<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2023"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:rr="http://xbrl.sec.gov/rr/2023"
  xmlns:vspt="http://www.voyainvestments.com/20250530"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="vspt-20250530.xsd" xlink:type="simple"/>
    <context id="DefaultContext">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001392116</identifier>
        </entity>
        <period>
            <startDate>2024-07-31</startDate>
            <endDate>2024-07-31</endDate>
        </period>
    </context>
    <context id="S000017462Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001392116</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">vspt:S000017462Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-07-31</startDate>
            <endDate>2024-07-31</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <dei:AmendmentFlag
      contextRef="DefaultContext"
      id="h3_e4d9f2f2_0c81_4684_bfe2_bc096d9c07c8">false</dei:AmendmentFlag>
    <dei:DocumentEffectiveDate
      contextRef="DefaultContext"
      id="h5_953d6707_9d31_4592_9a9a_dad20c6e0ffa">2025-05-30</dei:DocumentEffectiveDate>
    <dei:DocumentType
      contextRef="DefaultContext"
      id="h7_e9efea33_8b75_447a_b0ed_673a27eb7046">497</dei:DocumentType>
    <dei:EntityCentralIndexKey
      contextRef="DefaultContext"
      id="h1_7b2061f3_7521_425d_9a92_db7debee684a">0001392116</dei:EntityCentralIndexKey>
    <dei:EntityInvCompanyType
      contextRef="DefaultContext"
      id="h_1_280ff1b7-fefe-bf81-9476-182e358840af">N-1A</dei:EntityInvCompanyType>
    <dei:DocumentPeriodEndDate
      contextRef="DefaultContext"
      id="h8_e463580c_adf2_4c2a_ba8c_f36aebc5eca8">2024-03-31</dei:DocumentPeriodEndDate>
    <rr:SupplementToProspectusTextBlock
      contextRef="DefaultContext"
      id="t_1_254e0a65_37b2_0117_0178_d96c5ab70786">&lt;div class="p0 ft0" style="text-align:left;padding-left:173px;margin-top:0px;margin-bottom:0px;font:bold 15px 'times new roman';line-height:17px;"&gt;VOYA SEPARATE PORTFOLIOS TRUST&lt;/div&gt;&lt;div class="p1 ft1" style="text-align:left;padding-left:205px;margin-top:0px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;Voya Investment Grade Credit Fund&lt;/div&gt;&lt;div class="p2 ft1" style="text-align:left;padding-left:275px;margin-top:3px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;(the &#x201c;Fund&#x201d;)&lt;/div&gt;&lt;div class="p3 ft1" style="text-align:left;padding-left:216px;margin-top:14px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;Supplement dated May 30, 2025&lt;/div&gt;&lt;div class="p4 ft1" style="text-align:left;padding-left:130px;margin-top:0px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;to the Funds&#x2019; Class A, Class I, Class R6, and Class W Shares&#x2019;&lt;/div&gt;&lt;div class="p5 ft1" style="text-align:left;padding-left:75px;margin-top:0px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;Summary Prospectus and Prospectus, each dated July 31, 2024, as supplemented&lt;/div&gt;&lt;div class="p6 ft1" style="text-align:left;padding-left:224px;margin-top:2px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;(together, the &#x201c;Prospectuses&#x201d;)&lt;/div&gt;&lt;div class="p7 ft0" style="text-align:left;padding-left:51px;margin-top:17px;margin-bottom:0px;font:bold 15px 'times new roman';line-height:17px;"&gt;IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT POLICY&lt;/div&gt;&lt;div class="p8 ft1" style="text-align:left;padding-right:100px;margin-top:18px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;In accordance with recent changes to regulatory disclosure requirements regarding investment company names, the Fund&#x2019;s policy to invest in accordance with the investment focus that the Fund&#x2019;s name suggests (the &#x201c;80% Investment Policy&#x201d;) is changed effective July 31, 2025 (the &#x201c;Effective Date&#x201d;), as set forth below.&lt;/div&gt;&lt;table cellpadding="0" cellspacing="0" class="t0" style="width:624px;margin-top:12px;font:15px 'times new roman'"&gt;
&lt;tr&gt;
&lt;td class="tr0 td0" style="height:16.5pt;border-left:#000000 1px solid;border-right:#000000 1px solid;border-top:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p9 ft0" style="text-align:left;padding-left:56px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:bold 15px 'times new roman';line-height:17px;"&gt;Current 80% Investment Policy&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr0 td1" style="height:16.5pt;border-right:#000000 1px solid;border-top:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p10 ft0" style="text-align:left;padding-left:39px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:bold 15px 'times new roman';line-height:17px;"&gt;New 80% Investment Policy as of the&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td2" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p11 ft2" style="text-align:left;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:1px 'times new roman';line-height:1px;"&gt;&#160;&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td3" style="height:12.75pt;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p12 