INSTITUTIONALINVESTOR Aand INVESTORC [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 |
Dec. 31, 2015 |
|
| Investor A, C and Institutional | BLACKROCK WEALTH LIQUID ENVIRONMENTALLY AWARE FUND | INVESTOR A | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.96% | 4.82% | 1.39% | 0.02% | 0.38% | 1.90% | 1.54% | 0.74% | 0.20% | 0.01% |