S000004333 [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. Telecommunications ETF | iShares U.S. Telecommunications ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 29.28% | 20.54% | 3.88% | (30.27%) | 11.68% | 4.08% | 16.26% | (8.55%) | (11.59%) | 22.14% |