Class K [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 K | iShares Short-Term TIPS Bond Index Fund | Class K | |||||||||
| Prospectus [Line Items] | |||||||||
| Annual Return [Percent] | 6.06% | 4.77% | 4.51% | (2.86%) | 5.19% | 4.87% | 4.72% | 0.60% | 0.89% |