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Label

Element

Value

Risk/Return:

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Risk/Return [Heading]

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AMERICAN BALANCED FUND®

Objective [Heading]

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Investment objectives

Objective, Primary [Text Block]

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The investment objectives of the fund are: (1) conservation of capital, (2) current income and (3) long-term growth of capital and income.

Expense [Heading]

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Fees and expenses of the fund

Expense Narrative [Text Block]

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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 65 of the fund’s statement of additional information.

Shareholder Fees Caption [Text]

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Shareholder fees (fees paid directly from your investment)

Portfolio Turnover [Heading]

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Portfolio turnover

Portfolio Turnover [Text Block]

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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 68% of the average value of its portfolio.

Portfolio Turnover, Rate

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Expense Breakpoint Discounts [Text]

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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]

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Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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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]

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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]

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

Strategy [Heading]

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Principal investment strategies

Strategy Narrative [Text Block]

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The fund uses a balanced approach to invest in a broad range of securities, including common stocks and investment-grade bonds (rated Baa3 or better or BBB- or better by Nationally Recognized Statistical Rating Organizations designated by the fund’s investment adviser or unrated but determined to be of equivalent quality). The fund also invests in securities issued and guaranteed by the U.S. government and by federal agencies and instrumentalities. In addition, the fund may invest a portion of its assets in common stocks, most of which have a history of paying dividends, bonds and other securities of issuers domiciled outside the United States.

Normally the fund will maintain at least 50% of the value of its assets in common stocks and at least 25% of the value of its assets in debt securities, including money market securities. Although the fund focuses on investments in medium to larger capitalization companies, the fund’s investments are not limited to a particular capitalization size.

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 securities 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.

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Principal risks

Risk Narrative [Text Block]

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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.

Market conditions — The prices of, and the income generated by, the common stocks, bonds 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 in debt instruments — The prices of, and the income generated by, bonds and other debt securities held by the fund may be affected by changing interest rates and by changes in the effective maturities and credit ratings of these securities.

Rising interest rates will generally cause the prices of bonds and other debt securities to fall. Falling interest rates may cause an issuer to redeem, call or refinance a debt security before its stated maturity, which may result in the fund having to reinvest the proceeds in lower yielding securities. Longer maturity debt securities generally have greater sensitivity to changes in interest rates and may be subject to greater price fluctuations than shorter maturity debt securities.

Bonds and other debt securities are also subject to credit risk, which is the possibility that the credit strength of an issuer will weaken and/or an issuer of a debt security will fail to make timely payments of principal or interest and the security will go into default. Lower quality debt securities generally have higher rates of interest and may be subject to greater price fluctuations than higher quality debt securities. Credit risk is gauged, in part, by the credit ratings of the debt securities in which the fund invests. However, ratings are only the opinions of the rating agencies issuing them and are not guarantees as to credit quality or an evaluation of market risk. The fund’s investment adviser relies on its own credit analysts to research issuers and issues in seeking to mitigate various credit and default risks.

Investing in securities backed by the U.S. government — Securities backed by the U.S. Treasury or the full faith and credit of the U.S. government are guaranteed only as to the timely payment of interest and principal when held to maturity. Accordingly, the current market values for these securities will fluctuate with changes in interest rates. Securities issued by government-sponsored entities and federal agencies and instrumentalities that are not backed by the full faith and credit of the U.S. government are neither issued nor guaranteed by the U.S. government.

Investing in mortgage-related and other asset-backed securities — Mortgage-related securities, such as mortgage-backed securities, and other asset-backed securities, include debt obligations that represent interests in pools of mortgages or other income-bearing assets, such as consumer loans or receivables. Such securities often involve risks that are different from or more acute than the risks associated with investing in other types of debt securities. Mortgage-backed and other asset-backed securities are subject to changes in the payment patterns of borrowers of the underlying debt. When interest rates fall, borrowers are more likely to refinance or prepay their debt before its stated maturity. This may result in the fund having to reinvest the proceeds in lower yielding securities, effectively reducing the fund’s income. Conversely, if interest rates rise and borrowers repay their debt more slowly than expected, the time in which the mortgage-backed and other asset-backed securities are paid off could be extended, reducing the fund’s cash available for reinvestment in higher yielding securities.

Thinly traded securities — There may be little trading in the secondary market for particular bonds or other debt securities, which may make them more difficult to value, acquire or sell.

