v3.26.1
S000069532 [Member] Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
iShares ESG Select Screened S&P 500 ETF | iShares ESG Select Screened S&P 500 ETF          
Prospectus [Line Items]          
Annual Return [Percent] 17.40% 25.86% 29.80% (21.46%) 29.29%