State Street SPDR Portfolio Short Term Treasury Index ETF 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 |
Dec. 31, 2016 |
|
| State Street SPDR Portfolio Short Term Treasury Index ETF | State Street SPDR Portfolio Short Term Treasury Index ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 5.15% | 4.07% | 4.26% | (3.89%) | (0.64%) | 3.16% | 3.54% | 1.07% | 0.59% | 0.91% |