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]

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You may lose money by investing in the fund.

Risk Not Insured Depository Institution [Text]

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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]

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Investment results

Performance Narrative [Text Block]

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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 60%/40% S&P/Barclays Index is a composite blend of 60% of the S&P 500 Index and 40% of the Barclays U.S. Aggregate Index and represents a broad measure of the U.S. stock and bond markets, including market sectors in which the fund may invest. The Lipper Balanced Funds Index includes the fund and other funds that disclose investment objectives and/or strategies reasonably comparable to those of the fund. 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]

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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]

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The 60%/40% S&P/Barclays Index is a composite blend of 60% of the S&P 500 Index and 40% of the Barclays U.S. Aggregate Index and represents a broad measure of the U.S. stock and bond markets, including market sectors in which the fund may invest. The Lipper Balanced Funds Index includes the fund and other funds that disclose investment objectives and/or strategies reasonably comparable to those of the fund.

Performance Availability Website Address [Text]

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americanfunds.com

Performance Past Does Not Indicate Future [Text]

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

Bar Chart [Heading]

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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]

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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]

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

Bar Chart Closing [Text Block]

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Highest/Lowest quarterly results during this period were:

Highest 11.73% (quarter ended June 30, 2009)

Lowest -14.46% (quarter ended December 31, 2008)

Highest Quarterly Return, Label

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Highest

Highest Quarterly Return, Date

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Jun. 30, 2009

Highest Quarterly Return

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Lowest Quarterly Return, Label

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Lowest

Lowest Quarterly Return, Date

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Dec. 31, 2008

Lowest Quarterly Return

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Performance Table Uses Highest Federal Rate

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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

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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]

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

Performance Table Narrative

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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]

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Class A annualized 30-day yield at December 31, 2014: 1.56%
(For current yield information, please call American FundsLine® at (800) 325-3590.)

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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:

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

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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

Risk/Return:

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

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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60%/40% S&P/Barclays Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)

Risk/Return:

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60%/40% S&P/Barclays Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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

Risk/Return:

rr_RiskReturnAbstract

rr_AverageAnnualReturnLabel

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

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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Class A

Risk/Return:

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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

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none

Management fees

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

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rr_OtherExpensesOverAssets

Total annual fund operating expenses

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Expenses Deferred Charges [Text Block]

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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

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Expense Example, with Redemption, 3 Years

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Expense Example, with Redemption, 5 Years

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Expense Example, with Redemption, 10 Years

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Annual Return 2005

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Annual Return 2006

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Annual Return 2007

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Annual Return 2008

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Annual Return 2009

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Annual Return 2010

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Annual Return 2011

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Annual Return 2012

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Annual Return 2013

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Annual Return 2014

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rr_AverageAnnualReturnLabel

A Before taxes

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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Thirty Day Yield Caption

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

Thirty Day Yield Phone

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(800) 325-3590

Thirty Day Yield

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Class A | After Taxes on Distributions

Risk/Return:

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A After taxes on distributions

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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

Risk/Return:

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rr_AverageAnnualReturnLabel

A After taxes on distributions and sale of fund shares

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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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]

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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

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Expense Example, with Redemption, 3 Years

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Expense Example, with Redemption, 5 Years

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Expense Example, with Redemption, 10 Years

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rr_AverageAnnualReturnLabel

529-A Before taxes

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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Average Annual Returns, Since Inception

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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

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Expense Example, with Redemption, 5 Years

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Expense Example, with Redemption, 10 Years

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Expense Example, No Redemption, 1 Year

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Expense Example, No Redemption, 3 Years

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Expense Example, No Redemption, 5 Years

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Expense Example, No Redemption, 10 Years

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rr_AverageAnnualReturnLabel

B Before taxes

Average Annual Returns, 1 Year

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Average Annual Returns, 5 Years

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Average Annual Returns, 10 Years

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Average Annual Returns, Since Inception

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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

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Expense Example, with Redemption, 5 Years

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Expense Example, with Redemption, 10 Years

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Expense Example, No Redemption, 1 Year

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Expense Example, No Redemption, 3 Years

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Expense Example, No Redemption, 5 Years

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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

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Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Feb. 15, 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

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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

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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. 19, 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. 05, 2002

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. 17, 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 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. 05, 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

May 29, 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

Jun. 21, 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.