef="pure">0.2086</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250723_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268299"
      unitRef="pure">0.1389</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250723_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268300"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250723_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-268301"
      unitRef="pure">0.1322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250723_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268302"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250723_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-268303"
      unitRef="pure">0.1218</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000250723_Perf_2024-06-28_ClassMember"
      id="ixv-68654">2024-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000250723_ClassMember" id="ixv-68664">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;institutional.fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000250723_ClassMember" id="ixv-68676">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000250723_ClassMember" id="ixv-68680">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000250723_ClassMember" id="ixv-68686">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;18,920,722&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;25&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;60,583&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000250723_InstantMember"
      decimals="0"
      id="ixv-268304"
      unitRef="usd">18920722</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000250723_InstantMember"
      decimals="INF"
      id="ixv-268305"
      unitRef="holding">25</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000250723_ClassMember"
      decimals="0"
      id="ixv-268306"
      unitRef="usd">60583</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000250723_ClassMember"
      decimals="INF"
      id="ixv-268307"
      unitRef="pure">0.24</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000250723_ClassMember" id="ixv-68761">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

53.0


International Equity Funds

42.3


Bond Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 53.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 42.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250723_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268308"
      unitRef="pure">0.530</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268309"
      unitRef="pure">0.423</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268310"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268311"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000250723_ClassMember" id="ixv-68852">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

10.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Series Overseas Fund

8.1


&#160;


Fidelity Series International Value Fund

8.0


&#160;


Fidelity Advisor Series Equity Growth Fund

8.0


&#160;


Fidelity Series International Growth Fund

8.0


&#160;


Fidelity Series Opportunistic Insights Fund

6.8


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.2


&#160;


Fidelity Series Value Discovery Fund

6.2


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.7


&#160;


&#160;

78.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250723_TH_0_Member"
      decimals="INF"
      id="ixv-268312"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_1_Member"
      decimals="INF"
      id="ixv-268313"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_2_Member"
      decimals="INF"
      id="ixv-268314"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_3_Member"
      decimals="INF"
      id="ixv-268315"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_4_Member"
      decimals="INF"
      id="ixv-268316"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_5_Member"
      decimals="INF"
      id="ixv-268317"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_6_Member"
      decimals="INF"
      id="ixv-268318"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_7_Member"
      decimals="INF"
      id="ixv-268319"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_8_Member"
      decimals="INF"
      id="ixv-268320"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250723_TH_9_Member"
      decimals="INF"
      id="ixv-268321"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000250723_ClassMember" id="ixv-68977">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000250723_ClassMember" id="ixv-68983">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000250723_ClassMember" id="ixv-68987">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000250723_ClassMember" id="ixv-68990">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-877-208-0098&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000250723_ClassMember" id="ixv-68994">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000250723_ClassMember" id="ixv-69005">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
    <dei:DocumentPeriodEndDate contextRef="Trust" id="ixv-69063">2026-03-31</dei:DocumentPeriodEndDate>
    <oef:MaterialFundChngNoticeTextBlock contextRef="C000250720_ClassMember" id="ixv-69067">This report describes changes to the Fund that occurred during the reporting period.</oef:MaterialFundChngNoticeTextBlock>
    <oef:FundName contextRef="C000250720_ClassMember" id="ixv-69078">Fidelity Advisor Freedom&#xae; 2070 Fund</oef:FundName>
    <oef:ClassName contextRef="C000250720_ClassMember" id="ixv-69081">Fidelity Advisor Freedom&#xae; 2070 Fund Class K6</oef:ClassName>
    <dei:TradingSymbol contextRef="C000250720_ClassMember" id="ixv-69085">FRBPX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock contextRef="C000250720_ClassMember" id="ixv-69104">This annual shareholder report contains information about Fidelity Advisor Freedom&#xae; 2070 Fund for the period April 1, 2025 to March 31, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual contextRef="C000250720_ClassMember" id="ixv-69106">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock contextRef="C000250720_ClassMember" id="ixv-69111">You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite contextRef="C000250720_ClassMember" id="ixv-69113">fundresearch.fidelity.com/prospectus/sec</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber contextRef="C000250720_ClassMember" id="ixv-69116">1-800-835-5092</oef:AddlInfoPhoneNumber>
    <oef:AddlInfoEmail contextRef="C000250720_ClassMember" id="ixv-69119">fidfunddocuments@fidelity.com</oef:AddlInfoEmail>
    <oef:ExpensesTextBlock contextRef="C000250720_ClassMember" id="ixv-69126">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What were your Fund costs for the last year?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(based on hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;FUND COST (PREVIOUS YEAR)&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs of a $10,000 investment&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;Costs paid as a percentage of a $10,000 investment &lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$ &lt;/span&gt;50&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:center;text-align-last:auto;"&gt;0.45&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:1%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="C000250720_ClassMember"
      decimals="0"
      id="ixv-268322"
      unitRef="usd">50</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="C000250720_ClassMember"
      decimals="INF"
      id="ixv-268323"
      unitRef="pure">0.0045</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock contextRef="C000250720_ClassMember" id="ixv-69168">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;What affected the Fund's performance this period?&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolios notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an out-of-composite allocation to commodities and lighter-than-composite exposure to U.S. investment-grade bonds.&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Within U.S. equities, an investment in Fidelity&#xae; Series Large Cap Fund (+29.19%) meaningfully boosted the Fund's relative result, given it outperformed its benchmark, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; index (+17.80%), for the 12 months. Fidelity Advisor&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Growth Opportunities Fund (+25.77%) also stood out, outperforming its benchmark, the Russell 3000&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Growth Index (+18.75%).&#160;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;Investment performance within emerging-markets equities also added relative value. Specifically, an investment in Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Emerging Markets Opportunities Fund (+39.58%) outpaced the MSCI Emerging Markets Index (+29.53%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;In contrast, the performance of the underlying non-U.S. developed-markets equities funds detracted from the Fund's relative result. Fidelity&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;"&gt;&#xae;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt; Series Overseas Fund (+10.87%) lagged its benchmark, the MSCI EAFE Index (+21.61%).&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#x2022;&lt;span style="padding-right:10px"&gt;&lt;/span&gt;An underweight allocation to U.S. equities also hurt the Fund's relative performance, along with an overweight in long-term U.S. Treasury bonds.&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock contextRef="C000250720_ClassMember" id="ixv-69202">How did the Fund perform over the life of Fund?

