iShares A.I. Innovation and Tech Active ETF S000086268 [Member] S&P 500 Index (Index returns do not reflect deductions for fees, expenses or taxes) SP 500 Index [Member] Morningstar Global Artificial Intelligence Select Index (Net) (Returns do not reflect deductions for fees, expenses, or taxes, except for withholding taxes on reinvested dividends for net indexes) Morningstar Global Artificial Intelligence Select Index [Member] C000251727 [Member] Technology Companies Risk [Member] Equity Securities Risk [Member] Non Diversification Risk [Member] Authorized Participant Concentration Risk [Member] Biotechnology Industry Risk [Member] Concentration Risk [Member] Convertible Securities Risk [Member] Depositary Receipts Risk [Member] Derivatives Risks [Member] Emerging Markets Risk [Member] Financial Services Industry Risk [Member] Foreign Securities Risk [Member] High Portfolio Turnover Risk [Member] Industrials Sector Risk [Member] Issuer Risk [Member] Large Shareholder and Large Scale Redemption Risk [Member] Leverage Risk [Member] Market Risk and Selection Risk [Member] Market Trading Risk [Member] Master Limited Partnerships Risk [Member] New Issues Risk [Member] Operational and Technology Risks [Member] Preferred Securities Risk [Member] REIT Investment Risk [Member] Risk of Investing in the United States [Member] Small and Mid Capitalization Company Risk [Member] Telecommunications Risk [Member] Tokyo Stock Exchange Issuer Limitation Risk [Member] Valuation Risk [Member] Warrants Risk [Member] Artificial Intelligence Technology Risk [Member]