v3.26.1
S000075811 [Member] Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
iShares Blockchain and Tech ETF | iShares Blockchain and Tech ETF      
Prospectus [Line Items]      
Annual Return [Percent] 27.78% 18.06% 201.77%