v3.25.2
Shareholder Report, Holdings (Details)
Jul. 31, 2025
C000069397 | iShares Core Total USD Bond Market ETF  
Holdings [Line Items]  
Percent of Total Investments 57.30%
C000069397 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Total Investments 19.20%
C000069397 | iShares Core International Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 10.10%
C000069397 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 8.40%
C000069397 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 3.40%
C000069397 | iShares Core S&P Mid-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000069397 | iShares Core S&P Small-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 0.50%
C000069397 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 57.30%
C000069397 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 20.80%
C000069397 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 11.80%
C000069397 | International Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 10.10%
C000069398 | iShares Core Total USD Bond Market ETF  
Holdings [Line Items]  
Percent of Total Investments 48.50%
C000069398 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Total Investments 25.40%
C000069398 | iShares Core International Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 8.50%
C000069398 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 11.10%
C000069398 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000069398 | iShares Core S&P Mid-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000069398 | iShares Core S&P Small-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000069398 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 48.50%
C000069398 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 27.40%
C000069398 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 15.60%
C000069398 | International Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 8.50%
C000069399 | iShares Core Total USD Bond Market ETF  
Holdings [Line Items]  
Percent of Total Investments 31.50%
C000069399 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Total Investments 37.20%
C000069399 | iShares Core International Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 5.60%
C000069399 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 16.20%
C000069399 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 6.60%
C000069399 | iShares Core S&P Mid-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000069399 | iShares Core S&P Small-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 0.90%
C000069399 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 31.50%
C000069399 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 40.10%
C000069399 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 22.80%
C000069399 | International Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 5.60%
C000069400 | iShares Core Total USD Bond Market ETF  
Holdings [Line Items]  
Percent of Total Investments 15.40%
C000069400 | iShares Core S&P 500 ETF  
Holdings [Line Items]  
Percent of Total Investments 48.30%
C000069400 | iShares Core International Aggregate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 2.70%
C000069400 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 21.10%
C000069400 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 8.60%
C000069400 | iShares Core S&P Mid-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 2.70%
C000069400 | iShares Core S&P Small-Cap ETF  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000069400 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 15.40%
C000069400 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 52.20%
C000069400 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 29.70%
C000069400 | International Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 2.70%
C000112640 | iShares Preferred and Income Securities ETF  
Holdings [Line Items]  
Percent of Total Investments 15.40%
C000112640 | iShares Broad USD High Yield Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 15.10%
C000112640 | iShares Core 1-5 Year USD Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 15.00%
C000112640 | iShares Floating Rate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 14.90%
C000112640 | iShares Latin America 40 ETF  
Holdings [Line Items]  
Percent of Total Investments 14.50%
C000112640 | iShares J.P. Morgan EM Local Currency Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 5.10%
C000112640 | iShares J.P. Morgan EM Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000112640 | iShares MBS ETF  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000112640 | iShares Global REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000112640 | iShares MSCI EAFE Value ETF  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000112640 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 35.10%
C000112640 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 15.40%
C000112640 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 24.50%
C000112640 | International Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 25.00%
C000231047 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000231047 | Chevron Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000231047 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000231047 | Cisco Systems, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000231047 | Public Service Enterprise Group, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000231047 | Motorola Solutions, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000231047 | T-Mobile U.S., Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000231047 | Cencora, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000231047 | Mastercard, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000231047 | Northrop Grumman Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000231047 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 26.60%
C000231047 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 14.20%
C000231047 | Financials  
Holdings [Line Items]  
Percent of Total Investments 12.10%
C000231047 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 11.10%
C000231047 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 10.40%
C000231047 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 6.10%
C000231047 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.70%
C000231047 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000231047 | Energy  
Holdings [Line Items]  
Percent of Total Investments 3.80%
C000231047 | Real Estate  
Holdings [Line Items]  
Percent of Total Investments 2.60%
C000231047 | Materials  
Holdings [Line Items]  
Percent of Total Investments 2.50%
C000099141 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000099141 | Cisco Systems, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000099141 | Motorola Solutions, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000099141 | T-Mobile U.S., Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000099141 | Exxon Mobil Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000099141 | Southern Co. (The)  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000099141 | Duke Energy Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.60%
C000099141 | McKesson Corp.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000099141 | Waste Management, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000099141 | Waste Connections, Inc.  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000099141 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 27.00%
C000099141 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 14.40%
C000099141 | Financials  
Holdings [Line Items]  
Percent of Total Investments 15.00%
C000099141 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 7.90%
C000099141 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 10.50%
C000099141 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 6.30%
C000099141 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 7.70%
C000099141 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.60%
C000099141 | Energy  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000099141 | Real Estate  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000099141 | Materials  
Holdings [Line Items]  
Percent of Total Investments 1.30%
C000125223 | Broadcom, Inc.  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000125223 | Meta Platforms, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 5.50%
C000125223 | JPMorgan Chase & Co.  
