Shareholder Report, Line Graph (Details) 74200174500_Franklin Retirement Advantage Plus 2045 Fund_Class R6_TSR Annual {Class R6} - 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 R6 | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class R6 | ||||||||||
| Accumulated Value | $ 21,806 | $ 20,271 | $ 16,901 | $ 15,441 | $ 16,825 | $ 13,511 | $ 12,855 | $ 12,683 | $ 11,452 | $ 10,000 | $ 24,426 |
| 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 2045 Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P Target Date To 2045 Index | ||||||||||
| Accumulated Value | $ 22,667 | $ 20,333 | $ 17,723 | $ 15,956 | $ 17,459 | $ 13,456 | $ 12,889 | $ 12,485 | $ 11,320 | $ 10,000 | $ 26,962 |