S000093657 [Member] Expense Example, No Redemption - Putnam Retirement Advantage 2070 Fund - Class C |
Aug. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 158 |
| Expense Example, No Redemption, 3 Years | $ 3,087 |