Shareholder Report, Line Graph (Details) 74200181000_Franklin Retirement Advantage 2035 Fund_Class R4_TSR Annual {Class R4} - USD ($) |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
Aug. 31, 2025 |
Aug. 31, 2024 |
Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2021 |
Aug. 31, 2020 |
Dec. 31, 2019 |
Aug. 31, 2026 |
|
| Class R4 | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Class R4 | |||||||
| Accumulated Value | $ 16,355 | $ 14,810 | $ 12,120 | $ 11,090 | $ 12,833 | $ 10,539 | $ 10,000 | $ 18,413 |
| Russell 3000 Index [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Russell 3000 Index | |||||||
| Accumulated Value | 21,164 | 18,270 | 14,484 | 12,621 | 14,554 | 10,939 | 10,000 | $ 25,419 |
| Bloomberg U.S. Aggregate Index [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||||||
| Accumulated Value | 10,329 | 10,015 | 9,334 | 9,447 | 10,676 | 10,685 | 10,000 | $ 10,524 |
| S&P Target Date To 2035 Index [Member] | ||||||||
| Account Value [Line Items] | ||||||||
| Line Graph and Table Measure Name | S&P Target Date To 2035 Index | |||||||
| Accumulated Value | $ 15,557 | $ 14,126 | $ 12,072 | $ 10,985 | $ 12,581 | $ 10,325 | $ 10,000 | $ 17,801 |