| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | iShares Trust |
| Entity Central Index Key | 0001100663 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | iShares Trust |
| Entity Central Index Key | 0001100663 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000171898 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2024 Term Muni Bond ETF |
| Trading Symbol | IBMM |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2024 Term Muni Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2024 Term Muni Bond ETF $18 0.18% |
| Expenses Paid, Amount | $ 18 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 3.48%. For the same period, the S&P Municipal Bond Index returned 9.52% and the S&P AMT-Free Municipal Series Dec 2024 Index™ returned 3.79%. What contributed to performance? Municipal bonds gained during the reporting period, supported by an environment of slowing pricing pressures, delayed rate cuts, and steady growth in the United States. Disappointing labor data sparked a bond rally and helped to move the U.S. Federal Reserve off the sidelines, as it cut short-term rates by 50 basis points in September. During the reporting period, municipal investment grade bonds, particularly those rated AA, contributed the most to the Fund’s return, as the continued strength of the U.S. economy helped to keep municipal default rates low. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund S&P Municipal Bond Index S&P AMT-Free Municipal Series Dec 2024 Index™ Mar 18 $10,012 $10,030 $10,008 Apr 18 $9,964 $9,990 $9,944 May 18 $10,106 $10,099 $10,086 Jun 18 $10,120 $10,108 $10,100 Jul 18 $10,171 $10,132 $10,149 Aug 18 $10,174 $10,146 $10,151 Sep 18 $10,103 $10,086 $10,084 Oct 18 $10,070 $10,024 $10,052 Nov 18 $10,187 $10,133 $10,166 Dec 18 $10,320 $10,251 $10,290 Jan 19 $10,437 $10,327 $10,408 Feb 19 $10,492 $10,379 $10,459 Mar 19 $10,567 $10,527 $10,541 Apr 19 $10,567 $10,561 $10,542 May 19 $10,699 $10,702 $10,674 Jun 19 $10,752 $10,746 $10,730 Jul 19 $10,867 $10,830 $10,841 Aug 19 $10,912 $10,980 $10,893 Sep 19 $10,820 $10,904 $10,804 Oct 19 $10,866 $10,920 $10,855 Nov 19 $10,884 $10,937 $10,871 Dec 19 $10,921 $10,971 $10,911 Jan 20 $11,045 $11,147 $11,038 Feb 20 $11,092 $11,277 $11,088 Mar 20 $10,873 $10,945 $10,858 Apr 20 $10,862 $10,824 $10,842 May 20 $11,190 $11,144 $11,163 Jun 20 $11,211 $11,210 $11,188 Jul 20 $11,303 $11,362 $11,288 Aug 20 $11,290 $11,329 $11,278 Sep 20 $11,297 $11,330 $11,286 Oct 20 $11,274 $11,311 $11,269 Nov 20 $11,309 $11,448 $11,305 Dec 20 $11,328 $11,505 $11,328 Jan 21 $11,353 $11,559 $11,359 Feb 21 $11,273 $11,397 $11,289 Mar 21 $11,303 $11,458 $11,320 Apr 21 $11,341 $11,546 $11,357 May 21 $11,333 $11,586 $11,360 Jun 21 $11,337 $11,611 $11,360 Jul 21 $11,374 $11,690 $11,403 Aug 21 $11,369 $11,657 $11,397 Sep 21 $11,339 $11,580 $11,366 Oct 21 $11,322 $11,570 $11,358 Nov 21 $11,325 $11,651 $11,359 Dec 21 $11,324 $11,666 $11,358 Jan 22 $11,151 $11,389 $11,189 Feb 22 $11,120 $11,333 $11,155 Mar 22 $10,969 $11,030 $11,008 Apr 22 $10,880 $10,740 $10,920 May 22 $10,993 $10,896 $11,035 Jun 22 $10,992 $10,718 $11,033 Jul 22 $11,079 $10,983 $11,125 Aug 22 $10,953 $10,731 $11,001 Sep 22 $10,831 $10,362 $10,878 Oct 22 $10,846 $10,298 $10,895 Nov 22 $10,984 $10,767 $11,035 Dec 22 $10,978 $10,772 $11,032 Jan 23 $11,066 $11,063 $11,123 Feb 23 $10,976 $10,810 $11,031 Mar 23 $11,077 $11,042 $11,138 Apr 23 $11,038 $11,021 $11,103 May 23 $11,038 $10,935 $11,105 Jun 23 $11,085 $11,025 $11,153 Jul 23 $11,101 $11,052 $11,173 Aug 23 $11,120 $10,929 $11,194 Sep 23 $11,106 $10,641 $11,183 Oct 23 $11,141 $10,529 $11,220 Nov 23 $11,219 $11,142 $11,297 Dec 23 $11,259 $11,399 $11,341 Jan 24 $11,278 $11,374 $11,363 Feb 24 $11,297 $11,375 $11,385 Mar 24 $11,310 $11,365 $11,408 Apr 24 $11,340 $11,244 $11,439 May 24 $11,372 $11,208 $11,476 Jun 24 $11,407 $11,383 $11,512 Jul 24 $11,444 $11,479 $11,548 Aug 24 $11,472 $11,572 $11,581 Sep 24 $11,499 $11,685 $11,610 Oct 24 $11,529 $11,531 $11,646 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.48 % 1.19 % 2.17 % S&P Municipal Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.52 1.09 2.18 S&P AMT-Free Municipal Series Dec 2024 Index™ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.79 1.42 2.33 |
| Performance Inception Date | Mar. 20, 2018 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 391,768,694 |
| Holdings Count | Holding | 373 |
| Advisory Fees Paid, Amount | $ 832,653 |
| InvestmentCompanyPortfolioTurnover | 22% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $391,768,694 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 373 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $832,653 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22% |
| Holdings [Text Block] | Credit quality allocation Ten largest states S&P Credit Rating Footnote Reference Percent of Net Assets AAA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.7 % AA+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 44.0 AA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.6 AA- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.6 A+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 A- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.2 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.9 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ (6.0 ) State Footnote Reference Percent of Net Assets New York ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.7 % California ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.8 Pennsylvania ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.6 Massachusetts ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.3 Florida ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.0 Washington ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.5 Ohio ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.3 Connecticut ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 Rhode Island ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 Colorado ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by S&P Global Ratings, a widely used independent, nationally recognized statistical rating organization. S&P credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of BBB or higher. Below investment grade ratings are credit ratings of BB or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000204675 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2025 Term Muni Bond ETF |
| Trading Symbol | IBMN |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2025 Term Muni Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2025 Term Muni Bond ETF $18 0.18% |
| Expenses Paid, Amount | $ 18 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 4.09%. For the same period, the S&P Municipal Bond Index returned 9.52% and the S&P AMT-Free Municipal Series Dec 2025 Index™ returned 4.35%. What contributed to performance? Municipal bonds gained during the reporting period, supported by an environment of slowing pricing pressures, delayed rate cuts, and steady growth in the United States. Disappointing labor data sparked a bond rally and helped to move the U.S. Federal Reserve off the sidelines, as it cut short-term rates by 50 basis points in September. During the reporting period, municipal investment grade bonds, particularly those rated AA, contributed the most to the Fund’s return, as the continued strength of the U.S. economy helped to keep municipal default rates low. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund S&P Municipal Bond Index S&P AMT-Free Municipal Series Dec 2025 Index™ Nov 18 $10,172 $10,094 $10,114 Dec 18 $10,331 $10,211 $10,249 Jan 19 $10,492 $10,288 $10,386 Feb 19 $10,563 $10,339 $10,446 Mar 19 $10,662 $10,487 $10,547 Apr 19 $10,675 $10,521 $10,561 May 19 $10,828 $10,661 $10,718 Jun 19 $10,873 $10,705 $10,763 Jul 19 $10,994 $10,788 $10,883 Aug 19 $11,090 $10,938 $10,981 Sep 19 $10,973 $10,863 $10,866 Oct 19 $11,022 $10,878 $10,915 Nov 19 $11,036 $10,895 $10,929 Dec 19 $11,076 $10,929 $10,971 Jan 20 $11,251 $11,105 $11,146 Feb 20 $11,309 $11,233 $11,207 Mar 20 $11,036 $10,903 $10,918 Apr 20 $11,009 $10,783 $10,875 May 20 $11,398 $11,102 $11,251 Jun 20 $11,418 $11,167 $11,279 Jul 20 $11,549 $11,318 $11,413 Aug 20 $11,531 $11,286 $11,404 Sep 20 $11,541 $11,287 $11,414 Oct 20 $11,521 $11,268 $11,401 Nov 20 $11,583 $11,404 $11,460 Dec 20 $11,601 $11,461 $11,490 Jan 21 $11,626 $11,514 $11,520 Feb 21 $11,485 $11,353 $11,389 Mar 21 $11,522 $11,414 $11,427 Apr 21 $11,575 $11,502 $11,483 May 21 $11,566 $11,542 $11,485 Jun 21 $11,572 $11,567 $11,491 Jul 21 $11,633 $11,645 $11,556 Aug 21 $11,623 $11,613 $11,546 Sep 21 $11,567 $11,535 $11,495 Oct 21 $11,548 $11,526 $11,480 Nov 21 $11,562 $11,606 $11,494 Dec 21 $11,562 $11,621 $11,497 Jan 22 $11,313 $11,345 $11,252 Feb 22 $11,273 $11,289 $11,208 Mar 22 $11,064 $10,988 $11,005 Apr 22 $10,922 $10,698 $10,866 May 22 $11,068 $10,854 $11,010 Jun 22 $11,052 $10,677 $10,994 Jul 22 $11,200 $10,941 $11,142 Aug 22 $11,018 $10,689 $10,966 Sep 22 $10,817 $10,323 $10,766 Oct 22 $10,820 $10,258 $10,771 Nov 22 $11,027 $10,725 $10,976 Dec 22 $11,047 $10,730 $10,998 Jan 23 $11,176 $11,021 $11,127 Feb 23 $10,998 $10,768 $10,951 Mar 23 $11,165 $10,999 $11,121 Apr 23 $11,106 $10,979 $11,068 May 23 $11,054 $10,893 $11,019 Jun 23 $11,107 $10,983 $11,072 Jul 23 $11,122 $11,010 $11,091 Aug 23 $11,119 $10,887 $11,091 Sep 23 $11,054 $10,600 $11,028 Oct 23 $11,081 $10,488 $11,055 Nov 23 $11,250 $11,100 $11,224 Dec 23 $11,323 $11,355 $11,300 Jan 24 $11,324 $11,330 $11,303 Feb 24 $11,330 $11,331 $11,309 Mar 24 $11,322 $11,322 $11,309 Apr 24 $11,325 $11,201 $11,310 May 24 $11,351 $11,165 $11,341 Jun 24 $11,404 $11,339 $11,397 Jul 24 $11,469 $11,435 $11,463 Aug 24 $11,521 $11,528 $11,517 Sep 24 $11,537 $11,640 $11,534 Oct 24 $11,534 $11,487 $11,536 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.09 % 0.91 % 2.42 % S&P Municipal Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.52 1.09 2.35 S&P AMT-Free Municipal Series Dec 2025 Index™ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.35 1.11 2.42 |
| Performance Inception Date | Nov. 13, 2018 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 487,361,804 |
| Holdings Count | Holding | 1,332 |
| Advisory Fees Paid, Amount | $ 952,346 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $487,361,804 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,332 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $952,346 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation Ten largest states S&P Credit Rating Footnote Reference Percent of Net Assets AAA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.4 % AA+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.9 AA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.5 AA- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.2 A+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.6 A- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.1 BBB ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.8 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 State Footnote Reference Percent of Net Assets California ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.1 % Texas ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.7 New York ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.5 Washington ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.7 Illinois ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.8 Virginia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.8 Massachusetts ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Ohio ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Pennsylvania ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Georgia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by S&P Global Ratings, a widely used independent, nationally recognized statistical rating organization. S&P credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of BBB or higher. Below investment grade ratings are credit ratings of BB or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000204676 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2026 Term Muni Bond ETF |
