v3.23.4
Label Element Value
American Funds Global Growth Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading American Funds Global Growth Portfolio
Objective [Heading] rr_ObjectiveHeading Investment objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The fund’s investment objective is to provide long-term growth of capital.

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, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. For example, in addition to the fees and expenses described below, you may also be required to pay brokerage commissions on purchases and sales of Class F-2, F-3, 529-F-2, 529-F-3 or ABLE-F-2 shares of the fund. You may qualify for a Class A sales charge discount 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, in the “Sales charge reductions and waivers” sections on page 86 of the prospectus and on page 109 of the fund’s statement of additional information, and in the sales charge waiver appendix to the prospectus.

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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Jan. 01, 2025
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The fund may pay 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 9% of the average value of its portfolio.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 9.00%
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent Restated to reflect current fees.
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 or hold 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. The example reflects the fee waiver described above through the expiration date of such waiver and total annual fund operating expenses thereafter. You may be required to pay brokerage commissions on your purchases and sales of Class F-2, F-3, 529-F-2, 529-F-3 or ABLE-F-2 shares of the fund, which are not reflected in the example.

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 to the right, 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 will attempt to achieve its investment objective by investing in a mix of American Funds in different combinations and weightings. The underlying American Funds will primarily consist of growth funds. The fund may also invest in growth-and-income funds. Through its investments in the underlying funds, the fund will have significant exposure to growth-oriented common stocks.

The fund will typically have significant exposure to issuers domiciled outside the United States. The fund will seek to invest at least 25% of its net assets in underlying funds that invest significantly (under normal market conditions, at least 40%) in issuers domiciled outside the United States. The fund will have exposure to issuers domiciled in at least three different countries. The fund may also have exposure to smaller capitalization issuers and issuers domiciled in emerging markets. The investment adviser believes that exposure to issuers domiciled outside the United States can help provide diversification when seeking long-term growth of capital. The fund may also invest in underlying funds that hold bonds rated BB+ or below and Ba1 or below by Nationally Recognized Statistical Rating Organizations designated by the fund’s investment adviser, or unrated but determined by the fund’s investment adviser to be of equivalent quality. Securities rated BB+ or below and Ba1 or below are sometimes referred to as “junk bonds.”

The fund’s investment adviser seeks to create combinations of underlying funds that complement each other with a goal of achieving the fund’s investment objective of providing long-term growth of capital. In making this determination, the fund’s investment adviser considers the historical volatility and returns of the underlying funds and how various combinations would have behaved in past market environments. It also considers, among other topics, current market conditions and the investment positions of the underlying funds.

The fund’s investment adviser periodically reviews the investment strategies and asset mix of the underlying funds. The investment adviser will also consider whether overall market conditions would favor a change in the exposure of the fund to various asset types or geographic regions. Based on these considerations, the investment adviser may make adjustments to underlying fund holdings by adjusting the percentage of individual underlying funds within the fund, or adding or removing underlying funds. The investment adviser may also determine not to change the underlying fund allocations, particularly in response to short-term market movements, if in its opinion the combination of underlying funds is appropriate to meet the fund’s investment objective.

Risk [Heading] rr_RiskHeading Principal risks
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 a broad measure of securities market results and other applicable measures of market results. This information provides some indication of the risks of investing in the fund. The Lipper Global Large-Cap Growth Funds Index includes 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. Prior to October 30, 2020, certain fees, such as 12b-1 fees, were not charged on Class 529-F-1 shares. If these expenses had been deducted, results would have been lower. Updated information on the fund’s investment results can be obtained by visiting capitalgroup.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 a broad measure of securities market results and other applicable measures of market results.
Performance Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex The Lipper Global Large-Cap Growth Funds Index includes funds that disclose investment objectives and/or strategies reasonably comparable to those of the fund.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress capitalgroup.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 F-2 shares (Class F-2 shares are not subject to sales charges.)
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 a broad measure of securities market results and other applicable measures of market results.

Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads (Class F-2 shares are not subject to sales charges.)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Highest/Lowest quarterly results during this period were:

Highest 23.42% (quarter ended June 30, 2020)

Lowest -19.94% (quarter ended March 31, 2020)

The fund's total return for the nine months ended September 30, 2023, was 10.75%.

Year to Date Return, Label rr_YearToDateReturnLabel The fund's total return for the nine months ended
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2023
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 10.75%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 23.42%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (19.94%)
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-deferred 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 F-2 shares; after-tax returns for other share classes will vary.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

After-tax returns are shown only for Class F-2 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-deferred arrangement, such as a 401(k) plan, individual retirement account (IRA) or 529 college savings plan.

