CAPITAL INCOME BUILDER Class A Class 529-A Class C Class 529-C Class 529-E Class 529-T Class T Class F-1 Class 529-F-1 Class F-2 Class F-3 Class 529-F-2 Class 529-F-3 Class R-1 Class R-2 Class R-3 Class R-4 Class R-5 Class R-6 Class R-2E Class R-5E Market conditions [Member] Issuer risks [Member] Investing in income-oriented stocks [Member] Investing in debt instruments [Member] Investing outside the United States [Member] Management [Member] MSCI® All Country World Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) 70%/30% MSCI All Country World Index/Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) index_ Bloomberg_ US_ Aggregate_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member C000077881 Member C000164810 Member Market Conditions Member S000009000 Member C000024463 Member C000024468 Member C000024475 Member Investing In Incomeoriented Stocks Member C000024465 Member C000148440 Member C000024470 Member index_ MSCI_ All_ Country_ World_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member C000024472 Member Issuer Risks Member C000224566 Member C000024467 Member C000024474 Member C000189419 Member C000024464 Member C000189418 Member index_7030_ MSCI_ All_ Country_ World_ Index Bloomberg_ US_ Aggregate_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member ManagementMember Investing In Debt Instruments Member C000180006 Member C000224565 Member C000024476 Member Investing Outside The United States Member C000024471 Member C000024466 Member C000068596 Member