| Trading Symbol | IBMO |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2026 Term Muni Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2026 Term Muni Bond ETF $18 0.18% |
| Expenses Paid, Amount | $ 18 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 5.04%. For the same period, the S&P Municipal Bond Index returned 9.52% and the S&P AMT-Free Municipal Series Dec 2026 Index™ returned 5.38%. What contributed to performance? Municipal bonds gained during the reporting period, supported by an environment of slowing pricing pressures, delayed rate cuts, and steady growth in the United States. Disappointing labor data sparked a bond rally and helped to move the U.S. Federal Reserve off the sidelines, as it cut short-term rates by 50 basis points in September. During the reporting period, municipal investment grade bonds, particularly those rated AA, contributed the most to the Fund’s return, as the continued strength of the U.S. economy helped to keep municipal default rates low. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund S&P Municipal Bond Index S&P AMT-Free Municipal Series Callable-Adjusted Dec 2026 Index™ Apr 19 $10,052 $10,044 $10,041 May 19 $10,228 $10,178 $10,208 Jun 19 $10,273 $10,220 $10,251 Jul 19 $10,373 $10,300 $10,352 Aug 19 $10,535 $10,443 $10,506 Sep 19 $10,414 $10,370 $10,391 Oct 19 $10,428 $10,386 $10,407 Nov 19 $10,443 $10,402 $10,421 Dec 19 $10,478 $10,434 $10,461 Jan 20 $10,684 $10,602 $10,662 Feb 20 $10,780 $10,725 $10,760 Mar 20 $10,459 $10,409 $10,420 Apr 20 $10,414 $10,294 $10,351 May 20 $10,787 $10,599 $10,717 Jun 20 $10,810 $10,661 $10,755 Jul 20 $10,959 $10,806 $10,914 Aug 20 $10,940 $10,775 $10,901 Sep 20 $10,953 $10,776 $10,912 Oct 20 $10,928 $10,758 $10,891 Nov 20 $11,017 $10,887 $10,989 Dec 20 $11,051 $10,942 $11,032 Jan 21 $11,079 $10,993 $11,073 Feb 21 $10,914 $10,839 $10,913 Mar 21 $10,954 $10,897 $10,961 Apr 21 $11,017 $10,981 $11,026 May 21 $11,015 $11,019 $11,036 Jun 21 $11,024 $11,043 $11,046 Jul 21 $11,099 $11,118 $11,123 Aug 21 $11,079 $11,087 $11,107 Sep 21 $11,011 $11,013 $11,039 Oct 21 $10,987 $11,004 $11,021 Nov 21 $11,017 $11,080 $11,052 Dec 21 $11,029 $11,094 $11,062 Jan 22 $10,749 $10,831 $10,786 Feb 22 $10,707 $10,778 $10,742 Mar 22 $10,471 $10,490 $10,510 Apr 22 $10,294 $10,214 $10,330 May 22 $10,450 $10,363 $10,479 Jun 22 $10,413 $10,194 $10,437 Jul 22 $10,603 $10,446 $10,628 Aug 22 $10,410 $10,205 $10,441 Sep 22 $10,161 $9,855 $10,187 Oct 22 $10,158 $9,793 $10,179 Nov 22 $10,403 $10,240 $10,428 Dec 22 $10,440 $10,244 $10,464 Jan 23 $10,610 $10,522 $10,636 Feb 23 $10,402 $10,280 $10,429 Mar 23 $10,595 $10,501 $10,624 Apr 23 $10,522 $10,482 $10,560 May 23 $10,446 $10,400 $10,484 Jun 23 $10,500 $10,486 $10,540 Jul 23 $10,515 $10,511 $10,558 Aug 23 $10,493 $10,394 $10,537 Sep 23 $10,383 $10,120 $10,427 Oct 23 $10,395 $10,013 $10,437 Nov 23 $10,646 $10,597 $10,689 Dec 23 $10,744 $10,841 $10,790 Jan 24 $10,731 $10,817 $10,778 Feb 24 $10,735 $10,818 $10,783 Mar 24 $10,711 $10,809 $10,769 Apr 24 $10,682 $10,694 $10,739 May 24 $10,685 $10,660 $10,745 Jun 24 $10,755 $10,826 $10,821 Jul 24 $10,837 $10,917 $10,907 Aug 24 $10,923 $11,006 $10,996 Sep 24 $10,963 $11,113 $11,038 Oct 24 $10,918 $10,966 $10,998 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.04 % 0.92 % 1.59 % S&P Municipal Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.52 1.09 1.67 S&P AMT-Free Municipal Series Callable-Adjusted Dec 2026 Index™ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.38 1.11 1.72 |
| Performance Inception Date | Apr. 02, 2019 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 493,194,363 |
| Holdings Count | Holding | 1,411 |
| Advisory Fees Paid, Amount | $ 798,184 |
| InvestmentCompanyPortfolioTurnover | 5% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $493,194,363 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,411 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $798,184 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5% |
| Holdings [Text Block] | Credit quality allocation Ten largest states S&P Credit Rating Footnote Reference Percent of Net Assets AAA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 29.6 % AA+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.8 AA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.4 AA- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.2 A+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 A- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 BBB+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.1 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 State Footnote Reference Percent of Net Assets California ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.0 % Texas ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.8 New York ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.9 Washington ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 Illinois ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Florida ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.9 Virginia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.6 Pennsylvania ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.6 Maryland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 Massachusetts ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.5 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by S&P Global Ratings, a widely used independent, nationally recognized statistical rating organization. S&P credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of BBB or higher. Below investment grade ratings are credit ratings of BB or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Rounds to less than 0.1%. Footnote (b) Excludes money market funds. |
| C000210857 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2027 Term Muni Bond ETF |
| Trading Symbol | IBMP |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2027 Term Muni Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2027 Term Muni Bond ETF $19 0.18% |
| Expenses Paid, Amount | $ 19 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 5.87%. For the same period, the S&P Municipal Bond Index returned 9.52% and the S&P AMT-Free Municipal Series Dec 2027 Index™ returned 6.20%. What contributed to performance? Municipal bonds gained during the reporting period, supported by an environment of slowing pricing pressures, delayed rate cuts, and steady growth in the United States. Disappointing labor data sparked a bond rally and helped to move the U.S. Federal Reserve off the sidelines, as it cut short-term rates by 50 basis points in September. During the reporting period, municipal investment grade bonds, particularly those rated AA, contributed the most to the Fund’s return, as the continued strength of the U.S. economy helped to keep municipal default rates low. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund S&P Municipal Bond Index S&P AMT-Free Municipal Series Callable-Adjusted Dec 2027 Index™ Apr 19 $10,076 $10,051 $10,062 May 19 $10,264 $10,185 $10,255 Jun 19 $10,294 $10,228 $10,297 Jul 19 $10,394 $10,307 $10,396 Aug 19 $10,589 $10,450 $10,586 Sep 19 $10,460 $10,378 $10,460 Oct 19 $10,463 $10,393 $10,465 Nov 19 $10,475 $10,410 $10,477 Dec 19 $10,515 $10,442 $10,522 Jan 20 $10,742 $10,609 $10,747 Feb 20 $10,867 $10,732 $10,879 Mar 20 $10,522 $10,417 $10,496 Apr 20 $10,438 $10,302 $10,394 May 20 $10,856 $10,607 $10,799 Jun 20 $10,889 $10,669 $10,844 Jul 20 $11,066 $10,814 $11,029 Aug 20 $11,019 $10,783 $10,992 Sep 20 $11,021 $10,784 $10,989 Oct 20 $10,987 $10,765 $10,958 Nov 20 $11,118 $10,895 $11,091 Dec 20 $11,156 $10,950 $11,148 Jan 21 $11,189 $11,001 $11,198 Feb 21 $10,976 $10,847 $10,994 Mar 21 $11,022 $10,905 $11,050 Apr 21 $11,096 $10,989 $11,129 May 21 $11,105 $11,027 $11,150 Jun 21 $11,121 $11,051 $11,165 Jul 21 $11,212 $11,126 $11,258 Aug 21 $11,183 $11,095 $11,231 Sep 21 $11,095 $11,021 $11,144 Oct 21 $11,065 $11,012 $11,117 Nov 21 $11,118 $11,088 $11,173 Dec 21 $11,132 $11,103 $11,185 Jan 22 $10,815 $10,839 $10,868 Feb 22 $10,773 $10,786 $10,824 Mar 22 $10,491 $10,498 $10,543 Apr 22 $10,275 $10,221 $10,320 May 22 $10,460 $10,370 $10,484 Jun 22 $10,402 $10,201 $10,420 Jul 22 $10,642 $10,453 $10,659 Aug 22 $10,428 $10,213 $10,451 Sep 22 $10,123 $9,862 $10,138 Oct 22 $10,113 $9,801 $10,117 Nov 22 $10,416 $10,247 $10,428 Dec 22 $10,464 $10,252 $10,470 Jan 23 $10,682 $10,530 $10,690 Feb 23 $10,447 $10,288 $10,458 Mar 23 $10,662 $10,509 $10,674 Apr 23 $10,595 $10,489 $10,617 May 23 $10,487 $10,407 $10,511 Jun 23 $10,548 $10,493 $10,575 Jul 23 $10,562 $10,519 $10,592 Aug 23 $10,515 $10,402 $10,545 Sep 23 $10,360 $10,127 $10,383 Oct 23 $10,350 $10,021 $10,371 Nov 23 $10,688 $10,605 $10,712 Dec 23 $10,822 $10,849 $10,848 Jan 24 $10,789 $10,825 $10,818 Feb 24 $10,797 $10,826 $10,826 Mar 24 $10,760 $10,817 $10,800 Apr 24 $10,703 $10,702 $10,740 May 24 $10,668 $10,667 $10,706 Jun 24 $10,757 $10,834 $10,802 Jul 24 $10,855 $10,925 $10,902 Aug 24 $10,968 $11,014 $11,017 Sep 24 $11,029 $11,121 $11,080 Oct 24 $10,958 $10,975 $11,014 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.87 % 0.93 % 1.66 % S&P Municipal Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.52 1.09 1.69 S&P AMT-Free Municipal Series Callable-Adjusted Dec 2027 Index™ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.20 1.03 1.75 |
| Performance Inception Date | Apr. 09, 2019 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 479,511,029 |
| Holdings Count | Holding | 1,338 |
| Advisory Fees Paid, Amount | $ 745,614 |
| InvestmentCompanyPortfolioTurnover | 3% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $479,511,029 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,338 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $745,614 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3% |
| Holdings [Text Block] | Credit quality allocation Ten largest states S&P Credit Rating Footnote Reference Percent of Net Assets AAA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 28.7 % AA+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.6 AA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.8 AA- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.3 A+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 A- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.9 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 State Footnote Reference Percent of Net Assets California ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.8 % Texas ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.6 New York ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.9 Washington ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.7 Illinois ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Florida ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Pennsylvania ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.3 Virginia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Maryland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Ohio ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.6 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by S&P Global Ratings, a widely used independent, nationally recognized statistical rating organization. S&P credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of BBB or higher. Below investment grade ratings are credit ratings of BB or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000210858 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2028 Term Muni Bond ETF |
