S000009421 [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. Insurance ETF | iShares U.S. Insurance ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 9.51% | 28.18% | 11.22% | 11.43% | 26.70% | (2.87%) | 25.50% | (11.05%) | 14.11% | 18.36% |