v3.25.4
S000000780 [Member] Expense Example, No Redemption - Putnam Dynamic Asset Allocation Growth Fund - Class C
Sep. 30, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 176
Expense Example, No Redemption, 3 Years 546
Expense Example, No Redemption, 5 Years 940
Expense Example, No Redemption, 10 Years $ 1,844