Shareholder Report, Line Graph (Details) 74200198200_Franklin Retirement Advantage 2070 Fund_Class R4_TSR Annual {Class R4} - USD ($) |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
May 31, 2026 |
Feb. 28, 2026 |
Nov. 30, 2025 |
Aug. 31, 2025 |
Aug. 01, 2025 |
Aug. 31, 2026 |
|
| Class R4 | ||||||
| Account Value [Line Items] | ||||||
| Line Graph and Table Measure Name | Class R4 | |||||
| Accumulated Value | $ 12,273 | $ 11,477 | $ 10,970 | $ 10,410 | $ 10,000 | $ 12,518 |
| Russell 3000 Index [Member] | ||||||
| Account Value [Line Items] | ||||||
| Line Graph and Table Measure Name | Russell 3000 Index | |||||
| Accumulated Value | 12,053 | 10,955 | 10,841 | 10,231 | 10,000 | $ 12,288 |
| Bloomberg U.S. Aggregate Index [Member] | ||||||
| Account Value [Line Items] | ||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||||
| Accumulated Value | 10,382 | 10,523 | 10,358 | 10,120 | 10,000 | $ 10,311 |
| 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 | $ 12,131 | $ 11,393 | $ 10,798 | $ 10,274 | $ 10,000 | $ 12,347 |