 &#160;&#160;
CUMULATIVE PERFORMANCE
June 28, 2024 through March 31, 2026.
Initial investment of $10,000.
Class K6


$10,000

$10,407


$12,599



Fidelity Freedom 2070 Composite Index&#x2120;


$10,000

$10,441


$12,428



S&amp;P 500&#xae; Index


$10,000

$10,380


$12,229



&#160;

2024

2025

2026









&#160;
</oef:LineGraphTableTextBlock>
    <oef:LineGraphAndTableMeasureName contextRef="C000250720_LG_ClassMember_3YR" id="ixv-69221">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Class K6&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250720_ClassMember_AsOf_2024"
      decimals="0"
      id="ixv-268324"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250720_ClassMember_AsOf_2025"
      decimals="0"
      id="ixv-268325"
      unitRef="usd">10407</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250720_ClassMember_AsOf_2026"
      decimals="0"
      id="ixv-268326"
      unitRef="usd">12599</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250720_LG_1_AdditionalIndexMember_3YR"
      id="ixv-69238">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fidelity Freedom 2070 Composite Index&#x2120;&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250720_1_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268327"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250720_1_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268328"
      unitRef="usd">10441</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250720_1_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268329"
      unitRef="usd">12428</oef:AccmVal>
    <oef:LineGraphAndTableMeasureName
      contextRef="C000250720_LG_2_AdditionalIndexMember_3YR"
      id="ixv-69255">&lt;span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;"&gt;S&amp;amp;P 500&#xae; Index&lt;/span&gt;</oef:LineGraphAndTableMeasureName>
    <oef:AccmVal
      contextRef="C000250720_2_AdditionalIndexMember_AsOf_2024"
      decimals="0"
      id="ixv-268330"
      unitRef="usd">10000</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250720_2_AdditionalIndexMember_AsOf_2025"
      decimals="0"
      id="ixv-268331"
      unitRef="usd">10380</oef:AccmVal>
    <oef:AccmVal
      contextRef="C000250720_2_AdditionalIndexMember_AsOf_2026"
      decimals="0"
      id="ixv-268332"
      unitRef="usd">12229</oef:AccmVal>
    <oef:AvgAnnlRtrTableTextBlock contextRef="C000250720_ClassMember" id="ixv-69300">AVERAGE ANNUAL TOTAL RETURNS:

&#160;

1 Year

Life of Fund&#160;A


Class K6

21.07%

14.11%


Fidelity Freedom 2070 Composite Index&#x2120;

19.02%


13.22%


S&amp;P 500&#xae; Index

17.80%


12.18%




A&#160; &#160;From June 28, 2024

&#160;
Visit www.401k.com for more recent performance information.&#160;

&#160;


The Fund's past performance is not a good predictor of the Fund's future performance. &#160;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.





</oef:AvgAnnlRtrTableTextBlock>
    <oef:AvgAnnlRtrPct
      contextRef="C000250720_NoLoadClassMember_1YR"
      decimals="INF"
      id="ixv-268333"
      unitRef="pure">0.2107</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250720_NoLoadClassMember_2025-04-01_2026-03-31"
      decimals="INF"
      id="ixv-268334"
      unitRef="pure">0.1411</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250720_0_AdditionalIndexMember_1YR"
      decimals="INF"
      id="ixv-268335"
      unitRef="pure">0.1902</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250720_0_AdditionalIndexMember_LOC"
      decimals="INF"
      id="ixv-268336"
      unitRef="pure">0.1322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250720_1_BBIndexMember_1YR"
      decimals="INF"
      id="ixv-268337"
      unitRef="pure">0.1780</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000250720_1_BBIndexMember_LOC"
      decimals="INF"
      id="ixv-268338"
      unitRef="pure">0.1218</oef:AvgAnnlRtrPct>
    <oef:PerfInceptionDate
      contextRef="C000250720_Perf_2024-06-28_ClassMember"
      id="ixv-69355">2024-06-28</oef:PerfInceptionDate>
    <oef:UpdPerfInfoLocationTextBlock contextRef="C000250720_ClassMember" id="ixv-69365">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Visit &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;www.401k.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; for more recent performance information.&lt;/span&gt;</oef:UpdPerfInfoLocationTextBlock>
    <oef:PerformancePastDoesNotIndicateFuture contextRef="C000250720_ClassMember" id="ixv-69377">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;"&gt;The Fund's past performance is not a good predictor of the Fund's future performance.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock contextRef="C000250720_ClassMember" id="ixv-69381">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.&lt;/span&gt;</oef:NoDeductionOfTaxesTextBlock>
    <oef:AddlFundStatisticsTextBlock contextRef="C000250720_ClassMember" id="ixv-69387">&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;Key Fund Statistics&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;(as of March 31, 2026)&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style="font-size:11px;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:63%; " valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;"&gt;KEY FACTS&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt; &lt;span&gt;&#160;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:12px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Fund Size&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;18,920,722&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Number of Holdings&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;25&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Total Advisory Fee&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;$&lt;/span&gt;60,583&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="middle"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;&lt;td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;Portfolio Turnover&lt;/span&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"&gt;&lt;div style="text-align:right;text-align-last:auto;"&gt;24&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;%&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:right;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:5%; " valign="top"&gt;&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="C000250720_InstantMember"
      decimals="0"
      id="ixv-268339"
      unitRef="usd">18920722</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="C000250720_InstantMember"
      decimals="INF"
      id="ixv-268340"
      unitRef="holding">25</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="C000250720_ClassMember"
      decimals="0"
      id="ixv-268341"
      unitRef="usd">60583</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="C000250720_ClassMember"
      decimals="INF"
      id="ixv-268342"
      unitRef="pure">0.24</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock contextRef="C000250720_ClassMember" id="ixv-69462">
&#160;
&#160;
&#160;
&#160;
Domestic Equity Funds

53.0


International Equity Funds

42.3


Bond Funds

4.6


Short-Term Investments and Net Other Assets (Liabilities)

0.1




ASSET ALLOCATION (% of Fund's net assets)


&#160;



&#160;

Domestic Equity Funds - 53.0&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

International Equity Funds - 42.3&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Bond Funds - 4.6&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;


&#160;

Short-Term Investments and Net Other Assets (Liabilities) - 0.1


&#160;






