v3.26.1
S000061314 [Member] Average Annual Total Returns
12 Months Ended 60 Months Ended 93 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
MSCI USA Index (Returns do not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.75% 13.87% 15.09%
NYSE FactSet U.S. Infrastructure Index (Returns do not reflect deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 16.46% 14.40% 12.59%
iShares U.S. Infrastructure ETF      
Prospectus [Line Items]      
Average Annual Return, Percent 16.06% 14.09% 12.24%
Performance Inception Date     Apr. 03, 2018
iShares U.S. Infrastructure ETF | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 15.52% 13.57% 11.66%
iShares U.S. Infrastructure ETF | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 9.84% 11.22% 9.85%