S000004346 [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 1000 Growth ETF | iShares Russell 1000 Growth ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 18.34% | 33.11% | 42.49% | (29.26%) | 27.37% | 38.21% | 36.08% | (1.68%) | 29.96% | 6.92% |