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S000004309 [Member] Investment Objectives and Goals - iShares S&P Mid-Cap 400 Value ETF
Mar. 31, 2026
Prospectus [Line Items]  
Risk/Return [Heading] iShares S&P Mid-Cap 400 Value ETFIJJ | NYSE Arca
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The iShares S&P Mid-Cap 400 Value ETF (the Fund) seeks to track the investment results of an index composed of mid-capitalization U.S. equities that exhibit value characteristics.