v3.26.1
S000062159 [Member] Annual Fund Operating Expenses - iShares ESG Aware U.S. Aggregate Bond ETF
Feb. 28, 2026
Prospectus [Line Items]  
Fee Waiver or Reimbursement over Assets, Date of Termination June 30, 2029
iShares ESG Aware U.S. Aggregate Bond ETF  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.10% [1]
Other Expenses (as a percentage of Assets): 0.00% [1]
Acquired Fund Fees and Expenses 0.00% [1]
Expenses (as a percentage of Assets) 0.10% [1]
Fee Waiver or Reimbursement 0.00% [1]
Net Expenses (as a percentage of Assets) 0.10% [1]
[1] Operating expenses paid by BFA under the Investment Advisory Agreement exclude Acquired Fund Fees and Expenses, if any.