</oef:HoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250720_AA_DomesticEquityFunds_Member"
      decimals="INF"
      id="ixv-268343"
      unitRef="pure">0.530</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_AA_InternationalEquityFunds_Member"
      decimals="INF"
      id="ixv-268344"
      unitRef="pure">0.423</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_AA_BondFunds_Member"
      decimals="INF"
      id="ixv-268345"
      unitRef="pure">0.046</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_AA_ShortTermInvestmentsandNetOtherAssetsLiabilities_Member"
      decimals="INF"
      id="ixv-268346"
      unitRef="pure">0.001</oef:PctOfNav>
    <oef:LargestHoldingsTableTextBlock contextRef="C000250720_ClassMember" id="ixv-69553">TOP HOLDINGS(% of Fund's net assets)

&#160;

&#160;


Fidelity Series Large Cap Stock Fund

10.9


&#160;


Fidelity Series Emerging Markets Opportunities Fund

10.6


&#160;


Fidelity Series Overseas Fund

8.1


&#160;


Fidelity Series International Value Fund

8.0


&#160;


Fidelity Advisor Series Equity Growth Fund

8.0


&#160;


Fidelity Series International Growth Fund

8.0


&#160;


Fidelity Series Opportunistic Insights Fund

6.8


&#160;


Fidelity Series Stock Selector Large Cap Value Fund

6.2


&#160;


Fidelity Series Value Discovery Fund

6.2


&#160;


Fidelity Advisor Series Growth Opportunities Fund

5.7


&#160;


&#160;

78.5

&#160;



</oef:LargestHoldingsTableTextBlock>
    <oef:PctOfNav
      contextRef="C000250720_TH_0_Member"
      decimals="INF"
      id="ixv-268347"
      unitRef="pure">0.109</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_1_Member"
      decimals="INF"
      id="ixv-268348"
      unitRef="pure">0.106</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_2_Member"
      decimals="INF"
      id="ixv-268349"
      unitRef="pure">0.081</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_3_Member"
      decimals="INF"
      id="ixv-268350"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_4_Member"
      decimals="INF"
      id="ixv-268351"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_5_Member"
      decimals="INF"
      id="ixv-268352"
      unitRef="pure">0.080</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_6_Member"
      decimals="INF"
      id="ixv-268353"
      unitRef="pure">0.068</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_7_Member"
      decimals="INF"
      id="ixv-268354"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_8_Member"
      decimals="INF"
      id="ixv-268355"
      unitRef="pure">0.062</oef:PctOfNav>
    <oef:PctOfNav
      contextRef="C000250720_TH_9_Member"
      decimals="INF"
      id="ixv-268356"
      unitRef="pure">0.057</oef:PctOfNav>
    <oef:MaterialFundChngTextBlock contextRef="C000250720_ClassMember" id="ixv-69678">
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;"&gt;How has the Fund changed?&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;span style="line-height:11px;"&gt;&#160;&lt;/span&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"&gt;&lt;tr&gt;&lt;td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"&gt;&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngTextBlock>
    <oef:SummaryOfChngLegendTextBlock contextRef="C000250720_ClassMember" id="ixv-69684">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;May 30, 2026 at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or upon request at &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"&gt;&#160;&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt; or by sending an e-mail to &lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;.&lt;/span&gt;</oef:SummaryOfChngLegendTextBlock>
    <oef:UpdProspectusWebAddress contextRef="C000250720_ClassMember" id="ixv-69688">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"&gt;fundresearch.fidelity.com/prospectus/sec&lt;/span&gt;</oef:UpdProspectusWebAddress>
    <oef:UpdProspectusPhoneNumber contextRef="C000250720_ClassMember" id="ixv-69691">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;1-800-835-5092&lt;/span&gt;</oef:UpdProspectusPhoneNumber>
    <oef:UpdProspectusEmailAddress contextRef="C000250720_ClassMember" id="ixv-69695">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;fidfunddocuments@fidelity.com&lt;/span&gt;</oef:UpdProspectusEmailAddress>
    <oef:MaterialFundChngStrategiesTextBlock contextRef="C000250720_ClassMember" id="ixv-69706">&lt;span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"&gt;The fund modified its principal investment strategies during the reporting period.&lt;/span&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;
&lt;div style="text-align:left;text-align-last:auto;"&gt;&lt;/div&gt;</oef:MaterialFundChngStrategiesTextBlock>
</xbrl>