| Trading Symbol | IBMQ |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2028 Term Muni Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2028 Term Muni Bond ETF $19 0.18% |
| Expenses Paid, Amount | $ 19 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 6.51%. For the same period, the S&P Municipal Bond Index returned 9.52% and the S&P AMT-Free Municipal Series Dec 2028 Index™ returned 6.92%. What contributed to performance? Municipal bonds gained during the reporting period, supported by an environment of slowing pricing pressures, delayed rate cuts, and steady growth in the United States. Disappointing labor data sparked a bond rally and helped to move the U.S. Federal Reserve off the sidelines, as it cut short-term rates by 50 basis points in September. During the reporting period, municipal investment grade bonds, particularly those rated AA, contributed the most to the Fund’s return, as the continued strength of the U.S. economy helped to keep municipal default rates low. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund S&P Municipal Bond Index S&P AMT-Free Municipal Series Callable-Adjusted Dec 2028 Index™ Apr 19 $10,076 $10,048 $10,066 May 19 $10,272 $10,181 $10,276 Jun 19 $10,322 $10,224 $10,321 Jul 19 $10,434 $10,303 $10,428 Aug 19 $10,649 $10,446 $10,643 Sep 19 $10,525 $10,374 $10,511 Oct 19 $10,515 $10,389 $10,505 Nov 19 $10,519 $10,406 $10,510 Dec 19 $10,564 $10,438 $10,556 Jan 20 $10,811 $10,605 $10,803 Feb 20 $10,961 $10,728 $10,959 Mar 20 $10,601 $10,413 $10,538 Apr 20 $10,501 $10,298 $10,397 May 20 $10,964 $10,603 $10,845 Jun 20 $10,997 $10,665 $10,901 Jul 20 $11,191 $10,809 $11,103 Aug 20 $11,117 $10,778 $11,043 Sep 20 $11,102 $10,779 $11,030 Oct 20 $11,069 $10,761 $10,997 Nov 20 $11,226 $10,891 $11,157 Dec 20 $11,281 $10,946 $11,228 Jan 21 $11,322 $10,997 $11,281 Feb 21 $11,066 $10,843 $11,040 Mar 21 $11,125 $10,901 $11,103 Apr 21 $11,213 $10,985 $11,197 May 21 $11,228 $11,023 $11,222 Jun 21 $11,245 $11,047 $11,242 Jul 21 $11,350 $11,122 $11,351 Aug 21 $11,310 $11,090 $11,315 Sep 21 $11,204 $11,017 $11,211 Oct 21 $11,169 $11,008 $11,177 Nov 21 $11,240 $11,084 $11,251 Dec 21 $11,255 $11,098 $11,267 Jan 22 $10,907 $10,835 $10,916 Feb 22 $10,869 $10,782 $10,873 Mar 22 $10,538 $10,494 $10,545 Apr 22 $10,273 $10,217 $10,274 May 22 $10,462 $10,366 $10,450 Jun 22 $10,375 $10,197 $10,360 Jul 22 $10,650 $10,449 $10,640 Aug 22 $10,439 $10,209 $10,425 Sep 22 $10,096 $9,859 $10,066 Oct 22 $10,072 $9,797 $10,035 Nov 22 $10,431 $10,243 $10,402 Dec 22 $10,493 $10,248 $10,456 Jan 23 $10,753 $10,525 $10,719 Feb 23 $10,500 $10,284 $10,466 Mar 23 $10,726 $10,505 $10,696 Apr 23 $10,670 $10,485 $10,645 May 23 $10,537 $10,403 $10,514 Jun 23 $10,605 $10,489 $10,585 Jul 23 $10,618 $10,515 $10,602 Aug 23 $10,545 $10,398 $10,529 Sep 23 $10,343 $10,123 $10,320 Oct 23 $10,317 $10,017 $10,285 Nov 23 $10,734 $10,600 $10,707 Dec 23 $10,910 $10,845 $10,885 Jan 24 $10,861 $10,821 $10,842 Feb 24 $10,869 $10,822 $10,849 Mar 24 $10,830 $10,813 $10,821 Apr 24 $10,742 $10,697 $10,733 May 24 $10,667 $10,663 $10,659 Jun 24 $10,773 $10,829 $10,772 Jul 24 $10,881 $10,921 $10,880 Aug 24 $11,018 $11,009 $11,020 Sep 24 $11,092 $11,117 $11,096 Oct 24 $10,989 $10,970 $10,997 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.51 % 0.88 % 1.71 % S&P Municipal Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.52 1.09 1.69 S&P AMT-Free Municipal Series Callable-Adjusted Dec 2028 Index™ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.92 0.92 1.73 |
| Performance Inception Date | Apr. 16, 2019 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 371,631,542 |
| Holdings Count | Holding | 1,203 |
| Advisory Fees Paid, Amount | $ 562,730 |
| InvestmentCompanyPortfolioTurnover | 3% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $371,631,542 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1,203 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $562,730 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3% |
| Holdings [Text Block] | Credit quality allocation Ten largest states S&P Credit Rating Footnote Reference Percent of Net Assets AAA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 29.6 % AA+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.4 AA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.2 AA- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.5 A+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 A- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 BBB+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.1 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.6 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 State Footnote Reference Percent of Net Assets Texas ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.1 % California ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.6 New York ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.8 Washington ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 Illinois ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.0 Maryland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.7 Virginia ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.6 Florida ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Ohio ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Pennsylvania ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by S&P Global Ratings, a widely used independent, nationally recognized statistical rating organization. S&P credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of BBB or higher. Below investment grade ratings are credit ratings of BB or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000242692 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2029 Term Muni Bond ETF |
| Trading Symbol | IBMR |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2029 Term Muni Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2029 Term Muni Bond ETF $19 0.18% |
| Expenses Paid, Amount | $ 19 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 8.38%. For the same period, the S&P Municipal Bond Index returned 9.52% and the S&P AMT-Free Municipal Series Callable-Adjusted Dec 2029 Index™ returned 7.49%. What contributed to performance? Municipal bonds gained during the reporting period, supported by an environment of slowing pricing pressures, delayed rate cuts, and steady growth in the United States. Disappointing labor data sparked a bond rally and helped to move the U.S. Federal Reserve off the sidelines, as it cut short-term rates by 50 basis points in September. During the reporting period, municipal investment grade bonds, particularly those rated AA, contributed the most to the Fund’s return, as the continued strength of the U.S. economy helped to keep municipal default rates low. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund S&P Municipal Bond Index S&P AMT-Free Municipal Series Callable-Adjusted Dec 2029 Index™ Apr 23 $10,000 $10,000 $10,000 May 23 $9,831 $9,887 $9,822 Jun 23 $9,917 $9,968 $9,894 Jul 23 $9,955 $9,993 $9,911 Aug 23 $9,844 $9,881 $9,806 Sep 23 $9,590 $9,621 $9,559 Oct 23 $9,555 $9,519 $9,507 Nov 23 $10,094 $10,074 $9,976 Dec 23 $10,345 $10,306 $10,191 Jan 24 $10,298 $10,283 $10,148 Feb 24 $10,297 $10,284 $10,145 Mar 24 $10,260 $10,276 $10,116 Apr 24 $10,148 $10,166 $10,003 May 24 $10,042 $10,134 $9,899 Jun 24 $10,164 $10,292 $10,025 Jul 24 $10,263 $10,379 $10,125 Aug 24 $10,410 $10,463 $10,269 Sep 24 $10,491 $10,565 $10,352 Oct 24 $10,356 $10,425 $10,219 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.38 % 2.39 % S&P Municipal Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.52 2.86 S&P AMT-Free Municipal Series Callable-Adjusted Dec 2029 Index™ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.49 1.48 |
| Performance Inception Date | May 09, 2023 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 146,647,410 |
| Holdings Count | Holding | 771 |
| Advisory Fees Paid, Amount | $ 158,351 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $146,647,410 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 771 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $158,351 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation Ten largest states S&P Credit Rating Footnote Reference Percent of Net Assets AAA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 34.3 % AA+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.1 AA ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.0 AA- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.5 A+ ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 A- ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.3 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 State Footnote Reference Percent of Net Assets California ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.0 % Texas ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.9 New York ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.8 Maryland ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 Washington ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.3 Illinois ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 North Carolina ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Pennsylvania ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Florida ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 Ohio ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by S&P Global Ratings, a widely used independent, nationally recognized statistical rating organization. S&P credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of BBB or higher. Below investment grade ratings are credit ratings of BB or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000093655 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares 0-5 Year TIPS Bond ETF |
| Trading Symbol | STIP |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares 0-5 Year TIPS Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares 0-5 Year TIPS Bond ETF $3 0.03% |
| Expenses Paid, Amount | $ 3 |
