Shareholder Report, Line Graph (Details) 74200175800_Franklin Retirement Advantage Plus 2065 Fund_Class R5_TSR Annual {Class R5} - USD ($) |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Jul. 31, 2025 |
Jul. 31, 2024 |
Jul. 31, 2023 |
Jul. 31, 2022 |
Jul. 31, 2021 |
Jan. 04, 2021 |
Jul. 31, 2026 |
|
| Class R5 | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | Class R5 | ||||||
| Accumulated Value | $ 15,332 | $ 14,115 | $ 11,514 | $ 10,314 | $ 11,360 | $ 10,000 | $ 17,450 |
| Russell 3000 Index [Member] | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | Russell 3000 Index | ||||||
| Accumulated Value | 17,111 | 14,791 | 12,217 | 10,845 | 11,706 | 10,000 | $ 20,466 |
| Bloomberg U.S. Aggregate Index [Member] | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||
| Accumulated Value | 9,494 | 9,184 | 8,738 | 9,043 | 9,950 | 10,000 | $ 9,752 |
| S&P Target Date To 2065+ Index [Member] | |||||||
| Account Value [Line Items] | |||||||
| Line Graph and Table Measure Name | S&P Target Date To 2065+ Index | ||||||
| Accumulated Value | $ 15,147 | $ 13,446 | $ 11,607 | $ 10,361 | $ 11,287 | $ 10,000 | $ 18,276 |