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 |
|||
| iShares Mortgage-Backed Securities Active ETF | iShares Mortgage-Backed Securities Active ETF | ||||||||||||
| Prospectus [Line Items] | ||||||||||||
| Annual Return [Percent] | [1] | 8.48% | 1.30% | 5.16% | (12.55%) | (1.14%) | 4.19% | 6.46% | 0.47% | 1.27% | 1.60% | |
| ||||||||||||