| Expense Ratio, Percent | 0.03% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 6.67%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE U.S. Treasury 0-5 Year Inflation Linked Bond Index returned 6.64%. What contributed to performance? During the reporting period, inflation expectations moved lower and closer to the U.S. Federal Reserve’s 2% target, supporting a modest return for shorter-maturity TIPS (Treasury Inflation Protected Securities). Amid slowing pricing pressures and steady economic growth, the U.S. Federal Reserve lowered short-term interest rates by 50 basis point cut, its first-rate reduction since March 2020. Performance for TIPS is influenced by both the direction of interest rates and changes in inflation expectations. What detracted from performance? There were no significant detractors from the Fund’s return during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund ICE BofA US Broad Market Index ICE U.S. Treasury 0-5 Year Inflation Linked Bond Index Nov 14 $9,980 $10,076 $9,984 Dec 14 $9,848 $10,084 $9,852 Jan 15 $9,940 $10,306 $9,942 Feb 15 $9,922 $10,200 $9,924 Mar 15 $9,885 $10,252 $9,889 Apr 15 $9,951 $10,212 $9,958 May 15 $9,940 $10,188 $9,953 Jun 15 $9,941 $10,078 $9,948 Jul 15 $9,908 $10,150 $9,917 Aug 15 $9,884 $10,135 $9,892 Sep 15 $9,875 $10,203 $9,884 Oct 15 $9,878 $10,207 $9,887 Nov 15 $9,861 $10,178 $9,871 Dec 15 $9,838 $10,144 $9,849 Jan 16 $9,893 $10,290 $9,903 Feb 16 $9,915 $10,366 $9,927 Mar 16 $10,014 $10,456 $10,028 Apr 16 $10,017 $10,495 $10,031 May 16 $10,005 $10,500 $10,020 Jun 16 $10,097 $10,695 $10,113 Jul 16 $10,084 $10,764 $10,103 Aug 16 $10,059 $10,750 $10,077 Sep 16 $10,125 $10,740 $10,143 Oct 16 $10,130 $10,653 $10,147 Nov 16 $10,078 $10,398 $10,095 Dec 16 $10,110 $10,410 $10,127 Jan 17 $10,159 $10,434 $10,172 Feb 17 $10,170 $10,505 $10,182 Mar 17 $10,180 $10,501 $10,197 Apr 17 $10,175 $10,580 $10,198 May 17 $10,169 $10,663 $10,190 Jun 17 $10,125 $10,654 $10,146 Jul 17 $10,154 $10,698 $10,175 Aug 17 $10,181 $10,798 $10,204 Sep 17 $10,173 $10,743 $10,194 Oct 17 $10,189 $10,750 $10,213 Nov 17 $10,171 $10,736 $10,196 Dec 17 $10,191 $10,786 $10,215 Jan 18 $10,164 $10,662 $10,187 Feb 18 $10,160 $10,561 $10,183 Mar 18 $10,208 $10,630 $10,237 Apr 18 $10,208 $10,552 $10,233 May 18 $10,245 $10,626 $10,270 Jun 18 $10,258 $10,615 $10,287 Jul 18 $10,244 $10,616 $10,270 Aug 18 $10,297 $10,685 $10,323 Sep 18 $10,273 $10,617 $10,298 Oct 18 $10,228 $10,534 $10,256 Nov 18 $10,229 $10,595 $10,256 Dec 18 $10,242 $10,791 $10,275 Jan 19 $10,320 $10,901 $10,348 Feb 19 $10,339 $10,900 $10,367 Mar 19 $10,413 $11,114 $10,446 Apr 19 $10,462 $11,116 $10,493 May 19 $10,516 $11,317 $10,548 Jun 19 $10,580 $11,464 $10,618 Jul 19 $10,589 $11,494 $10,620 Aug 19 $10,646 $11,807 $10,676 Sep 19 $10,623 $11,736 $10,652 Oct 19 $10,655 $11,768 $10,684 Nov 19 $10,667 $11,762 $10,697 Dec 19 $10,744 $11,749 $10,774 Jan 20 $10,794 $11,987 $10,820 Feb 20 $10,849 $12,206 $10,876 Mar 20 $10,678 $12,119 $10,700 Apr 20 $10,817 $12,331 $10,827 May 20 $10,892 $12,394 $10,899 Jun 20 $10,972 $12,477 $10,981 Jul 20 $11,049 $12,670 $11,062 Aug 20 $11,174 $12,565 $11,190 Sep 20 $11,158 $12,564 $11,173 Oct 20 $11,133 $12,501 $11,148 Nov 20 $11,202 $12,624 $11,216 Dec 20 $11,299 $12,638 $11,320 Jan 21 $11,360 $12,539 $11,380 Feb 21 $11,379 $12,315 $11,392 Mar 21 $11,436 $12,185 $11,441 Apr 21 $11,530 $12,290 $11,536 May 21 $11,614 $12,327 $11,631 Jun 21 $11,628 $12,431 $11,634 Jul 21 $11,778 $12,565 $11,786 Aug 21 $11,783 $12,548 $11,790 Sep 21 $11,781 $12,428 $11,786 Oct 21 $11,862 $12,431 $11,867 Nov 21 $11,882 $12,479 $11,885 Dec 21 $11,918 $12,439 $11,924 Jan 22 $11,855 $12,178 $11,858 Feb 22 $11,976 $12,023 $11,980 Mar 22 $11,882 $11,687 $11,889 Apr 22 $11,877 $11,258 $11,886 May 22 $11,929 $11,306 $11,936 Jun 22 $11,755 $11,154 $11,758 Jul 22 $11,959 $11,412 $11,972 Aug 22 $11,782 $11,102 $11,788 Sep 22 $11,448 $10,613 $11,450 Oct 22 $11,564 $10,468 $11,565 Nov 22 $11,619 $10,847 $11,621 Dec 22 $11,583 $10,801 $11,598 Jan 23 $11,676 $11,126 $11,675 Feb 23 $11,627 $10,847 $11,631 Mar 23 $11,840 $11,122 $11,849 Apr 23 $11,867 $11,193 $11,879 May 23 $11,788 $11,071 $11,794 Jun 23 $11,765 $11,031 $11,772 Jul 23 $11,826 $11,022 $11,829 Aug 23 $11,839 $10,953 $11,842 Sep 23 $11,817 $10,681 $11,822 Oct 23 $11,861 $10,515 $11,866 Nov 23 $11,985 $10,977 $11,990 Dec 23 $12,115 $11,384 $12,119 Jan 24 $12,172 $11,370 $12,175 Feb 24 $12,149 $11,215 $12,152 Mar 24 $12,212 $11,309 $12,218 Apr 24 $12,212 $11,036 $12,218 May 24 $12,325 $11,223 $12,330 Jun 24 $12,393 $11,331 $12,398 Jul 24 $12,510 $11,593 $12,512 Aug 24 $12,582 $11,759 $12,584 Sep 24 $12,707 $11,916 $12,710 Oct 24 $12,652 $11,625 $12,654 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.67 % 3.49 % 2.38 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.24 ) 1.52 ICE U.S. Treasury 0-5 Year Inflation Linked Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.64 3.44 2.38 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 8,125,899,966 |
| Holdings Count | Holding | 28 |
| Advisory Fees Paid, Amount | $ 2,437,647 |
| InvestmentCompanyPortfolioTurnover | 25% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $8,125,899,966 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 28 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,437,647 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25% |
| Holdings [Text Block] | Maturity allocation Ten largest holdings Maturity Percent of TotaI Investments Footnote Reference 0-1 Year ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.1 % 1-2 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.4 2-3 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.1 3-4 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.6 4-5 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.8 Security Percent of Total Investments Footnote Reference U.S. Treasury Inflation Linked Notes 0.00 1.25%, 04/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.6 % 2.13%, 04/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.5 2.38%, 10/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 1.63%, 10/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.0 0.25%, 01/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 0.38%, 07/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 0.13%, 10/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 0.13%, 10/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 0.13%, 04/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.7 0.50%, 01/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 Footnote Description Footnote (a) Excludes money market funds. |
| C000012093 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares TIPS Bond ETF |
| Trading Symbol | TIP |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares TIPS Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares TIPS Bond ETF $19 0.18% |
| Expenses Paid, Amount | $ 19 |
| Expense Ratio, Percent | 0.18% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 8.41%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE U.S. Treasury Inflation Linked Bond Index returned 8.56%. What contributed to performance? Inflation expectations moved lower during the reporting period, closer to the U.S. Federal Reserve’s 2% target, supporting a modest return for Treasury Inflation Protected Securities (TIPS) issues. Amid slowing pricing pressures and steady economic growth, the U.S. Federal Reserve lowered short-term interest rates by 50 basis point cut, its first-rate reduction since March 2020. Performance for TIPS is influenced by both the direction of interest rates and changes in inflation expectations. In addition to falling inflation rates, the 10-year breakeven ended at 2.33%, down from 2.42% a year earlier, based on data from the St. Louis Fed. What detracted from performance? There were no significant detractors from the Fund’s return during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund ICE BofA US Broad Market Index ICE U.S. Treasury Inflation Linked Bond Index Nov 14 $10,021 $10,076 $10,026 Dec 14 $9,908 $10,084 $9,913 Jan 15 $10,223 $10,306 $10,225 Feb 15 $10,099 $10,200 $10,102 Mar 15 $10,048 $10,252 $10,054 Apr 15 $10,118 $10,212 $10,128 May 15 $10,027 $10,188 $10,045 Jun 15 $9,935 $10,078 $9,947 Jul 15 $9,952 $10,150 $9,968 Aug 15 $9,875 $10,135 $9,892 Sep 15 $9,816 $10,203 $9,833 Oct 15 $9,842 $10,207 $9,858 Nov 15 $9,831 $10,178 $9,848 Dec 15 $9,751 $10,144 $9,770 Jan 16 $9,896 $10,290 $9,915 Feb 16 $10,005 $10,366 $10,026 Mar 16 $10,182 $10,456 $10,206 Apr 16 $10,215 $10,495 $10,241 May 16 $10,143 $10,500 $10,169 Jun 16 $10,351 $10,695 $10,380 Jul 16 $10,438 $10,764 $10,470 Aug 16 $10,396 $10,750 $10,423 Sep 16 $10,450 $10,740 $10,480 Oct 16 $10,408 $10,653 $10,438 Nov 16 $10,208 $10,398 $10,238 Dec 16 $10,195 $10,410 $10,228 Jan 17 $10,282 $10,434 $10,314 Feb 17 $10,331 $10,505 $10,362 Mar 17 $10,320 $10,501 $10,357 Apr 17 $10,379 $10,580 $10,418 May 17 $10,377 $10,663 $10,414 Jun 17 $10,278 $10,654 $10,315 Jul 17 $10,322 $10,698 $10,361 Aug 17 $10,432 $10,798 $10,471 Sep 17 $10,364 $10,743 $10,404 Oct 17 $10,384 $10,750 $10,426 Nov 17 $10,397 $10,736 $10,440 Dec 17 $10,493 $10,786 $10,535 Jan 18 $10,403 $10,662 $10,445 Feb 18 $10,301 $10,561 $10,344 Mar 18 $10,403 $10,630 $10,452 Apr 18 $10,399 $10,552 $10,446 May 18 $10,443 $10,626 $10,491 Jun 18 $10,484 $10,615 $10,533 Jul 18 $10,433 $10,616 $10,482 Aug 18 $10,508 $10,685 $10,558 Sep 18 $10,396 $10,617 $10,447 Oct 18 $10,243 $10,534 $10,297 Nov 18 $10,291 $10,595 $10,346 Dec 18 $10,343 $10,791 $10,403 Jan 19 $10,484 $10,901 $10,542 Feb 19 $10,482 $10,900 $10,541 Mar 19 $10,670 $11,114 $10,735 Apr 19 $10,703 $11,116 $10,771 May 19 $10,879 $11,317 $10,948 Jun 19 $10,965 $11,464 $11,042 Jul 19 $11,009 $11,494 $11,082 Aug 19 $11,273 $11,807 $11,345 Sep 19 $11,117 $11,736 $11,191 Oct 19 $11,145 $11,768 $11,220 Nov 19 $11,162 $11,762 $11,237 Dec 19 $11,199 $11,749 $11,279 Jan 20 $11,437 $11,987 $11,516 Feb 20 $11,594 $12,206 $11,675 Mar 20 $11,386 $12,119 $11,470 Apr 20 $11,712 $12,331 $11,789 May 20 $11,748 $12,394 $11,825 Jun 20 $11,877 $12,477 $11,957 Jul 20 $12,148 $12,670 $12,231 Aug 20 $12,275 $12,565 $12,365 Sep 20 $12,230 $12,564 $12,319 Oct 20 $12,150 $12,501 $12,240 Nov 20 $12,288 $12,624 $12,377 Dec 20 $12,420 $12,638 $12,519 Jan 21 $12,457 $12,539 $12,560 Feb 21 $12,245 $12,315 $12,358 Mar 21 $12,212 $12,185 $12,335 Apr 21 $12,379 $12,290 $12,507 May 21 $12,519 $12,327 $12,659 Jun 21 $12,604 $12,431 $12,736 Jul 21 $12,933 $12,565 $13,075 Aug 21 $12,912 $12,548 $13,052 Sep 21 $12,819 $12,428 $12,959 Oct 21 $12,960 $12,431 $13,106 Nov 21 $13,076 $12,479 $13,223 Dec 21 $13,106 $12,439 $13,265 Jan 22 $12,848 $12,178 $12,996 Feb 22 $12,956 $12,023 $13,107 Mar 22 $12,709 $11,687 $12,864 Apr 22 $12,441 $11,258 $12,601 May 22 $12,321 $11,306 $12,476 Jun 22 $11,932 $11,154 $12,081 Jul 22 $12,439 $11,412 $12,607 Aug 22 $12,115 $11,102 $12,272 Sep 22 $11,311 $10,613 $11,460 Oct 22 $11,454 $10,468 $11,602 Nov 22 $11,659 $10,847 $11,814 Dec 22 $11,516 $10,801 $11,693 Jan 23 $11,750 $11,126 $11,908 Feb 23 $11,587 $10,847 $11,741 Mar 23 $11,917 $11,122 $12,083 Apr 23 $11,928 $11,193 $12,099 May 23 $11,783 $11,071 $11,947 Jun 23 $11,742 $11,031 $11,907 Jul 23 $11,760 $11,022 $11,926 Aug 23 $11,652 $10,953 $11,818 Sep 23 $11,434 $10,681 $11,599 Oct 23 $11,354 $10,515 $11,519 Nov 23 $11,653 $10,977 $11,824 Dec 23 $11,940 $11,384 $12,114 Jan 24 $11,986 $11,370 $12,162 Feb 24 $11,858 $11,215 $12,033 Mar 24 $11,931 $11,309 $12,112 Apr 24 $11,753 $11,036 $11,933 May 24 $11,950 $11,223 $12,135 Jun 24 $12,040 $11,331 $12,227 Jul 24 $12,258 $11,593 $12,449 Aug 24 $12,352 $11,759 $12,546 Sep 24 $12,533 $11,916 $12,732 Oct 24 $12,308 $11,625 $12,505 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.41 % 2.01 % 2.10 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.24 ) 1.52 ICE U.S. Treasury Inflation Linked Bond Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.56 2.19 2.26 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 17,378,658,009 |
| Holdings Count | Holding | 50 |
| Advisory Fees Paid, Amount | $ 34,265,032 |
| InvestmentCompanyPortfolioTurnover | 22% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $17,378,658,009 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 50 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $34,265,032 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22% |
