S000004434 [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 Morningstar Small-Cap Growth ETF | iShares Morningstar Small-Cap Growth ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 13.09% | 13.44% | 22.84% | (26.65%) | (1.32%) | 43.28% | 27.41% | (5.79%) | 23.48% | 9.48% |