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S000013931 [Member] Investment Objectives and Goals - iShares ESG MSCI KLD 400 ETF
Apr. 30, 2026
Prospectus [Line Items]  
Risk/Return [Heading] iShares ESG MSCI KLD 400 ETFDSI | NYSE Arca
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The iShares ESG MSCI KLD 400 ETF (the Fund) seeks to track the investment results of an index composed of U.S. companies that have positive environmental, social and governance characteristics as identified by the index provider.