| Holdings [Text Block] | Maturity allocation Ten largest holdings Maturity Percent of TotaI Investments Footnote Reference 0-1 Year ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 % 1-5 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 52.1 5-10 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.8 15-20 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.5 20-25 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 25-30 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 Security Percent of Total Investments Footnote Reference U.S. Treasury Inflation Linked Notes 0.00 1.75%, 01/15/34 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.8 % 0.63%, 07/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.7 1.13%, 01/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.7 1.38%, 07/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 2.13%, 04/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 2.38%, 10/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 1.63%, 10/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.3 0.13%, 01/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.3 1.25%, 04/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.3 0.13%, 07/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 Footnote Description Footnote (a) Excludes money market funds. |
| C000110086 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares U.S. Treasury Bond ETF |
| Trading Symbol | GOVT |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares U.S. Treasury Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares U.S. Treasury Bond ETF $5 0.05% |
| Expenses Paid, Amount | $ 5 |
| Expense Ratio, Percent | 0.05% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 8.37%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE ® What contributed to performance? U.S. Treasury returns moved higher during the reporting period amid both expectations and the realization of an interest rate cut by the U.S. Federal Reserve Bank. For the first time since March 2020, the central bank lowered short-term interest rates, announcing a 50 basis point cut. Leading up to the interest rate decision meeting, the yield on the 10-year Treasury moved lower but trended steadily higher following September’s rate cut, ultimately ending the period at 4.28%, down from 4.93% (bond prices and yields move in opposite directions). The pivot to lower interest rates benefited longer-term issues, which are more sensitive to interest rate movements, and the Fund’s allocation to bonds with maturities of seven to ten years and over ten years contributed meaningfully to the Fund’s return. What detracted from performance? There were no significant detractors from the Fund’s return during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund ICE BofA US Broad Market Index ICE ® Nov 14 $10,079 $10,076 $10,081 Dec 14 $10,096 $10,084 $10,095 Jan 15 $10,353 $10,306 $10,356 Feb 15 $10,192 $10,200 $10,196 Mar 15 $10,257 $10,252 $10,261 Apr 15 $10,203 $10,212 $10,207 May 15 $10,183 $10,188 $10,188 Jun 15 $10,094 $10,078 $10,098 Jul 15 $10,177 $10,150 $10,182 Aug 15 $10,181 $10,135 $10,187 Sep 15 $10,269 $10,203 $10,276 Oct 15 $10,232 $10,207 $10,239 Nov 15 $10,191 $10,178 $10,197 Dec 15 $10,173 $10,144 $10,180 Jan 16 $10,384 $10,290 $10,397 Feb 16 $10,482 $10,366 $10,490 Mar 16 $10,498 $10,456 $10,506 Apr 16 $10,486 $10,495 $10,495 May 16 $10,486 $10,500 $10,495 Jun 16 $10,715 $10,695 $10,726 Jul 16 $10,756 $10,764 $10,766 Aug 16 $10,695 $10,750 $10,706 Sep 16 $10,682 $10,740 $10,693 Oct 16 $10,562 $10,653 $10,575 Nov 16 $10,278 $10,398 $10,293 Dec 16 $10,267 $10,410 $10,283 Jan 17 $10,287 $10,434 $10,305 Feb 17 $10,339 $10,505 $10,356 Mar 17 $10,334 $10,501 $10,352 Apr 17 $10,404 $10,580 $10,424 May 17 $10,472 $10,663 $10,492 Jun 17 $10,457 $10,654 $10,474 Jul 17 $10,471 $10,698 $10,492 Aug 17 $10,585 $10,798 $10,606 Sep 17 $10,491 $10,743 $10,515 Oct 17 $10,476 $10,750 $10,502 Nov 17 $10,462 $10,736 $10,487 Dec 17 $10,492 $10,786 $10,520 Jan 18 $10,345 $10,662 $10,376 Feb 18 $10,269 $10,561 $10,298 Mar 18 $10,363 $10,630 $10,396 Apr 18 $10,278 $10,552 $10,312 May 18 $10,370 $10,626 $10,405 Jun 18 $10,371 $10,615 $10,407 Jul 18 $10,329 $10,616 $10,363 Aug 18 $10,406 $10,685 $10,442 Sep 18 $10,306 $10,617 $10,345 Oct 18 $10,256 $10,534 $10,296 Nov 18 $10,347 $10,595 $10,387 Dec 18 $10,570 $10,791 $10,611 Jan 19 $10,617 $10,901 $10,660 Feb 19 $10,590 $10,900 $10,632 Mar 19 $10,787 $11,114 $10,835 Apr 19 $10,760 $11,116 $10,804 May 19 $11,011 $11,317 $11,060 Jun 19 $11,108 $11,464 $11,161 Jul 19 $11,096 $11,494 $11,148 Aug 19 $11,477 $11,807 $11,529 Sep 19 $11,379 $11,736 $11,429 Oct 19 $11,383 $11,768 $11,436 Nov 19 $11,345 $11,762 $11,403 Dec 19 $11,279 $11,749 $11,339 Jan 20 $11,558 $11,987 $11,618 Feb 20 $11,859 $12,206 $11,925 Mar 20 $12,238 $12,119 $12,303 Apr 20 $12,280 $12,331 $12,350 May 20 $12,246 $12,394 $12,316 Jun 20 $12,256 $12,477 $12,329 Jul 20 $12,396 $12,670 $12,469 Aug 20 $12,259 $12,565 $12,331 Sep 20 $12,279 $12,564 $12,351 Oct 20 $12,161 $12,501 $12,234 Nov 20 $12,202 $12,624 $12,277 Dec 20 $12,173 $12,638 $12,248 Jan 21 $12,053 $12,539 $12,120 Feb 21 $11,826 $12,315 $11,858 Mar 21 $11,648 $12,185 $11,725 Apr 21 $11,736 $12,290 $11,814 May 21 $11,759 $12,327 $11,837 Jun 21 $11,853 $12,431 $11,932 Jul 21 $12,010 $12,565 $12,093 Aug 21 $11,989 $12,548 $12,072 Sep 21 $11,861 $12,428 $11,940 Oct 21 $11,847 $12,431 $11,932 Nov 21 $11,938 $12,479 $12,025 Dec 21 $11,864 $12,439 $11,949 Jan 22 $11,653 $12,178 $11,738 Feb 22 $11,572 $12,023 $11,659 Mar 22 $11,207 $11,687 $11,298 Apr 22 $10,860 $11,258 $10,949 May 22 $10,877 $11,306 $10,967 Jun 22 $10,781 $11,154 $10,871 Jul 22 $10,951 $11,412 $11,046 Aug 22 $10,676 $11,102 $10,769 Sep 22 $10,309 $10,613 $10,399 Oct 22 $10,164 $10,468 $10,253 Nov 22 $10,437 $10,847 $10,527 Dec 22 $10,358 $10,801 $10,475 Jan 23 $10,645 $11,126 $10,735 Feb 23 $10,400 $10,847 $10,484 Mar 23 $10,701 $11,122 $10,788 Apr 23 $10,757 $11,193 $10,845 May 23 $10,634 $11,071 $10,719 Jun 23 $10,557 $11,031 $10,638 Jul 23 $10,519 $11,022 $10,602 Aug 23 $10,464 $10,953 $10,547 Sep 23 $10,232 $10,681 $10,313 Oct 23 $10,109 $10,515 $10,189 Nov 23 $10,458 $10,977 $10,540 Dec 23 $10,794 $11,384 $10,880 Jan 24 $10,781 $11,370 $10,867 Feb 24 $10,640 $11,215 $10,724 Mar 24 $10,698 $11,309 $10,782 Apr 24 $10,460 $11,036 $10,542 May 24 $10,611 $11,223 $10,695 Jun 24 $10,716 $11,331 $10,802 Jul 24 $10,951 $11,593 $11,040 Aug 24 $11,092 $11,759 $11,181 Sep 24 $11,223 $11,916 $11,315 Oct 24 $10,955 $11,625 $11,045 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.37 % (0.76 )% 0.92 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.24 ) 1.52 ICE ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.41 (0.69 ) 1.00 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 28,768,517,103 |
| Holdings Count | Holding | 185 |
| Advisory Fees Paid, Amount | $ 12,582,086 |
| InvestmentCompanyPortfolioTurnover | 18% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $28,768,517,103 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 185 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $12,582,086 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18% |
| Holdings [Text Block] | Maturity allocation Ten largest holdings Maturity Percent of TotaI Investments Footnote Reference 0-1 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 % 1-5 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 57.6 5-10 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.5 10-15 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 15-20 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.2 More than 20 Years ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.0 Security Percent of Total Investments Footnote Reference U.S. Treasury Notes 0.00 1.38%, 11/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 % 3.13%, 11/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.2 2.63%, 02/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 1.88%, 02/15/51 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.7 2.75%, 02/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.6 0.38%, 11/30/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 2.25%, 02/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.3 0.75%, 08/31/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.9 1.63%, 05/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 2.50%, 05/15/46 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.6 Footnote Description Footnote (a) Excludes money market funds. |
| C000217185 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2024 Term Treasury ETF |
| Trading Symbol | IBTE |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2024 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2024 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 5.46%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2024 Maturity US Treasury Index returned 4.86%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: February 25, 2020 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2024 Maturity US Treasury Index Jan 20 $10,000 $10,000 $10,000 Feb 20 $10,104 $10,071 $10,103 Mar 20 $10,343 $9,999 $10,345 Apr 20 $10,360 $10,174 $10,361 May 20 $10,385 $10,226 $10,389 Jun 20 $10,403 $10,295 $10,404 Jul 20 $10,425 $10,453 $10,429 Aug 20 $10,415 $10,367 $10,419 Sep 20 $10,417 $10,366 $10,420 Oct 20 $10,395 $10,315 $10,399 Nov 20 $10,404 $10,416 $10,409 Dec 20 $10,413 $10,427 $10,421 Jan 21 $10,409 $10,346 $10,413 Feb 21 $10,367 $10,161 $10,361 Mar 21 $10,343 $10,054 $10,355 Apr 21 $10,364 $10,140 $10,372 May 21 $10,380 $10,171 $10,389 Jun 21 $10,348 $10,257 $10,356 Jul 21 $10,385 $10,367 $10,394 Aug 21 $10,380 $10,353 $10,389 Sep 21 $10,358 $10,254 $10,366 Oct 21 $10,301 $10,256 $10,309 Nov 21 $10,296 $10,297 $10,305 Dec 21 $10,272 $10,263 $10,279 Jan 22 $10,179 $10,048 $10,187 Feb 22 $10,124 $9,920 $10,134 Mar 22 $9,947 $9,643 $9,957 Apr 22 $9,893 $9,288 $9,903 May 22 $9,959 $9,328 $9,969 Jun 22 $9,895 $9,203 $9,905 Jul 22 $9,933 $9,416 $9,943 Aug 22 $9,861 $9,160 $9,871 Sep 22 $9,754 $8,756 $9,764 Oct 22 $9,741 $8,637 $9,752 Nov 22 $9,788 $8,950 $9,800 Dec 22 $9,810 $8,912 $9,825 Jan 23 $9,864 $9,180 $9,875 Feb 23 $9,826 $8,950 $9,839 Mar 23 $9,943 $9,177 $9,956 Apr 23 $9,959 $9,235 $9,973 May 23 $9,951 $9,135 $9,965 Jun 23 $9,960 $9,102 $9,975 Jul 23 $10,005 $9,094 $10,020 Aug 23 $10,049 $9,037 $10,065 Sep 23 $10,085 $8,813 $10,102 Oct 23 $10,129 $8,676 $10,146 Nov 23 $10,185 $9,057 $10,203 Dec 23 $10,241 $9,393 $10,260 Jan 24 $10,284 $9,382 $10,303 Feb 24 $10,318 $9,253 $10,335 Mar 24 $10,360 $9,331 $10,377 Apr 24 $10,404 $9,106 $10,420 May 24 $10,452 $9,260 $10,466 Jun 24 $10,494 $9,349 $10,508 Jul 24 $10,544 $9,565 $10,556 Aug 24 $10,594 $9,702 $10,595 Sep 24 $10,641 $9,832 $10,622 Oct 24 $10,682 $9,591 $10,640 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.46 % 1.42 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.89 ) ICE 2024 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.86 1.33 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 1,794,648,454 |
| Holdings Count | Holding | 7 |
| Advisory Fees Paid, Amount | $ 1,746,359 |
| InvestmentCompanyPortfolioTurnover | 7% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,794,648,454 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,746,359 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.7 % Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.3 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 73.0 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes, 4.50%, 11/30/24 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.2 % U.S. Treasury Notes, 1.50%, 11/30/24 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.6 U.S. Treasury Notes, 0.75%, 11/15/24 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.3 U.S. Treasury Notes, 2.25%, 11/15/24 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.3 U.S. Treasury Notes, 1.00%, 12/15/24 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.6 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000217186 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2025 Term Treasury ETF |
