v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
American Funds 2070 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2070 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2070 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2070 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2070 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2065 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2065 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2065 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2065 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund® - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund® - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund® - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund® - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund® - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund® - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund® - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund® - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund® - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund® - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund® - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund® - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund® - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2060 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2060 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2060 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2060 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2055 Target Date Retirement Fund® - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
American Funds 2055 Target Date Retirement Fund® - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 37.00%
American Funds 2055 Target Date Retirement Fund® - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
American Funds 2055 Target Date Retirement Fund® - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2055 Target Date Retirement Fund® - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2055 Target Date Retirement Fund® - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2050 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 47.00%
American Funds 2050 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 35.00%
American Funds 2050 Target Date Retirement Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2050 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2050 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
American Funds 2050 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund® - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund® - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund® - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund® - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund® - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund® - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2045 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 43.00%
American Funds 2045 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.00%
American Funds 2045 Target Date Retirement Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
American Funds 2045 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2045 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2040 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 34.00%
American Funds 2040 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.00%
American Funds 2040 Target Date Retirement Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
American Funds 2040 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00%
American Funds 2040 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2040 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2035 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2035 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 30.00%
American Funds 2035 Target Date Retirement Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2035 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2035 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.00%
American Funds 2035 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2030 Target Date Retirement Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
American Funds 2030 Target Date Retirement Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2030 Target Date Retirement Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
American Funds 2030 Target Date Retirement Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 38.00%
American Funds 2030 Target Date Retirement Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2025 Target Date Retirement Income Fund - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 23.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 45.00%
American Funds 2025 Target Date Retirement Income Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class A | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class C | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class T | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class F-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class F-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class F-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-1 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-2 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-2E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-3 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-4 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-5E | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund - Class R-5 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2020 Target Date Retirement Income Fund® - Class R-6 | Growth funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
American Funds 2020 Target Date Retirement Income Fund® - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2020 Target Date Retirement Income Fund® - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2020 Target Date Retirement Income Fund® - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
American Funds 2020 Target Date Retirement Income Fund® - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 46.00%
American Funds 2020 Target Date Retirement Income Fund® - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund® - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund® - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund® - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund® - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund® - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund® - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund® - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund® - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund® - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund® - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund® - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund® - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund® - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund® - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund® - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund® - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund® - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund® - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund® - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund® - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2015 Target Date Retirement Income Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 19.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 21.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 50.00%
American Funds 2015 Target Date Retirement Income Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class A | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class A | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class A | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class A | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class A | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class C | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class C | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class C | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class C | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class C | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class T | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class T | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class T | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class T | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class T | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class F-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class F-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class F-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class F-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-1 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-1 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-1 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-1 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-1 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-2 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-2E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-2E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-3 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-3 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-3 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-3 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-3 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-4 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-4 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-4 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-4 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-4 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-5E | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5E | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5E | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5E | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5E | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-5 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-5 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
American Funds 2010 Target Date Retirement Income Fund - Class R-6 | Growth-and-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-6 | Equity-income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-6 | Balanced funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-6 | Fixed income funds [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 52.00%
American Funds 2010 Target Date Retirement Income Fund - Class R-6 | Other assets less liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.00% [1]
[1] Less than 1%.