v3.25.2
Annual Total Returns
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
iShares U.S. Thematic Rotation Active ETF | iShares U.S. Thematic Rotation Active ETF    
Prospectus [Line Items]    
Annual Return [Percent] [1] 24.35% (17.79%)
[1] The Fund’s year‑to‑date return as of September 30, 2024 was 28.02%.