Shareholder Report, Average Annual Return (Details) 74200198200_Franklin Retirement Advantage 2070 Fund_Class R5_TSR Annual {Class R5} |
12 Months Ended | 13 Months Ended |
|---|---|---|
Aug. 31, 2026 |
Aug. 31, 2026 |
|
| Class R5 | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Class R5 | |
| Average Annual Return, Percent | 20.45% | 23.29% |
| Russell 3000 Index [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Russell 3000 Index | |
| Average Annual Return, Percent | 20.10% | 22.84% |
| Bloomberg U.S. Aggregate Index [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |
| Average Annual Return, Percent | 1.89% | 0.77% |
| S&P Target Date To 2065+ Index [Member] | ||
| Average Annual Return [Line Items] | ||
| Line Graph and Table Measure Name | S&P Target Date To 2065+ Index | |
| Average Annual Return, Percent | 20.18% | 22.74% |