Holdings [Line Items]  
Percent of Total Investments 4.80%
C000125223 | Netflix, Inc.  
Holdings [Line Items]  
Percent of Total Investments 4.40%
C000125223 | Walmart, Inc.  
Holdings [Line Items]  
Percent of Total Investments 4.30%
C000125223 | Berkshire Hathaway, Inc.Class B  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000125223 | Visa, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 4.00%
C000125223 | Palantir Technologies, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 4.00%
C000125223 | Tesla, Inc.  
Holdings [Line Items]  
Percent of Total Investments 3.80%
C000125223 | Philip Morris International, Inc.  
Holdings [Line Items]  
Percent of Total Investments 2.80%
C000125223 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 18.00%
C000125223 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 6.30%
C000125223 | Financials  
Holdings [Line Items]  
Percent of Total Investments 23.00%
C000125223 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 11.00%
C000125223 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 12.20%
C000125223 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 9.40%
C000125223 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 2.60%
C000125223 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 13.50%
C000125223 | Energy  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000125223 | Real Estate  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000128677 | Microsoft Corp.  
Holdings [Line Items]  
Percent of Total Investments 6.90%
C000128677 | NVIDIA Corp.  
Holdings [Line Items]  
Percent of Total Investments 7.80%
C000128677 | Mastercard, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000128677 | Meta Platforms, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 3.80%
C000128677 | Netflix, Inc.  
Holdings [Line Items]  
Percent of Total Investments 2.50%
C000128677 | Visa, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 4.10%
C000128677 | Apple, Inc.  
Holdings [Line Items]  
Percent of Total Investments 5.90%
C000128677 | Eli Lilly & Co.  
Holdings [Line Items]  
Percent of Total Investments 3.40%
C000128677 | TJX Companies, Inc. (The)  
Holdings [Line Items]  
Percent of Total Investments 2.30%
C000128677 | Alphabet, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000128677 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 33.70%
C000128677 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.20%
C000128677 | Financials  
Holdings [Line Items]  
Percent of Total Investments 13.20%
C000128677 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 8.80%
C000128677 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.20%
C000128677 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 10.30%
C000128677 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 2.40%
C000128677 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 10.30%
C000128677 | Energy  
Holdings [Line Items]  
Percent of Total Investments 2.80%
C000128677 | Real Estate  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000128677 | Materials  
Holdings [Line Items]  
Percent of Total Investments 1.90%
C000124960 | Chevron Corp.  
Holdings [Line Items]  
Percent of Total Investments 0.40%
C000124960 | Synopsys, Inc.  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | ROBLOX Corp.Class A  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Western Digital Corp.  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Reddit, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Robinhood Markets, Inc.Class A  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Seagate Technology Holdings PLC  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Advanced Micro Devices, Inc.  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Warner Bros Discovery, Inc.Series A  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Estee Lauder Companies, Inc. (The)Class A  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000124960 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 16.20%
C000124960 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 11.10%
C000124960 | Financials  
Holdings [Line Items]  
Percent of Total Investments 15.40%
C000124960 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 16.30%
C000124960 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 6.50%
C000124960 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 9.30%
C000124960 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.60%
C000124960 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000124960 | Energy  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000124960 | Real Estate  
Holdings [Line Items]  
Percent of Total Investments 6.30%
C000124960 | Materials  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000124961 | Cisco Systems, Inc.  
Holdings [Line Items]  
Percent of Total Investments 7.00%
C000124961 | Intel Corp.  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000124961 | General Motors Co.  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000124961 | Micron Technology, Inc.  
Holdings [Line Items]  
Percent of Total Investments 3.30%
C000124961 | AT&T, Inc.  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000124961 | Applied Materials, Inc.  
Holdings [Line Items]  
Percent of Total Investments 2.90%
C000124961 | Bank of America Corp.  
Holdings [Line Items]  
Percent of Total Investments 2.60%
C000124961 | Verizon Communications, Inc.  
Holdings [Line Items]  
Percent of Total Investments 2.40%
C000124961 | Citigroup, Inc.  