ft0" style="text-align:left;padding-left:111px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:bold 15px 'times new roman';line-height:17px;"&gt;Effective Date&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr2 td4" style="height:12pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft3" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:16px;"&gt;Under normal market conditions, the Fund invests&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr2 td5" style="height:12pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft3" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:16px;"&gt;Under normal circumstances, the Fund invests at&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td4" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft1" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;at least 80% of its net assets (plus borrowings for&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td5" style="height:12.75pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;least 80% of its net assets (plus the amount of any&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td4" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft1" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;investment purposes) in investment-grade fixed-&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td5" style="height:12.75pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;borrowings for investment purposes) in&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td4" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft1" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;income securities.&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td5" style="height:12.75pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;investments with an investment grade credit&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td6" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p11 ft2" style="text-align:left;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:1px 'times new roman';line-height:1px;"&gt;&#160;&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td7" style="height:12.75pt;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;rating.&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;

&lt;/table&gt;&lt;div class="p15 ft1" style="text-align:left;padding-right:102px;margin-top:15px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;For purposes of the New 80% Investment Policy, an investment with an investment grade credit rating means an instrument that is rated investment grade by one or more nationally recognized statistical rating organizations (&#x201c;NRSROs&#x201d;) (&lt;span class="ft4" style="font:italic 15px 'times new roman';line-height:17px"&gt;e.g.&lt;/span&gt;, rated Baa3 or above by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;), or BBB- or above by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings, Inc. (&#x201c;Fitch&#x201d;)) or, if unrated, is determined by the Fund to be of comparable quality.&lt;/div&gt;</rr:SupplementToProspectusTextBlock>
    <rr:SupplementToProspectusTextBlock
      contextRef="S000017462Member"
      id="t_2_90a8f7a3_bf65_50fe_56d6_ec9124a42f45">&lt;div class="p0 ft0" style="text-align:left;padding-left:173px;margin-top:0px;margin-bottom:0px;font:bold 15px 'times new roman';line-height:17px;"&gt;VOYA SEPARATE PORTFOLIOS TRUST&lt;/div&gt;&lt;div class="p1 ft1" style="text-align:left;padding-left:205px;margin-top:0px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;Voya Investment Grade Credit Fund&lt;/div&gt;&lt;div class="p2 ft1" style="text-align:left;padding-left:275px;margin-top:3px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;(the &#x201c;Fund&#x201d;)&lt;/div&gt;&lt;div class="p3 ft1" style="text-align:left;padding-left:216px;margin-top:14px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;Supplement dated May 30, 2025&lt;/div&gt;&lt;div class="p4 ft1" style="text-align:left;padding-left:130px;margin-top:0px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;to the Funds&#x2019; Class A, Class I, Class R6, and Class W Shares&#x2019;&lt;/div&gt;&lt;div class="p5 ft1" style="text-align:left;padding-left:75px;margin-top:0px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;Summary Prospectus and Prospectus, each dated July 31, 2024, as supplemented&lt;/div&gt;&lt;div class="p6 ft1" style="text-align:left;padding-left:224px;margin-top:2px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;(together, the &#x201c;Prospectuses&#x201d;)&lt;/div&gt;&lt;div class="p7 ft0" style="text-align:left;padding-left:51px;margin-top:17px;margin-bottom:0px;font:bold 15px 'times new roman';line-height:17px;"&gt;IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT POLICY&lt;/div&gt;&lt;div class="p8 ft1" style="text-align:left;padding-right:100px;margin-top:18px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;In accordance with recent changes to regulatory disclosure requirements regarding investment company names, the Fund&#x2019;s policy to invest in accordance with the investment focus that the Fund&#x2019;s name suggests (the &#x201c;80% Investment Policy&#x201d;) is changed effective July 31, 2025 (the &#x201c;Effective Date&#x201d;), as set forth below.&lt;/div&gt;&lt;table cellpadding="0" cellspacing="0" class="t0" style="width:624px;margin-top:12px;font:15px 'times new roman'"&gt;
