S000004318 [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 U.S. Basic Materials ETF | iShares U.S. Basic Materials ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 20.41% | (4.53%) | 12.73% | (9.07%) | 25.52% | 17.83% | 19.25% | (16.49%) | 24.74% | 19.74% |