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Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

AMERICAN FUNDS FUNDAMENTAL INVESTORS®

Objective [Heading]

rr_ObjectiveHeading

Investment objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The fund’s investment objective is to achieve long-term growth of capital and income.

Expense [Heading]

rr_ExpenseHeading

Fees and expenses of the fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in American Funds. More information about these and other discounts is available from your financial professional and in the “Sales charge reductions and waivers” section on page 28 of the prospectus and on page 61 of the fund’s statement of additional information.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s investment results. During the most recent fiscal year, the fund’s portfolio turnover rate was 29% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in American Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds.

The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

For the share classes listed below, you would pay the following if you did not redeem your shares:

Strategy [Heading]

rr_StrategyHeading

Principal investment strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The fund seeks to invest primarily in common stocks of companies that appear to offer superior opportunities for capital growth and most of which have a history of paying dividends. In addition, the fund may invest significantly in securities of issuers domiciled outside the United States.

The investment adviser uses a system of multiple portfolio managers in managing the fund’s assets. Under this approach, the portfolio of the fund is divided into segments managed by individual managers who decide how their respective segments will be invested.

The fund relies on the professional judgment of its investment adviser to make decisions about the fund’s portfolio investments. The basic investment philosophy of the investment adviser is to seek to invest in attractively valued companies that, in its opinion, represent good, long-term investment opportunities. The investment adviser believes that an important way to accomplish this is through fundamental analysis, which may include meeting with company executives and employees, suppliers, customers and competitors. Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities.

rr_RiskHeading

Principal risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

This section describes the principal risks associated with the fund’s principal investment strategies. You may lose money by investing in the fund. The likelihood of loss may be greater if you invest for a shorter period of time. Investors in the fund should have a long-term perspective and be able to tolerate potentially sharp declines in value.

Market conditions — The prices of, and the income generated by, the common stocks and other securities held by the fund may decline – sometimes rapidly or unpredictably – due to various factors, including events or conditions affecting the general economy or particular industries; overall market changes; local, regional or global political, social or economic instability; governmental or governmental agency responses to economic conditions; and currency exchange, interest rate and commodity price fluctuations.

Issuer risks — The prices of, and the income generated by, securities held by the fund may decline in response to various factors directly related to the issuers of such securities, including reduced demand for an issuer’s goods or services, poor management performance and strategic initiatives such as mergers, acquisitions or dispositions and the market response to any such initiatives.

Investing in growth-oriented stocks — Growth-oriented common stocks and other equity-type securities (such as preferred stocks, convertible preferred stocks and convertible bonds) may involve larger price swings and greater potential for loss than other types of investments.

Investing in income-oriented stocks — Income provided by the fund may be reduced by changes in the dividend policies of, and the capital resources available for dividend payments at, the companies in which the fund invests.

Investing outside the United States — Securities of issuers domiciled outside the United States, or with significant operations or revenues outside the United States, may lose value because of adverse political, social, economic or market developments (including social instability, regional conflicts, terrorism and war) in the countries or regions in which the issuers operate or generate revenue. These securities may also lose value due to changes in foreign currency exchange rates against the U.S. dollar and/or currencies of other countries. Issuers of these securities may be more susceptible to actions of foreign governments, such as the imposition of price controls or punitive taxes, that could adversely impact revenues. Securities markets in certain countries may be more volatile and/or less liquid than those in the United States. Investments outside the United States may also be subject to different accounting practices and different regulatory, legal and reporting standards and practices, and may be more difficult to value, than those in the United States. In addition, the value of investments outside the United States may be reduced by foreign taxes, including foreign withholding taxes on interest and dividends. Further, there may be increased risks of delayed settlement of securities purchased or sold by the fund. The risks of investing outside the United States may be heightened in connection with investments in emerging markets.

Management — The investment adviser to the fund actively manages the fund’s investments. Consequently, the fund is subject to the risk that the methods and analyses employed by the investment adviser in this process may not produce the desired results. This could cause the fund to lose value or its investment results to lag relevant benchmarks or other funds with similar objectives.

Your investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, entity or person. You should consider how this fund fits into your overall investment program.

Risk Lose Money [Text]

rr_RiskLoseMoney

You may lose money by investing in the fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

Your investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, entity or person.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Investment results

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with different broad measures of market results. This information provides some indication of the risks of investing in the fund. The Lipper Growth and Income Funds Index includes the fund and other funds that disclose investment objectives and/or strategies reasonably comparable to those of the fund. The MSCI World Index reflects certain market sectors in which the fund may invest. Past investment results (before and after taxes) are not predictive of future investment results. Updated information on the fund’s investment results can be obtained by visiting americanfunds.com.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with different broad measures of market results.

Performance Additional Market Index [Text]

rr_PerformanceAdditionalMarketIndex

The Lipper Growth and Income Funds Index includes the fund and other funds that disclose investment objectives and/or strategies reasonably comparable to those of the fund. The MSCI World Index reflects certain market sectors in which the fund may invest. Past investment results (before and after taxes) are not predictive of future investment results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

americanfunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past investment results (before and after taxes) are not predictive of future investment results.