| Trading Symbol | IBTF |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2025 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2025 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 5.71%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2025 Maturity US Treasury Index returned 5.76%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund ICE BofA US Broad Market Index ICE 2025 Maturity US Treasury Index Jan 20 $10,000 $10,000 $10,000 Feb 20 $10,112 $10,071 $10,116 Mar 20 $10,387 $9,999 $10,391 Apr 20 $10,412 $10,174 $10,415 May 20 $10,437 $10,226 $10,442 Jun 20 $10,459 $10,295 $10,462 Jul 20 $10,497 $10,453 $10,500 Aug 20 $10,479 $10,367 $10,483 Sep 20 $10,481 $10,366 $10,486 Oct 20 $10,439 $10,315 $10,444 Nov 20 $10,453 $10,416 $10,459 Dec 20 $10,464 $10,427 $10,471 Jan 21 $10,448 $10,346 $10,448 Feb 21 $10,345 $10,161 $10,330 Mar 21 $10,289 $10,054 $10,297 Apr 21 $10,329 $10,140 $10,339 May 21 $10,354 $10,171 $10,366 Jun 21 $10,322 $10,257 $10,331 Jul 21 $10,391 $10,367 $10,401 Aug 21 $10,375 $10,353 $10,384 Sep 21 $10,324 $10,254 $10,334 Oct 21 $10,248 $10,256 $10,257 Nov 21 $10,249 $10,297 $10,258 Dec 21 $10,220 $10,263 $10,230 Jan 22 $10,103 $10,048 $10,112 Feb 22 $10,041 $9,920 $10,050 Mar 22 $9,794 $9,643 $9,802 Apr 22 $9,700 $9,288 $9,709 May 22 $9,774 $9,328 $9,781 Jun 22 $9,712 $9,203 $9,720 Jul 22 $9,790 $9,416 $9,797 Aug 22 $9,642 $9,160 $9,652 Sep 22 $9,477 $8,756 $9,487 Oct 22 $9,466 $8,637 $9,476 Nov 22 $9,566 $8,950 $9,576 Dec 22 $9,563 $8,912 $9,582 Jan 23 $9,664 $9,180 $9,675 Feb 23 $9,555 $8,950 $9,567 Mar 23 $9,734 $9,177 $9,747 Apr 23 $9,764 $9,235 $9,776 May 23 $9,723 $9,135 $9,735 Jun 23 $9,663 $9,102 $9,675 Jul 23 $9,695 $9,094 $9,707 Aug 23 $9,735 $9,037 $9,747 Sep 23 $9,738 $8,813 $9,751 Oct 23 $9,776 $8,676 $9,790 Nov 23 $9,862 $9,057 $9,875 Dec 23 $9,957 $9,393 $9,971 Jan 24 $9,998 $9,382 $10,013 Feb 24 $9,979 $9,253 $9,994 Mar 24 $10,012 $9,331 $10,028 Apr 24 $10,019 $9,106 $10,035 May 24 $10,072 $9,260 $10,089 Jun 24 $10,115 $9,349 $10,132 Jul 24 $10,189 $9,565 $10,208 Aug 24 $10,255 $9,702 $10,273 Sep 24 $10,319 $9,832 $10,338 Oct 24 $10,334 $9,591 $10,353 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.71 % 0.70 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.89 ) ICE 2025 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.76 0.74 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 2,061,839,866 |
| Holdings Count | Holding | 31 |
| Advisory Fees Paid, Amount | $ 1,468,294 |
| InvestmentCompanyPortfolioTurnover | 1% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $2,061,839,866 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 31 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,468,294 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.7 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 0.00 0.25%, 05/31/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.1 % 2.88%, 06/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.8 0.38%, 11/30/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.8 3.00%, 09/30/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.4 2.75%, 05/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.1 0.25%, 08/31/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.8 2.88%, 07/31/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 3.00%, 10/31/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 1.75%, 03/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.5 1.50%, 02/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000217187 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2026 Term Treasury ETF |
| Trading Symbol | IBTG |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2026 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2026 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 6.12%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2026 Maturity US Treasury Index returned 6.18%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund ICE BofA US Broad Market Index ICE 2026 Maturity US Treasury Index Jan 20 $10,000 $10,000 $10,000 Feb 20 $10,132 $10,071 $10,131 Mar 20 $10,444 $9,999 $10,443 Apr 20 $10,472 $10,174 $10,475 May 20 $10,501 $10,226 $10,503 Jun 20 $10,518 $10,295 $10,521 Jul 20 $10,576 $10,453 $10,579 Aug 20 $10,546 $10,367 $10,551 Sep 20 $10,560 $10,366 $10,563 Oct 20 $10,490 $10,315 $10,495 Nov 20 $10,516 $10,416 $10,518 Dec 20 $10,528 $10,427 $10,532 Jan 21 $10,488 $10,346 $10,485 Feb 21 $10,337 $10,161 $10,313 Mar 21 $10,241 $10,054 $10,247 Apr 21 $10,299 $10,140 $10,307 May 21 $10,336 $10,171 $10,342 Jun 21 $10,322 $10,257 $10,324 Jul 21 $10,416 $10,367 $10,423 Aug 21 $10,393 $10,353 $10,398 Sep 21 $10,310 $10,254 $10,315 Oct 21 $10,222 $10,256 $10,227 Nov 21 $10,248 $10,297 $10,251 Dec 21 $10,208 $10,263 $10,211 Jan 22 $10,066 $10,048 $10,072 Feb 22 $10,009 $9,920 $10,014 Mar 22 $9,717 $9,643 $9,719 Apr 22 $9,566 $9,288 $9,568 May 22 $9,643 $9,328 $9,644 Jun 22 $9,574 $9,203 $9,577 Jul 22 $9,704 $9,416 $9,708 Aug 22 $9,486 $9,160 $9,490 Sep 22 $9,260 $8,756 $9,266 Oct 22 $9,230 $8,637 $9,236 Nov 22 $9,387 $8,950 $9,393 Dec 22 $9,368 $8,912 $9,386 Jan 23 $9,516 $9,180 $9,522 Feb 23 $9,355 $8,950 $9,361 Mar 23 $9,574 $9,177 $9,580 Apr 23 $9,628 $9,235 $9,634 May 23 $9,567 $9,135 $9,573 Jun 23 $9,474 $9,102 $9,481 Jul 23 $9,499 $9,094 $9,507 Aug 23 $9,524 $9,037 $9,532 Sep 23 $9,490 $8,813 $9,498 Oct 23 $9,508 $8,676 $9,517 Nov 23 $9,641 $9,057 $9,650 Dec 23 $9,772 $9,393 $9,782 Jan 24 $9,808 $9,382 $9,819 Feb 24 $9,744 $9,253 $9,756 Mar 24 $9,771 $9,331 $9,783 Apr 24 $9,724 $9,106 $9,737 May 24 $9,796 $9,260 $9,809 Jun 24 $9,852 $9,349 $9,866 Jul 24 $9,968 $9,565 $9,982 Aug 24 $10,058 $9,702 $10,072 Sep 24 $10,138 $9,832 $10,153 Oct 24 $10,090 $9,591 $10,105 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.12 % 0.19 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.89 ) ICE 2026 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.18 0.22 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 1,416,855,081 |
| Holdings Count | Holding | 33 |
| Advisory Fees Paid, Amount | $ 707,667 |
| InvestmentCompanyPortfolioTurnover | 16% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,416,855,081 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $707,667 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.5 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 1.50%, 08/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.6 % 0.75%, 03/31/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.5 1.63%, 05/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.4 0.75%, 05/31/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.1 0.75%, 04/30/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 1.13%, 10/31/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.2 1.25%, 11/30/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.8 0.50%, 02/28/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.5 0.38%, 01/31/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 4.50%, 03/31/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000217188 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2027 Term Treasury ETF |
| Trading Symbol | IBTH |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2027 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2027 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 6.84%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2027 Maturity US Treasury Index returned 6.90%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: February 25, 2020 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2027 Maturity US Treasury Index Jan 20 $10,000 $10,000 $10,000 Feb 20 $10,148 $10,071 $10,145 Mar 20 $10,487 $9,999 $10,490 Apr 20 $10,524 $10,174 $10,525 May 20 $10,545 $10,226 $10,545 Jun 20 $10,554 $10,295 $10,556 Jul 20 $10,623 $10,453 $10,628 Aug 20 $10,573 $10,367 $10,579 Sep 20 $10,590 $10,366 $10,600 Oct 20 $10,492 $10,315 $10,501 Nov 20 $10,517 $10,416 $10,528 Dec 20 $10,520 $10,427 $10,530 Jan 21 $10,456 $10,346 $10,458 Feb 21 $10,248 $10,161 $10,224 Mar 21 $10,096 $10,054 $10,111 Apr 21 $10,178 $10,140 $10,192 May 21 $10,222 $10,171 $10,238 Jun 21 $10,244 $10,257 $10,258 Jul 21 $10,385 $10,367 $10,398 Aug 21 $10,352 $10,353 $10,367 Sep 21 $10,234 $10,254 $10,250 Oct 21 $10,144 $10,256 $10,161 Nov 21 $10,200 $10,297 $10,216 Dec 21 $10,155 $10,263 $10,174 Jan 22 $9,994 $10,048 $10,011 Feb 22 $9,949 $9,920 $9,963 Mar 22 $9,623 $9,643 $9,635 Apr 22 $9,413 $9,288 $9,426 May 22 $9,483 $9,328 $9,497 Jun 22 $9,406 $9,203 $9,420 Jul 22 $9,579 $9,416 $9,594 Aug 22 $9,329 $9,160 $9,342 Sep 22 $9,054 $8,756 $9,067 Oct 22 $9,011 $8,637 $9,023 Nov 22 $9,203 $8,950 $9,215 Dec 22 $9,161 $8,912 $9,187 Jan 23 $9,343 $9,180 $9,356 Feb 23 $9,141 $8,950 $9,154 Mar 23 $9,390 $9,177 $9,403 Apr 23 $9,455 $9,235 $9,469 May 23 $9,372 $9,135 $9,386 Jun 23 $9,261 $9,102 $9,275 Jul 23 $9,282 $9,094 $9,297 Aug 23 $9,291 $9,037 $9,305 Sep 23 $9,219 $8,813 $9,233 Oct 23 $9,202 $8,676 $9,217 Nov 23 $9,389 $9,057 $9,405 Dec 23 $9,562 $9,393 $9,579 Jan 24 $9,594 $9,382 $9,612 Feb 24 $9,496 $9,253 $9,514 Mar 24 $9,526 $9,331 $9,545 Apr 24 $9,432 $9,106 $9,450 May 24 $9,525 $9,260 $9,544 Jun 24 $9,593 $9,349 $9,613 Jul 24 $9,748 $9,565 $9,768 Aug 24 $9,850 $9,702 $9,871 Sep 24 $9,938 $9,832 $9,960 Oct 24 $9,831 $9,591 $9,853 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.84 % (0.36 )% ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.89 ) ICE 2027 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.90 (0.32 ) |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 1,053,248,007 |
| Holdings Count | Holding | 29 |
| Advisory Fees Paid, Amount | $ 541,163 |
| InvestmentCompanyPortfolioTurnover | 22% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $1,053,248,007 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 29 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $541,163 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.9 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 4.13%, 09/30/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 % 1.88%, 02/28/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 2.25%, 11/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 0.50%, 10/31/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.2 2.75%, 04/30/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 1.50%, 01/31/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.6 3.25%, 06/30/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 2.25%, 02/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.2 4.50%, 04/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 0.50%, 04/30/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000217189 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2028 Term Treasury ETF |
