S000004354 [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 Semiconductor ETF | iShares Semiconductor ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 40.71% | 12.97% | 66.90% | (35.03%) | 44.00% | 52.93% | 62.38% | (6.47%) | 39.83% | 38.41% |