S000004349 [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 Select U.S. REIT ETF | iShares Select U.S. REIT ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 1.94% | 5.30% | 10.38% | (26.10%) | 43.99% | (5.42%) | 25.48% | (2.45%) | 4.96% | 4.57% |