Average Annual Return, Caption rr_AverageAnnualReturnCaption Average annual total returns For the periods ended December 31, 2022:
American Funds Global Growth Portfolio | Risk Not Insured [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock 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.
American Funds Global Growth Portfolio | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock You may lose money by investing in the fund.
American Funds Global Growth Portfolio | Allocation risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Allocation risk — Investments in the fund are subject to risks related to the investment adviser’s allocation choices. The selection of the underlying funds and the allocation of the fund’s assets could cause the fund to lose value or its results to lag relevant benchmarks or other funds with similar objectives.
American Funds Global Growth Portfolio | Fund structure [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Fund structure — The fund invests in underlying funds and incurs expenses related to the underlying funds. In addition, investors in the fund will incur fees to pay for certain expenses related to the operations of the fund. An investor holding the underlying funds directly and in the same proportions as the fund would incur lower overall expenses but would not receive the benefit of the portfolio management and other services provided by the fund. Additionally, in accordance with an exemption under the Investment Company Act of 1940, as amended, the investment adviser considers only proprietary funds when selecting underlying investment options and allocations. This means that the fund’s investment adviser does not, nor does it expect to, consider any unaffiliated funds as underlying investment options for the fund. This strategy could raise certain conflicts of interest when determining the overall asset allocation of the fund or choosing underlying investments for the fund, including the selection of funds that result in greater compensation to the adviser or funds with relatively lower historical investment results. The investment adviser has policies and procedures designed to mitigate material conflicts of interest that may arise in connection with its management of the fund.
American Funds Global Growth Portfolio | Underlying fund risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Underlying fund risks — Because the fund’s investments consist of underlying funds, the fund’s risks are directly related to the risks of the underlying funds. For this reason, it is important to understand the risks associated with investing in the underlying funds, as described below.
American Funds Global Growth Portfolio | Market conditions [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market conditions — The prices of, and the income generated by, the common stocks, bonds and other securities held by the underlying funds may decline – sometimes rapidly or unpredictably – due to various factors, including events or conditions affecting the general economy or particular industries or companies; overall market changes; local, regional or global political, social or economic instability; governmental, governmental agency or central bank responses to economic conditions; changes in inflation rates; and currency exchange rate, interest rate and commodity price fluctuations. Economies and financial markets throughout the world are highly interconnected. Economic, financial or political events, trading and tariff arrangements, wars, terrorism, cybersecurity events, natural disasters, public health emergencies (such as the spread of infectious disease), bank failures and other circumstances in one country or region, including actions taken by governmental or quasi-governmental authorities in response to any of the foregoing, could have impacts on global economies or markets. As a result, whether or not the underlying funds invest in securities of issuers located in or with significant exposure to the countries affected, the value and liquidity of the underlying funds’ investments may be negatively affected by developments in other countries and regions.
American Funds Global Growth Portfolio | Issuer risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Issuer risks — The prices of, and the income generated by, securities held by the underlying funds 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, major litigation, investigations or other controversies related to the issuer, changes in the issuer’s financial condition or credit rating, changes in government regulations affecting the issuer or its competitive environment and strategic initiatives such as mergers, acquisitions or dispositions and the market response to any such initiatives. An individual security may also be affected by factors relating to the industry or sector of the issuer or the securities markets as a whole, and conversely an industry or sector or the securities markets may be affected by a change in financial condition or other event affecting a single issuer.
American Funds Global Growth Portfolio | Investing in stocks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Investing in stocks — Investing in stocks may involve larger price swings and greater potential for loss than other types of investments. As a result, the value of the underlying funds may be subject to sharp declines in value. Income provided by an underlying fund may be reduced by changes in the dividend policies of, and the capital resources available at, the companies in which the underlying fund invests. These risks may be even greater in the case of smaller capitalization stocks.
American Funds Global Growth Portfolio | Investing in small companies [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Investing in small companies — Investing in smaller companies may pose additional risks. For example, it is often more difficult to value or dispose of small company stocks and more difficult to obtain information about smaller companies than about larger companies. Furthermore, smaller companies often have limited product lines, operating histories, markets and/or financial resources, may be dependent on one or a few key persons for management, and can be more susceptible to losses. Moreover, the prices of their stocks may be more volatile than stocks of larger, more established companies, particularly during times of market turmoil.
American Funds Global Growth Portfolio | Investing outside the United States [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Investing outside the United States — Securities of issuers domiciled outside the United States or with significant operations or revenues outside the United States, and securities tied economically to countries 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 are domiciled, operate or generate revenue or to which the securities are tied economically. 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 nationalization, currency blockage or the imposition of price controls, sanctions, or punitive taxes, each of which could adversely impact the value of these securities. 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 regulatory, legal, accounting, auditing, financial reporting and recordkeeping requirements, 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 an underlying fund, which could impact the liquidity of the fund’s portfolio. The risks of investing outside the United States may be heightened in connection with investments in emerging markets.
American Funds Global Growth Portfolio | Investing in emerging markets [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Investing in emerging markets — Investing in emerging markets may involve risks in addition to and greater than those generally associated with investing in the securities markets of developed countries. For instance, emerging market countries tend to have less developed political, economic and legal systems than those in developed countries. Accordingly, the governments of these countries may be less stable and more likely to intervene in the market economy, for example, by imposing capital controls, nationalizing a company or industry, placing restrictions on foreign ownership and on withdrawing sale proceeds of securities from the country, and/or imposing punitive taxes that could adversely affect the prices of securities. Information regarding issuers in emerging markets may be limited, incomplete or inaccurate, and such issuers may not be subject to regulatory, accounting, auditing, and financial reporting and recordkeeping standards comparable to those to which issuers in more developed markets are subject. The underlying fund’s rights with respect to its investments in emerging markets, if any, will generally be governed by local law, which may make it difficult or impossible for the underlying fund to pursue legal remedies or to obtain and enforce judgments in local courts. In addition, the economies of these countries may be dependent on relatively few industries, may have limited access to capital and may be more susceptible to changes in local and global trade conditions and downturns in the world economy. Securities markets in these countries can also be relatively small and have substantially lower trading volumes. As a result, securities issued in these countries may be more volatile and less liquid, more vulnerable to market manipulation, and more difficult to value, than securities issued in countries with more developed economies and/or markets. Less certainty with respect to security valuations may lead to additional challenges and risks in calculating the underlying fund’s net asset value. Additionally, emerging markets are more likely to experience problems with the clearing and settling of trades and the holding of securities by banks, agents and depositories that are less established than those in developed countries.
