Class A C G P R [Member] Annual Total Returns |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Class A C G P R | Putnam Government Money Market Fund | Class A Shares | |||||||||
| Prospectus [Line Items] | |||||||||
| Annual Return [Percent] | 3.93% | 4.86% | 4.65% | 1.26% | 0.01% | 0.21% | 1.65% | 1.31% | 0.30% |