S000004342 [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 |
Dec. 31, 2016 |
|
| iShares Russell 2000 Value ETF | iShares Russell 2000 Value ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 12.41% | 7.74% | 14.42% | (14.67%) | 27.96% | 4.50% | 22.17% | (12.94%) | 7.73% | 31.64% |