American Funds Global Growth Portfolio | Management [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Management — The investment adviser to the fund and to the underlying funds actively manages each underlying fund’s investments. Consequently, the underlying funds are subject to the risk that the methods and analyses, including models, tools and data, employed by the investment adviser in this process may be flawed or incorrect and may not produce the desired results. This could cause an underlying fund to lose value or its investment results to lag relevant benchmarks or other funds with similar objectives.
American Funds Global Growth Portfolio | MSCI® All Country World Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (18.36%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 5.23%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.98%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.96%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Lipper Global Large-Cap Growth Funds Index (reflects no deductions for sales charges, account fees or U.S. federal income taxes)  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (27.41%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 5.49%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 8.39%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.16%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum deferred sales charge (load) (as a percentage of the amount redeemed) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00% [1]
Maximum sales charge (load) imposed on reinvested dividends rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption or exchange fees rr_RedemptionFeeOverRedemption none
Management fees rr_ManagementFeesOverAssets none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.24%
Other expenses rr_OtherExpensesOverAssets 0.13%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.81%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. Contingent deferred sales charge is calculated based on the lesser of the offering price and market value of shares being sold.
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for a Class A sales charge discount 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 $ 25,000
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 653
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 819
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 999
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,519
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (29.98%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.25%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.30%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.41%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Class 529-A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.50%
Maximum deferred sales charge (load) (as a percentage of the amount redeemed) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00% [1]
Maximum sales charge (load) imposed on reinvested dividends rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption or exchange fees rr_RedemptionFeeOverRedemption none
Management fees rr_ManagementFeesOverAssets none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.23%
Other expenses rr_OtherExpensesOverAssets 0.18%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.85%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. Contingent deferred sales charge is calculated based on the lesser of the offering price and market value of shares being sold.
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 434
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 612
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 805
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,362
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (28.32%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.69%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.50%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.61%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Class ABLE-A  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.50%
Maximum deferred sales charge (load) (as a percentage of the amount redeemed) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00% [1]
Maximum sales charge (load) imposed on reinvested dividends rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption or exchange fees rr_RedemptionFeeOverRedemption none
Management fees rr_ManagementFeesOverAssets none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.18%
Other expenses rr_OtherExpensesOverAssets 0.13%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.75%
Fee waiver rr_FeeWaiverOrReimbursementOverAssets 0.06% [2]
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 0.69%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock A contingent deferred sales charge of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. Contingent deferred sales charge is calculated based on the lesser of the offering price and market value of shares being sold.
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 418
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 575
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 747
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,242
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (28.18%)
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 3.24%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Jul. 13, 2018
American Funds Global Growth Portfolio | 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 1.00%
Maximum sales charge (load) imposed on reinvested dividends rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption or exchange fees rr_RedemptionFeeOverRedemption none
Management fees rr_ManagementFeesOverAssets none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.99%
Other expenses rr_OtherExpensesOverAssets 0.13%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.56%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 259
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 493
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 850
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,655
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 159
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 493
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 850
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,655
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (26.94%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.70%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.28%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.39%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 1.00%
Maximum sales charge (load) imposed on reinvested dividends rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption or exchange fees rr_RedemptionFeeOverRedemption none
Management fees rr_ManagementFeesOverAssets none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.19%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.63%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 266
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 514
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 887
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,443
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 166
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 514
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 887
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,443
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (26.98%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.64%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.45%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.55%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.14%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.08%
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 1.08%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 110
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 343
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 595
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,317
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.86%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.22%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.63%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.72%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Class T  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.50%
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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.13% [3]
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.82%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 332
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 505
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 694
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,238
American Funds Global Growth Portfolio | Class 529-T  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.50%
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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.18% [3]
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.87%
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 0.87%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 337
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 521
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 720
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,296
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.13%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.82%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 84
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 262
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 455
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,014
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.71%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.47%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.90%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.00%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.12%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.56%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 57
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 179
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 313
