American Funds Retirement Income Portfolio – Conservative American Funds Retirement Income Portfolio – Moderate American Funds Retirement Income Portfolio – Enhanced American Funds Retirement Income Portfolio – Conservative American Funds Retirement Income Portfolio – Moderate American Funds Retirement Income Portfolio – Enhanced Class A Class C Class T Class F-1 Class F-2 Class F-3 Class R-4 Class R-5 Class R-6 Class R-1 Class R-2 Class R-2E Class R-3 Class R-5E Class A Class C Class T Class F-1 Class F-2 Class F-3 Class R-1 Class R-2 Class R-2E Class R-3 Class R-4 Class R-5 Class R-6 Class R-5E Class A Class C Class T Class F-1 Class F-2 Class F-3 Class R-1 Class R-2 Class R-2E Class R-3 Class R-4 Class R-5 Class R-6 Class R-5E Periodic Withdrawal Risks [Member] Allocation Risk [Member] Fund Structure [Member] Underlying fund risks [Member] Market Conditions [Member] Issuer Risks [Member] Investing In Debt Instruments [Member] Investing In Securities Backed By The USGovernment [Member] Investing In Mortgagerelated And Other Assetbacked Securities [Member] Investing In Inflationlinked Bonds [Member] Liquidity risk [Member] Investing In Derivatives [Member] Investing In Stocks [Member] Investing outside the United States [Member] Interest Rate Risk [Member] Management [Member] S&P 500 Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) S&P Target Date Retirement Income Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) Bloomberg US Aggregate Index (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes) C000158419 Member C000158429 Member Periodic Withdrawal Risks Member index_ Bloomberg_ US_ Aggregate_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member C000158439 Member S000050187 Member C000158442 Member doc_ American_ Funds_ Retirement_ Income_ Portfolio_ Conservative Member C000158412 Member C000158422 Member C000158432 Member C000189478 Member doc_ American_ Funds_ Retirement_ Income_ Portfolio_ Enhanced Member C000158426 Member C000158436 Member C000158446 Member Underlying Fund Risks Member C000180022 Member C000158413 Member Investing In Derivatives Member C000158428 Member C000180021 Member Investing In Stocks Member Investing In Mortgagerelated And Other Assetbacked Securities Member C000158433 Member Fund Structure Member C000158445 Member S000050189 Member C000158430 Member Investing Outside The United States Member C000164836 Member C000164837 Member C000158414 Member Allocation Risk Member C000158424 Member C000158417 Member C000158427 Member Market Conditions Member C000158447 Member C000180020 Member C000158444 Member C000158434 Member C000158421 Member C000189477 Member S000050188 Member C000158441 Member C000158431 Member Liquidity Risk Member index_ SP_500_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member Issuer Risks Member C000158438 Member C000158418 Member C000164838 Member index_ SP_ Target_ Date_ Retirement_ Income_ Index_reflects_no_deductions_for_sales_charges_account_fees_expenses_or_ US_federal_income_taxes Member doc_ American_ Funds_ Retirement_ Income_ Portfolio_ Moderate Member Investing In Inflationlinked Bonds Member InterestRateRiskMember C000158423 Member C000158443 Member Investing In Securities Backed By The USGovernment Member C000158435 Member ManagementMember C000158420 Member Investing In Debt Instruments Member C000158440 Member C000158415 Member C000189476 Member