INTERMEDIATE BOND FUND OF AMERICA Class A Class 529-A Class C Class 529-C Class 529-E Class 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 debt instruments [Member] Investing in mortgage-related and other asset-backed securities [Member] Investing in securities backed by the U.S. government [Member] Liquidity risk [Member] Investments in future delivery contracts [Member] Investing in inflation-linked bonds [Member] Investing outside the United States [Member] Investing in derivatives [Member] Management [Member] Bloomberg U.S. Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) Bloomberg 75% Government Credit 1–7 Years 25% Securitized 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 index_ Bloomberg_75_ Government_ Credit_17_ Years_25_ Securitized_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member C000025154 Member C000224562 Member Market Conditions Member Investments In Future Delivery Contracts Member C000025150 Member C000025149 Member C000025146 Member C000077900 Member Liquidity Risk Member Issuer Risks Member C000025153 Member C000224561 Member Investing In Derivatives Member S000009236 Member C000025158 Member C000025148 Member C000164803 Member C000068597 Member C000025151 Member C000148469 Member Investing In Mortgagerelated And Other Assetbacked Securities Member Investing In Inflationlinked Bonds Member C000025155 Member Investing In Securities Backed By The USGovernment Member ManagementMember Investing In Debt Instruments Member C000025157 Member Investing Outside The United States Member C000025147 Member C000179993 Member