Holdings [Line Items]  
Percent of Total Investments 2.30%
C000124961 | Ford Motor Co.  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000124961 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 32.50%
C000124961 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 8.50%
C000124961 | Financials  
Holdings [Line Items]  
Percent of Total Investments 14.70%
C000124961 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 9.20%
C000124961 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.40%
C000124961 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 11.10%
C000124961 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000124961 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 9.00%
C000124961 | Energy  
Holdings [Line Items]  
Percent of Total Investments 3.10%
C000124961 | Real Estate  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000124961 | Materials  
Holdings [Line Items]  
Percent of Total Investments 2.10%
C000245481 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 9.60%
C000245481 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000245481 | iShares MBS ETF  
Holdings [Line Items]  
Percent of Total Investments 13.00%
C000245481 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 24.20%
C000245481 | iShares U.S. Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 23.10%
C000245481 | iShares 0-5 Year TIPS Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 10.50%
C000245481 | iShares 1-5 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000245481 | iShares 10-20 Year Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.50%
C000245481 | iShares 5-10 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000245481 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 2.10%
C000245481 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 59.70%
C000245481 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 25.50%
C000245481 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 14.80%
C000245484 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 12.80%
C000245484 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 5.20%
C000245484 | iShares MBS ETF  
Holdings [Line Items]  
Percent of Total Investments 10.30%
C000245484 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 30.50%
C000245484 | iShares U.S. Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 13.70%
C000245484 | iShares 0-5 Year TIPS Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 8.50%
C000245484 | iShares 1-5 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 5.20%
C000245484 | iShares 10-20 Year Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000245484 | iShares 5-10 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.40%
C000245484 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 2.60%
C000245484 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 47.60%
C000245484 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 32.80%
C000245484 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 19.60%
C000245485 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 15.90%
C000245485 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 6.50%
C000245485 | iShares MBS ETF  
Holdings [Line Items]  
Percent of Total Investments 9.30%
C000245485 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 36.50%
C000245485 | iShares U.S. Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 13.70%
C000245485 | iShares 1-5 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 4.60%
C000245485 | iShares 5-10 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000245485 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.00%
C000245485 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 2.70%
C000245485 | iShares Global Infrastructure ETF  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000245485 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 35.50%
C000245485 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 40.30%
C000245485 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 24.20%
C000245486 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 18.90%
C000245486 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 7.70%
C000245486 | iShares MBS ETF  
Holdings [Line Items]  
Percent of Total Investments 6.20%
C000245486 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 42.20%
C000245486 | iShares U.S. Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 8.50%
C000245486 | iShares 1-5 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 2.60%
C000245486 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000245486 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 3.40%
C000245486 | iShares Global Infrastructure ETF  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000245486 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000245486 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 24.10%
C000245486 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 47.30%
C000245486 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 28.60%
C000245487 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 22.20%
C000245487 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 9.10%
C000245487 | iShares MBS ETF  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000245487 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 47.90%
C000245487 | iShares U.S. Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.80%
C000245487 | iShares 1-5 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000245487 | iShares 10-20 Year Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000245487 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000245487 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 4.10%
C000245487 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 2.60%
C000245487 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 13.60%
C000245487 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 54.60%
C000245487 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 31.80%
C000245488 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 25.00%
C000245488 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 10.30%
C000245488 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 53.20%
C000245488 | iShares U.S. Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000245488 | iShares 1-5 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000245488 | iShares 10-20 Year Treasury Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 0.50%
C000245488 | iShares 5-10 Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 0.40%
C000245488 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000245488 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 2.50%
C000245488 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 3.40%
C000245488 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 5.60%
C000245488 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 59.10%
C000245488 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 35.30%
C000245489 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 26.30%
C000245489 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 10.90%
C000245489 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 56.00%
C000245489 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000245489 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 1.30%
C000245489 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 3.80%
C000245489 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 1.70%
C000245489 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 61.10%
C000245489 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 37.20%
C000245490 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 26.50%
C000245490 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 10.90%
C000245490 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 56.60%
C000245490 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000245490 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000245490 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000245490 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000245490 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 61.60%
C000245490 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 37.40%
C000245482 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 26.50%
C000245482 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 10.90%
C000245482 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 56.60%
C000245482 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000245482 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000245482 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000245482 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000245482 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 61.60%
C000245482 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 37.40%
C000254668 | iShares Core MSCI International Developed Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 26.50%
C000254668 | iShares Core MSCI Emerging Markets ETF  
Holdings [Line Items]  
Percent of Total Investments 10.90%
C000254668 | iShares Russell 1000 ETF  
Holdings [Line Items]  
Percent of Total Investments 56.60%
C000254668 | iShares 10+ Year Investment Grade Corporate Bond ETF  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000254668 | iShares Core U.S. REIT ETF  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000254668 | iShares Russell 2000 ETF  
Holdings [Line Items]  
Percent of Total Investments 3.90%
C000254668 | Domestic Fixed Income  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000254668 | Domestic Equity  
Holdings [Line Items]  
Percent of Total Investments 61.60%
C000254668 | International Equity  
Holdings [Line Items]  
Percent of Total Investments 37.40%