Annual Total Returns - Prospectus Summary - Franklin Institutional U.S. Government Money Market Fund - Class A |
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 |
Dec. 31, 2016 |
|---|---|---|---|---|---|---|---|---|---|---|
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.08% | 4.94% | 4.75% | 1.34% | 0.01% | 0.26% | 1.86% | 1.47% | 0.50% | none |
| Annual Return [Percent] | 4.08% | 4.94% | 4.75% | 1.34% | 0.01% | 0.26% | 1.86% | 1.47% | 0.50% | none |