v3.26.1
S000091281 [Member] Investment Objectives and Goals - iShares S&P 500 3% Capped ETF
Mar. 31, 2026
Prospectus [Line Items]  
Risk/Return [Heading] iShares S&P 500 3% Capped ETFTOPC | NYSE Arca
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The iShares S&P 500 3% Capped ETF (the Fund) seeks to track the investment results of an index composed of the companies of the S&P 500, subject to a 3% company weight cap.