S000004341 [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 3000 ETF | iShares Russell 3000 ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.92% | 23.58% | 25.80% | (19.33%) | 25.45% | 20.66% | 30.78% | (5.39%) | 20.95% | 12.55% |