S000057342 [Member] Expense Example - iShares Investment Grade Systematic Bond ETF - iShares Investment Grade Systematic Bond ETF	Feb. 28, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 18
Expense Example, with Redemption, 3 Years	58
Expense Example, with Redemption, 5 Years	101
Expense Example, with Redemption, 10 Years	$ 230

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