| Trading Symbol | IBTI |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2028 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2028 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 7.36%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2028 Maturity US Treasury Index returned 7.39%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: February 25, 2020 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2028 Maturity US Treasury Index Jan 20 $10,000 $10,000 $10,000 Feb 20 $10,159 $10,071 $10,159 Mar 20 $10,517 $9,999 $10,518 Apr 20 $10,570 $10,174 $10,570 May 20 $10,584 $10,226 $10,586 Jun 20 $10,593 $10,295 $10,593 Jul 20 $10,674 $10,453 $10,676 Aug 20 $10,597 $10,367 $10,603 Sep 20 $10,623 $10,366 $10,629 Oct 20 $10,501 $10,315 $10,509 Nov 20 $10,531 $10,416 $10,539 Dec 20 $10,515 $10,427 $10,524 Jan 21 $10,435 $10,346 $10,435 Feb 21 $10,210 $10,161 $10,181 Mar 21 $10,031 $10,054 $10,043 Apr 21 $10,117 $10,140 $10,127 May 21 $10,153 $10,171 $10,171 Jun 21 $10,208 $10,257 $10,218 Jul 21 $10,364 $10,367 $10,379 Aug 21 $10,332 $10,353 $10,344 Sep 21 $10,199 $10,254 $10,211 Oct 21 $10,111 $10,256 $10,123 Nov 21 $10,185 $10,297 $10,196 Dec 21 $10,149 $10,263 $10,159 Jan 22 $9,967 $10,048 $9,976 Feb 22 $9,927 $9,920 $9,939 Mar 22 $9,578 $9,643 $9,587 Apr 22 $9,315 $9,288 $9,325 May 22 $9,380 $9,328 $9,390 Jun 22 $9,299 $9,203 $9,308 Jul 22 $9,501 $9,416 $9,512 Aug 22 $9,208 $9,160 $9,219 Sep 22 $8,893 $8,756 $8,904 Oct 22 $8,827 $8,637 $8,839 Nov 22 $9,064 $8,950 $9,076 Dec 22 $8,996 $8,912 $9,027 Jan 23 $9,219 $9,180 $9,233 Feb 23 $8,995 $8,950 $9,008 Mar 23 $9,266 $9,177 $9,281 Apr 23 $9,335 $9,235 $9,350 May 23 $9,244 $9,135 $9,259 Jun 23 $9,126 $9,102 $9,140 Jul 23 $9,135 $9,094 $9,149 Aug 23 $9,131 $9,037 $9,145 Sep 23 $9,019 $8,813 $9,033 Oct 23 $8,971 $8,676 $8,985 Nov 23 $9,204 $9,057 $9,218 Dec 23 $9,411 $9,393 $9,426 Jan 24 $9,442 $9,382 $9,455 Feb 24 $9,317 $9,253 $9,331 Mar 24 $9,355 $9,331 $9,369 Apr 24 $9,214 $9,106 $9,228 May 24 $9,326 $9,260 $9,341 Jun 24 $9,407 $9,349 $9,423 Jul 24 $9,594 $9,565 $9,611 Aug 24 $9,701 $9,702 $9,719 Sep 24 $9,795 $9,832 $9,814 Oct 24 $9,631 $9,591 $9,649 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.36 % (0.80 )% ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.89 ) ICE 2028 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.39 (0.76 ) |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 710,269,617 |
| Holdings Count | Holding | 23 |
| Advisory Fees Paid, Amount | $ 334,295 |
| InvestmentCompanyPortfolioTurnover | 4% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $710,269,617 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $334,295 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.3 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 2.88%, 05/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.4 % 1.25%, 06/30/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.4 1.00%, 07/31/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.9 2.88%, 08/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.2 1.25%, 09/30/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.4 1.38%, 10/31/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.0 1.13%, 02/29/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.5 0.75%, 01/31/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.3 3.13%, 11/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.2 2.75%, 02/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.9 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000217190 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2029 Term Treasury ETF |
| Trading Symbol | IBTJ |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2029 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2029 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 8.09%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2029 Maturity US Treasury Index returned 8.13%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: February 25, 2020 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2029 Maturity US Treasury Index Jan 20 $10,000 $10,000 $10,000 Feb 20 $10,176 $10,071 $10,175 Mar 20 $10,571 $9,999 $10,570 Apr 20 $10,644 $10,174 $10,647 May 20 $10,646 $10,226 $10,650 Jun 20 $10,660 $10,295 $10,661 Jul 20 $10,751 $10,453 $10,756 Aug 20 $10,650 $10,367 $10,655 Sep 20 $10,680 $10,366 $10,686 Oct 20 $10,535 $10,315 $10,542 Nov 20 $10,565 $10,416 $10,573 Dec 20 $10,538 $10,427 $10,546 Jan 21 $10,430 $10,346 $10,428 Feb 21 $10,183 $10,161 $10,148 Mar 21 $9,960 $10,054 $9,968 Apr 21 $10,052 $10,140 $10,063 May 21 $10,090 $10,171 $10,100 Jun 21 $10,174 $10,257 $10,183 Jul 21 $10,357 $10,367 $10,367 Aug 21 $10,319 $10,353 $10,331 Sep 21 $10,171 $10,254 $10,183 Oct 21 $10,104 $10,256 $10,117 Nov 21 $10,191 $10,297 $10,203 Dec 21 $10,163 $10,263 $10,173 Jan 22 $9,960 $10,048 $9,973 Feb 22 $9,925 $9,920 $9,937 Mar 22 $9,560 $9,643 $9,571 Apr 22 $9,259 $9,288 $9,269 May 22 $9,326 $9,328 $9,337 Jun 22 $9,243 $9,203 $9,252 Jul 22 $9,467 $9,416 $9,476 Aug 22 $9,148 $9,160 $9,157 Sep 22 $8,799 $8,756 $8,807 Oct 22 $8,718 $8,637 $8,727 Nov 22 $8,978 $8,950 $8,984 Dec 22 $8,887 $8,912 $8,913 Jan 23 $9,128 $9,180 $9,138 Feb 23 $8,887 $8,950 $8,895 Mar 23 $9,177 $9,177 $9,187 Apr 23 $9,243 $9,235 $9,253 May 23 $9,147 $9,135 $9,158 Jun 23 $9,026 $9,102 $9,038 Jul 23 $9,018 $9,094 $9,030 Aug 23 $8,999 $9,037 $9,011 Sep 23 $8,846 $8,813 $8,858 Oct 23 $8,765 $8,676 $8,777 Nov 23 $9,044 $9,057 $9,057 Dec 23 $9,287 $9,393 $9,301 Jan 24 $9,317 $9,382 $9,332 Feb 24 $9,178 $9,253 $9,193 Mar 24 $9,224 $9,331 $9,238 Apr 24 $9,049 $9,106 $9,064 May 24 $9,173 $9,260 $9,187 Jun 24 $9,264 $9,349 $9,279 Jul 24 $9,470 $9,565 $9,486 Aug 24 $9,581 $9,702 $9,597 Sep 24 $9,680 $9,832 $9,697 Oct 24 $9,475 $9,591 $9,490 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.09 % (1.15 )% ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (0.89 ) ICE 2029 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.13 (1.11 ) |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 367,608,356 |
| Holdings Count | Holding | 23 |
| Advisory Fees Paid, Amount | $ 169,897 |
| InvestmentCompanyPortfolioTurnover | 35% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $367,608,356 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $169,897 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 35% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.2 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 2.63%, 02/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.1 % 4.00%, 01/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.6 1.75%, 01/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.1 2.88%, 04/30/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.1 3.25%, 06/30/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.9 4.25%, 02/28/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.8 3.13%, 08/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 2.63%, 07/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 2.75%, 05/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.1 4.00%, 07/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.7 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000220170 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2030 Term Treasury ETF |
| Trading Symbol | IBTK |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2030 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2030 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 8.76%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2030 Maturity US Treasury Index returned 8.82%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 14, 2020 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2030 Maturity US Treasury Index Jun 20 $10,000 $10,000 $10,000 Jul 20 $10,072 $10,086 $10,071 Aug 20 $9,948 $10,003 $9,947 Sep 20 $9,977 $10,002 $9,976 Oct 20 $9,819 $9,952 $9,819 Nov 20 $9,848 $10,049 $9,849 Dec 20 $9,802 $10,061 $9,801 Jan 21 $9,666 $9,982 $9,653 Feb 21 $9,403 $9,804 $9,354 Mar 21 $9,144 $9,700 $9,141 Apr 21 $9,246 $9,784 $9,246 May 21 $9,284 $9,813 $9,286 Jun 21 $9,407 $9,896 $9,406 Jul 21 $9,604 $10,003 $9,607 Aug 21 $9,567 $9,989 $9,568 Sep 21 $9,406 $9,894 $9,408 Oct 21 $9,369 $9,896 $9,373 Nov 21 $9,474 $9,935 $9,477 Dec 21 $9,441 $9,902 $9,442 Jan 22 $9,227 $9,694 $9,229 Feb 22 $9,187 $9,571 $9,191 Mar 22 $8,819 $9,304 $8,822 Apr 22 $8,465 $8,962 $8,469 May 22 $8,528 $9,000 $8,533 Jun 22 $8,446 $8,880 $8,451 Jul 22 $8,692 $9,085 $8,697 Aug 22 $8,368 $8,838 $8,373 Sep 22 $7,999 $8,448 $8,005 Oct 22 $7,899 $8,333 $7,905 Nov 22 $8,168 $8,635 $8,174 Dec 22 $8,051 $8,599 $8,081 Jan 23 $8,325 $8,857 $8,332 Feb 23 $8,058 $8,635 $8,067 Mar 23 $8,343 $8,854 $8,354 Apr 23 $8,410 $8,911 $8,421 May 23 $8,302 $8,814 $8,314 Jun 23 $8,186 $8,782 $8,196 Jul 23 $8,160 $8,774 $8,170 Aug 23 $8,123 $8,720 $8,134 Sep 23 $7,937 $8,503 $7,947 Oct 23 $7,830 $8,371 $7,840 Nov 23 $8,117 $8,738 $8,129 Dec 23 $8,375 $9,062 $8,386 Jan 24 $8,391 $9,052 $8,404 Feb 24 $8,246 $8,928 $8,258 Mar 24 $8,297 $9,003 $8,309 Apr 24 $8,104 $8,786 $8,117 May 24 $8,229 $8,935 $8,242 Jun 24 $8,324 $9,020 $8,338 Jul 24 $8,536 $9,229 $8,551 Aug 24 $8,645 $9,361 $8,660 Sep 24 $8,746 $9,486 $8,762 Oct 24 $8,515 $9,254 $8,532 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.76 % (3.67 )% ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (1.79 ) ICE 2030 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.82 (3.63 ) |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 283,067,821 |
| Holdings Count | Holding | 16 |
| Advisory Fees Paid, Amount | $ 156,036 |
| InvestmentCompanyPortfolioTurnover | 15% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $283,067,821 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $156,036 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.3 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 0.63%, 08/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.8 % 0.63%, 05/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13.3 0.88%, 11/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.2 1.50%, 02/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.6 4.00%, 02/28/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.3 4.63%, 09/30/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.2 4.38%, 11/30/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.8 3.50%, 04/30/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.8 3.75%, 05/31/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.7 4.13%, 08/31/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.5 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000228602 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2031 Term Treasury ETF |
| Trading Symbol | IBTL |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2031 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2031 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.22%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2031 Maturity US Treasury Index returned 9.26%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 13, 2021 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2031 Maturity US Treasury Index Jun 21 $10,000 $10,000 $10,000 Jul 21 $10,169 $10,095 $10,170 Aug 21 $10,128 $10,081 $10,130 Sep 21 $9,952 $9,985 $9,954 Oct 21 $9,919 $9,987 $9,922 Nov 21 $10,051 $10,026 $10,054 Dec 21 $9,997 $9,993 $10,002 Jan 22 $9,771 $9,784 $9,774 Feb 22 $9,730 $9,660 $9,734 Mar 22 $9,332 $9,389 $9,336 Apr 22 $8,913 $9,045 $8,918 May 22 $8,969 $9,083 $8,974 Jun 22 $8,884 $8,961 $8,890 Jul 22 $9,165 $9,169 $9,171 Aug 22 $8,805 $8,920 $8,812 Sep 22 $8,380 $8,526 $8,386 Oct 22 $8,260 $8,410 $8,267 Nov 22 $8,563 $8,715 $8,570 Dec 22 $8,439 $8,678 $8,475 Jan 23 $8,740 $8,939 $8,749 Feb 23 $8,456 $8,715 $8,466 Mar 23 $8,762 $8,936 $8,773 Apr 23 $8,843 $8,993 $8,855 May 23 $8,712 $8,895 $8,724 Jun 23 $8,598 $8,863 $8,611 Jul 23 $8,552 $8,855 $8,564 Aug 23 $8,494 $8,800 $8,507 Sep 23 $8,241 $8,581 $8,254 Oct 23 $8,093 $8,448 $8,106 Nov 23 $8,443 $8,819 $8,458 Dec 23 $8,751 $9,146 $8,768 Jan 24 $8,761 $9,135 $8,778 Feb 24 $8,580 $9,010 $8,597 Mar 24 $8,641 $9,086 $8,659 Apr 24 $8,404 $8,867 $8,421 May 24 $8,542 $9,017 $8,560 Jun 24 $8,647 $9,103 $8,665 Jul 24 $8,885 $9,314 $8,904 Aug 24 $9,000 $9,447 $9,019 Sep 24 $9,111 $9,573 $9,131 Oct 24 $8,839 $9,339 $8,858 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.22 % (3.67 )% ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 (2.05 ) ICE 2031 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.26 (3.61 ) |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 240,512,078 |
