v3.25.2
Annual Fund Operating Expenses - iSHARES LARGE CAP 10% TARGET BUFFER SEP ETF
Sep. 15, 2025
Prospectus [Line Items]  
Fee Waiver or Reimbursement over Assets, Date of Termination November 30, 2030
iShares Large Cap 10% Target Buffer Sep ETF  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.50% [1]
Distribution and Service (12b-1) Fees 0.00% [1]
Other Expenses (as a percentage of Assets): 0.00% [1],[2],[3]
Acquired Fund Fees and Expenses 0.03% [1],[2]
Expenses (as a percentage of Assets) 0.53% [1]
Fee Waiver or Reimbursement (0.03%) [1]
Net Expenses (as a percentage of Assets) 0.50% [1]
[1] Operating expenses paid by BFA under the Investment Advisory Agreement exclude Acquired Fund Fees and Expenses, if any.
[2] Based on estimated amounts for the current fiscal year.
[3] The amount rounded to 0.00%.