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 701
Annual Return 2013 rr_AnnualReturn2013 26.01%
Annual Return 2014 rr_AnnualReturn2014 2.59%
Annual Return 2015 rr_AnnualReturn2015 0.55%
Annual Return 2016 rr_AnnualReturn2016 3.99%
Annual Return 2017 rr_AnnualReturn2017 28.96%
Annual Return 2018 rr_AnnualReturn2018 (8.82%)
Annual Return 2019 rr_AnnualReturn2019 28.29%
Annual Return 2020 rr_AnnualReturn2020 27.74%
Annual Return 2021 rr_AnnualReturn2021 13.21%
Annual Return 2022 rr_AnnualReturn2022 (25.48%)
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.48%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.74%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 8.19%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.28%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Class F-2 | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (26.79%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.65%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.21%
American Funds Global Growth Portfolio | Class F-2 | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (14.09%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.70%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 6.61%
American Funds Global Growth Portfolio | Class F-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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.01%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 144
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 567
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.43%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.85%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 7.76%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Jan. 27, 2017
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.19%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.88%
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 0.88%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 90
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 281
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 488
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,084
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.56%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.67%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 8.11%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.20%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | Class 529-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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.14% [3]
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.58%
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 0.58%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 59
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 186
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 324
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 726
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.51%)
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 0.39%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Oct. 30, 2020
American Funds Global Growth Portfolio | Class 529-F-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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.07%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.51%
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 0.51%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 164
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 285
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 640
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.45%)
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 0.46%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Oct. 30, 2020
American Funds Global Growth Portfolio | Class ABLE-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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.13%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.57%
Fee waiver rr_FeeWaiverOrReimbursementOverAssets 0.06% [2]
Total annual fund operating expenses after fee waiver rr_NetExpensesOverAssets 0.51%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 52
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 177
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 312
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 708
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.46%)
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 0.48%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Oct. 30, 2020
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00% [3]
Other expenses rr_OtherExpensesOverAssets 0.09%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.53%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 156
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 483
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 834
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,824
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (26.17%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.78%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.15%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.24%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Other expenses rr_OtherExpensesOverAssets 0.35%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.54%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 157
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 486
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 839
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,834
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (26.26%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 3.71%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.11%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.21%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.15%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.09%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 111
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 347
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 601
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,329
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.92%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.18%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.60%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.68%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.11%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.80%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 82
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 255
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 444
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 990
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.68%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.50%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 7.93%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.03%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.06%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 160
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 280
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 628
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.43%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.81%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 8.25%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.33%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.01%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.45%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 46
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 144
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 567
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.45%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.85%
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 8.30%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 9.37%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 18, 2012
American Funds Global Growth Portfolio | 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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.60%
Other expenses rr_OtherExpensesOverAssets 0.21%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 1.25%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 127
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 397
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 686
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,511
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (26.00%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.02%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 5.67%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Aug. 29, 2014
American Funds Global Growth Portfolio | Class R-5E  
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 none
Distribution and/or service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.15%
Acquired (underlying) fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.44%
Total annual fund operating expenses rr_ExpensesOverAssets 0.59%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 60
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 189
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 329
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 738
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (25.53%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 4.71%
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 7.25%
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Nov. 20, 2015
[1] A contingent deferred sales charge of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. Contingent deferred sales charge is calculated based on the lesser of the offering price and market value of shares being sold.
[2] Virginia529, as program administrator of ABLEAmerica, is currently waiving the fee owed to it as compensation for its oversight and administration of ABLEAmerica. This waiver will be in effect through at least January 1, 2025. Subject to the terms of its contractual arrangement with the investment adviser, Virginia529 may elect to extend, modify or terminate the waiver at that time.
[3] Restated to reflect current fees.