Shareholder Report, Line Graph (Details) 74200175300_Franklin Retirement Advantage Plus 2055 Fund_Class R3_TSR Annual {Class R3} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Jul. 31, 2025 |
Jul. 31, 2024 |
Jul. 31, 2023 |
Jul. 31, 2022 |
Jul. 31, 2021 |
Jul. 31, 2020 |
Jul. 31, 2019 |
Jul. 31, 2018 |
Jul. 31, 2017 |
Jul. 31, 2016 |
Jul. 31, 2026 |
|
| Class R3 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class R3 | ||||||||||
| Accumulated Value | $ 22,595 | $ 20,967 | $ 17,355 | $ 15,720 | $ 17,354 | $ 13,558 | $ 12,850 | $ 12,762 | $ 11,492 | $ 10,000 | $ 25,410 |
| Russell 3000 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 3000 Index | ||||||||||
| Accumulated Value | 32,551 | 28,138 | 23,240 | 20,631 | 22,268 | 16,052 | 14,470 | 13,517 | 11,614 | 10,000 | $ 38,932 |
| Bloomberg U.S. Aggregate Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | ||||||||||
| Accumulated Value | 11,130 | 10,766 | 10,243 | 10,600 | 11,664 | 11,746 | 10,666 | 9,869 | 9,949 | 10,000 | $ 11,431 |
| S&P Target Date To 2055 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P Target Date To 2055 Index | ||||||||||
| Accumulated Value | $ 23,596 | $ 21,019 | $ 18,213 | $ 16,291 | $ 17,854 | $ 13,585 | $ 13,047 | $ 12,672 | $ 11,438 | $ 10,000 | $ 28,426 |