Investor A C Institutional and Class R [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 |
|
| Investor A, C, Institutional and Class R | BlackRock LifePath Dynamic 2060 Fund | Institutional Shares | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 21.08% | 17.07% | 22.30% | (18.64%) | 18.14% | 14.34% | 26.47% | (8.64%) |