S000004322 [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. Financial Services ETF | iShares U.S. Financial Services ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 20.01% | 31.95% | 15.96% | (16.73%) | 30.35% | 0.89% | 37.67% | (12.44%) | 24.42% | 19.88% |