Shareholder Report, Average Annual Return (Details) 74200175300_Franklin Retirement Advantage Plus 2055 Fund_Class R6_TSR Annual {Class R6} |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2026 |
Jul. 31, 2026 |
|
| Class R6 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class R6 | ||
| Average Annual Return, Percent | 13.08% | 8.47% | 10.29% |
| Russell 3000 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Russell 3000 Index | ||
| Average Annual Return, Percent | 19.60% | 11.82% | 14.56% |
| 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 | 2.71% | (0.40%) | 1.35% |
| S&P Target Date To 2055 Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | S&P Target Date To 2055 Index | ||
| Average Annual Return, Percent | 20.47% | 9.75% | 11.01% |