&lt;tr&gt;
&lt;td class="tr0 td0" style="height:16.5pt;border-left:#000000 1px solid;border-right:#000000 1px solid;border-top:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p9 ft0" style="text-align:left;padding-left:56px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:bold 15px 'times new roman';line-height:17px;"&gt;Current 80% Investment Policy&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr0 td1" style="height:16.5pt;border-right:#000000 1px solid;border-top:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p10 ft0" style="text-align:left;padding-left:39px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:bold 15px 'times new roman';line-height:17px;"&gt;New 80% Investment Policy as of the&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td2" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p11 ft2" style="text-align:left;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:1px 'times new roman';line-height:1px;"&gt;&#160;&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td3" style="height:12.75pt;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;background:#e7e6e6;"&gt;
&lt;div class="p12 ft0" style="text-align:left;padding-left:111px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:bold 15px 'times new roman';line-height:17px;"&gt;Effective Date&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr2 td4" style="height:12pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft3" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:16px;"&gt;Under normal market conditions, the Fund invests&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr2 td5" style="height:12pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft3" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:16px;"&gt;Under normal circumstances, the Fund invests at&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td4" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft1" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;at least 80% of its net assets (plus borrowings for&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td5" style="height:12.75pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;least 80% of its net assets (plus the amount of any&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td4" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft1" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;investment purposes) in investment-grade fixed-&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td5" style="height:12.75pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;borrowings for investment purposes) in&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td4" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p13 ft1" style="text-align:left;padding-left:8px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;income securities.&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td5" style="height:12.75pt;border-right:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;investments with an investment grade credit&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class="tr1 td6" style="height:12.75pt;border-left:#000000 1px solid;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p11 ft2" style="text-align:left;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:1px 'times new roman';line-height:1px;"&gt;&#160;&lt;/div&gt;
&lt;/td&gt;
&lt;td class="tr1 td7" style="height:12.75pt;border-right:#000000 1px solid;border-bottom:#000000 1px solid;padding:0pt;margin:0pt;width:233.25pt;vertical-align:bottom;"&gt;
&lt;div class="p14 ft1" style="text-align:left;padding-left:6px;margin-top:0px;margin-bottom:0px;white-space:nowrap;font:15px 'times new roman';line-height:17px;"&gt;rating.&lt;/div&gt;
&lt;/td&gt;
&lt;/tr&gt;

&lt;/table&gt;&lt;div class="p15 ft1" style="text-align:left;padding-right:102px;margin-top:15px;margin-bottom:0px;font:15px 'times new roman';line-height:17px;"&gt;For purposes of the New 80% Investment Policy, an investment with an investment grade credit rating means an instrument that is rated investment grade by one or more nationally recognized statistical rating organizations (&#x201c;NRSROs&#x201d;) (&lt;span class="ft4" style="font:italic 15px 'times new roman';line-height:17px"&gt;e.g.&lt;/span&gt;, rated Baa3 or above by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;), or BBB- or above by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings, Inc. (&#x201c;Fitch&#x201d;)) or, if unrated, is determined by the Fund to be of comparable quality.&lt;/div&gt;</rr:SupplementToProspectusTextBlock>
    <dei:EntityRegistrantName
      contextRef="DefaultContext"
      id="t_3_895b99a4_120d_0366_f124_feb0bd8e8bd2">VOYA SEPARATE PORTFOLIOS TRUST</dei:EntityRegistrantName>
    <dei:DocumentCreationDate
      contextRef="DefaultContext"
      id="t_4_91436216_9332_e39d_1c97_485ddccf95b1">2025-05-30</dei:DocumentCreationDate>
    <rr:ProspectusDate
      contextRef="DefaultContext"
      id="t_5_2acbc7c2_76e3_37df_178d_7c47073b3218">2024-07-31</rr:ProspectusDate>
</xbrl>