Bar Chart [Heading]

rr_BarChartHeading

Calendar year total returns for Class A shares (Results do not include a sales charge; if a sales charge were included, results would be lower.)

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The following bar chart shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compare with different broad measures of market results.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Results do not include a sales charge; if a sales charge were included, results would be lower.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest/Lowest quarterly results during this period were:

Highest 17.14% (quarter ended June 30, 2009)

Lowest -23.34% (quarter ended December 31, 2008)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-favored arrangement, such as a 401(k) plan, individual retirement account (IRA) or 529 college savings plan.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. After-tax returns are calculated using the highest individual federal income tax rates in effect during each year of the periods shown and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation and likely will differ from the results shown above. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-favored arrangement, such as a 401(k) plan, individual retirement account (IRA) or 529 college savings plan.

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

Class A annualized 30–day yield at December 31, 2014: 1.27%
(For current yield information, please call American FundsLine® at (800) 325-3590.)

rr_AverageAnnualReturnCaption

Average annual total returns For the periods ended December 31, 2014 (with maximum sales charge):

S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)

Risk/Return:

rr_RiskReturnAbstract

rr_AverageAnnualReturnLabel

S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1978

Lipper Growth and Income Funds Index (reflects no deductions for sales charges, account fees or U.S. federal income taxes)

Risk/Return:

rr_RiskReturnAbstract

rr_AverageAnnualReturnLabel

Lipper Growth and Income Funds Index (reflects no deductions for sales charges, account fees or U.S. federal income taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1978

MSCI® World Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)

Risk/Return:

rr_RiskReturnAbstract

rr_AverageAnnualReturnLabel

MSCI® World Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1978

Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

^[1]

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

A contingent deferred sales charge of 1.00% applies on certain redemptions within one year following purchases of $1 million or more made without an initial sales charge.

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Annual Return 2005

rr_AnnualReturn2005

Annual Return 2006

rr_AnnualReturn2006

Annual Return 2007

rr_AnnualReturn2007

Annual Return 2008

rr_AnnualReturn2008

Annual Return 2009

rr_AnnualReturn2009

Annual Return 2010

rr_AnnualReturn2010

Annual Return 2011

rr_AnnualReturn2011

Annual Return 2012

rr_AnnualReturn2012

Annual Return 2013

rr_AnnualReturn2013

Annual Return 2014

rr_AnnualReturn2014

rr_AverageAnnualReturnLabel

A Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 01, 1978

Thirty Day Yield Caption

rr_ThirtyDayYieldCaption

Class A annualized 30–day yield at December 31, 2014:

Thirty Day Yield Phone

rr_ThirtyDayYieldPhone

(800) 325-3590

Thirty Day Yield

rr_ThirtyDayYield

Class A | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

rr_AverageAnnualReturnLabel

A After taxes on distributions

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class A | After Taxes on Distributions and Sale of Fund Shares

Risk/Return:

rr_RiskReturnAbstract

rr_AverageAnnualReturnLabel

A After taxes on distributions and sale of fund shares

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Class 529-A

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

^[1]

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

A contingent deferred sales charge of 1.00% applies on certain redemptions within one year following purchases of $1 million or more made without an initial sales charge.

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

529-A Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 15, 2002

Class B

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

rr_AverageAnnualReturnLabel

B Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 15, 2000

Class 529-B

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

rr_AverageAnnualReturnLabel

529-B Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 19, 2002

Class C

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

rr_AverageAnnualReturnLabel

C Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 15, 2001

Class 529-C

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

rr_AverageAnnualReturnLabel

529-C Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 15, 2002

Class 529-E

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

529-E Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 07, 2002

Class F-1

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

F-1 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 15, 2001

Class 529-F-1

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

529-F-1 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Sep. 23, 2002

Class F-2

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

F-2 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 01, 2008

Class R-1

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

R-1 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Jun. 19, 2002

Class R-2

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

R-2 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

May 21, 2002

Class R-3

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

R-3 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Jun. 04, 2002

Class R-4

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

R-4 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Jul. 25, 2002

Class R-5

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

R-5 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

May 15, 2002

Class R-6

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

Total annual fund operating expenses

rr_ExpensesOverAssets

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

rr_AverageAnnualReturnLabel

R-6 Before taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2009

Class R-2E

Risk/Return:

rr_RiskReturnAbstract

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the amount redeemed)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum sales charge (load) imposed on reinvested dividends

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption or exchange fees

rr_RedemptionFeeOverRedemption

none

Management fees

rr_ManagementFeesOverAssets

Distribution and/or service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

^[2]

rr_OtherExpensesOverAssets

^[2]

Total annual fund operating expenses

rr_ExpensesOverAssets

Other Expenses, New Fund, Based on Estimates [Text]

rr_OtherExpensesNewFundBasedOnEstimates

Based on estimated amounts for the current fiscal year.

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

[1]	A contingent deferred sales charge of 1.00% applies on certain redemptions within one year following purchases of $1 million or more made without an initial sales charge.
[2]	Based on estimated amounts for the current fiscal year.