v3.26.1
Investor A Institutional [Member] Expense Example - Investor A, Institutional - iShares MSCI EAFE International Index Fund
Dec. 31, 2025
USD ($)
Investor A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 35
Expense Example, with Redemption, 3 Years 109
Expense Example, with Redemption, 5 Years 191
Expense Example, with Redemption, 10 Years 431
Institutional  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 9
Expense Example, with Redemption, 3 Years 29
Expense Example, with Redemption, 5 Years 51
Expense Example, with Redemption, 10 Years $ 115