iShares Nasdaq 100 ETF i Shares Nasdaq100 ETF [Member] S000105781 [Member] C000276566 [Member] Market Risks [Member] Index Related Risk [Member] Large Capitalization Companies Risk [Member] Asset Class Risk [Member] Assets Under Management AUM Risk [Member] Authorized Participant Concentration Risk [Member] Concentration Risk [Member] Consumer Goods and Services Companies Risk [Member] Issuer Risk [Member] Management Risk [Member] Market Trading Risk [Member] Operational and Technology Risks [Member] Risk of Investing in the U S [Member] Securities Lending Risk [Member] Small Fund Risk [Member] Technology Companies Risk [Member] Tracking Error Risk [Member] Equity Securities Risk [Member]