| Holdings Count | Holding | 14 |
| Advisory Fees Paid, Amount | $ 127,230 |
| InvestmentCompanyPortfolioTurnover | 39% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $240,512,078 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $127,230 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 39% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 97.6 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes 1.25%, 08/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.6 % 1.38%, 11/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.2 1.63%, 05/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.0 1.13%, 02/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.2 4.25%, 02/28/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.4 4.13%, 03/31/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.1 4.63%, 04/30/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.8 4.00%, 01/31/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.3 4.13%, 07/31/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 3.75%, 08/31/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000236733 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2032 Term Treasury ETF |
| Trading Symbol | IBTM |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2032 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2032 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.58%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2032 Maturity US Treasury Index returned 9.66%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: July 6, 2022 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2032 Maturity US Treasury Index Jun 22 $10,000 $10,000 $10,000 Jul 22 $10,244 $10,211 $10,246 Aug 22 $9,835 $9,933 $9,836 Sep 22 $9,349 $9,495 $9,348 Oct 22 $9,184 $9,366 $9,185 Nov 22 $9,524 $9,705 $9,525 Dec 22 $9,392 $9,664 $9,425 Jan 23 $9,725 $9,955 $9,725 Feb 23 $9,416 $9,705 $9,416 Mar 23 $9,769 $9,951 $9,770 Apr 23 $9,847 $10,015 $9,848 May 23 $9,706 $9,906 $9,707 Jun 23 $9,591 $9,870 $9,592 Jul 23 $9,526 $9,862 $9,528 Aug 23 $9,446 $9,800 $9,448 Sep 23 $9,146 $9,557 $9,148 Oct 23 $8,967 $9,409 $8,969 Nov 23 $9,372 $9,821 $9,375 Dec 23 $9,731 $10,186 $9,735 Jan 24 $9,737 $10,173 $9,742 Feb 24 $9,540 $10,034 $9,545 Mar 24 $9,607 $10,119 $9,613 Apr 24 $9,322 $9,874 $9,328 May 24 $9,488 $10,042 $9,495 Jun 24 $9,607 $10,138 $9,614 Jul 24 $9,886 $10,373 $9,894 Aug 24 $10,026 $10,521 $10,035 Sep 24 $10,154 $10,661 $10,164 Oct 24 $9,826 $10,401 $9,835 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.58 % (0.75 )% ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 1.71 ICE 2032 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.66 (0.71 ) |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 250,195,955 |
| Holdings Count | Holding | 5 |
| Advisory Fees Paid, Amount | $ 138,799 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $250,195,955 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $138,799 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.5 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes, 4.13%, 11/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 26.2 % U.S. Treasury Notes, 2.88%, 05/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.8 U.S. Treasury Notes, 1.88%, 02/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.8 U.S. Treasury Notes, 2.75%, 08/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.7 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243160 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2033 Term Treasury ETF |
| Trading Symbol | IBTO |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2033 Term Treasury ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2033 Term Treasury ETF $7 0.07% |
| Expenses Paid, Amount | $ 7 |
| Expense Ratio, Percent | 0.07% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.58%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2033 Maturity US Treasury Index returned 9.63%. What contributed to performance? Bond returns were supported by an environment of slowing pricing pressures and steady growth in the United States during the reporting period. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by a 50 basis point cut, its first rate reduction since March 2020. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the Federal Reserve. (Bonds and yields move in opposite directions.) The yield on the 10-year Treasury started the period at 4.93% and ended at 4.28%. Short-term bonds (0-3 years), which are less sensitive to interest rate changes, contributed to the return of earlier dated Term Funds, while later dated Term Funds benefited from longer-dated bonds. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 27, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2033 Maturity US Treasury Index May 23 $10,000 $10,000 $10,000 Jun 23 $9,963 $9,978 $9,960 Jul 23 $9,886 $9,970 $9,884 Aug 23 $9,798 $9,908 $9,795 Sep 23 $9,464 $9,661 $9,461 Oct 23 $9,262 $9,512 $9,258 Nov 23 $9,700 $9,929 $9,696 Dec 23 $10,096 $10,297 $10,092 Jan 24 $10,085 $10,285 $10,081 Feb 24 $9,877 $10,144 $9,873 Mar 24 $9,942 $10,230 $9,939 Apr 24 $9,629 $9,983 $9,626 May 24 $9,806 $10,152 $9,803 Jun 24 $9,927 $10,249 $9,925 Jul 24 $10,215 $10,486 $10,213 Aug 24 $10,360 $10,636 $10,359 Sep 24 $10,498 $10,778 $10,497 Oct 24 $10,149 $10,515 $10,149 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.58 % 1.11 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 3.81 ICE 2033 Maturity US Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.63 1.11 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 215,285,048 |
| Holdings Count | Holding | 5 |
| Advisory Fees Paid, Amount | $ 116,879 |
| InvestmentCompanyPortfolioTurnover | 23% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $215,285,048 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $116,879 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 98.3 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Security Footnote Reference Percent of Net Assets U.S. Treasury Notes, 4.50%, 11/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 28.0 % U.S. Treasury Notes, 3.88%, 08/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.3 U.S. Treasury Notes, 3.50%, 02/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.6 U.S. Treasury Notes, 3.38%, 05/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.4 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000234589 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds 2028 Term High Yield and Income ETF |
| Trading Symbol | IBHH |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds 2028 Term High Yield and Income ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds 2028 Term High Yield and Income ETF $38 0.35% |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.35% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 15.60%. For the same period, the Bloomberg U.S. Universal Index returned 11.20% and the Bloomberg 2028 Term High Yield and Income Index returned 16.04%. What contributed to performance? U.S. corporate bonds registered solid gains during the reporting period, supported by an environment of slowing pricing pressures and steady growth in the United States. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered interest rates by a 50 basis point cut, its first rate reduction since March 2020. Both Term Maturity Funds with earlier maturity dates and Term Maturity Funds with later maturity dates, consumer cyclicals and consumer non-cyclical bonds in the industrial sector contributed the most to returns. Allocations to financial bonds also contributed to performance. Additionally, Term Maturity Funds with earlier maturity dates benefited from bonds with credit ratings near the lower range of investment grade and the higher end of high yield (those rated Baa and Ba by Moody’s.) Term Maturity Funds with later maturity dates were supported by bonds with credit ratings that were on the lower risk spectrum of high yield (those rated Ba and B by Moody’s), as credit spreads (the difference in the yield between two bonds with similar maturities but different credit qualities) narrowed during the reporting period. What detracted from performance? During the reporting period, there were no significant detractors from the Fund’s performance. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund Bloomberg U.S. Universal Index Bloomberg 2028 Term High Yield and Income Index Feb 22 $10,000 $10,000 $10,000 Mar 22 $10,071 $9,835 $10,052 Apr 22 $9,681 $9,468 $9,665 May 22 $9,686 $9,520 $9,672 Jun 22 $8,990 $9,330 $8,969 Jul 22 $9,562 $9,564 $9,546 Aug 22 $9,294 $9,316 $9,278 Sep 22 $8,906 $8,914 $8,894 Oct 22 $9,190 $8,817 $9,183 Nov 22 $9,353 $9,145 $9,343 Dec 22 $9,278 $9,114 $9,273 Jan 23 $9,629 $9,397 $9,627 Feb 23 $9,477 $9,166 $9,479 Mar 23 $9,607 $9,381 $9,600 Apr 23 $9,707 $9,438 $9,707 May 23 $9,602 $9,341 $9,605 Jun 23 $9,746 $9,326 $9,746 Jul 23 $9,879 $9,335 $9,885 Aug 23 $9,899 $9,279 $9,903 Sep 23 $9,765 $9,058 $9,780 Oct 23 $9,678 $8,922 $9,693 Nov 23 $10,113 $9,323 $10,133 Dec 23 $10,486 $9,677 $10,509 Jan 24 $10,478 $9,654 $10,502 Feb 24 $10,512 $9,538 $10,538 Mar 24 $10,622 $9,632 $10,658 Apr 24 $10,543 $9,407 $10,577 May 24 $10,632 $9,562 $10,671 Jun 24 $10,729 $9,650 $10,777 Jul 24 $10,912 $9,869 $10,963 Aug 24 $11,068 $10,014 $11,121 Sep 24 $11,225 $10,151 $11,282 Oct 24 $11,188 $9,921 $11,248 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.60 % 4.33 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 (0.30 ) Bloomberg 2028 Term High Yield and Income Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.04 4.55 |
| Performance Inception Date | Mar. 08, 2022 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 141,084,471 |
| Holdings Count | Holding | 326 |
| Advisory Fees Paid, Amount | $ 266,157 |
| InvestmentCompanyPortfolioTurnover | 13% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $141,084,471 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 326 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $266,157 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 13% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 % Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.9 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 51.9 Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.8 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Security Footnote Reference Percent of Net Assets Uniti Group LP, 10.50%, 02/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 % Tenet Healthcare Corp., 6.13%, 10/01/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 CCO Holdings LLC, 5.00%, 02/01/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Venture Global LNG, Inc., 8.13%, 06/01/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Carnival Holdings Bermuda Ltd., 10.38%, 05/01/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 TransDigm, Inc., 6.75%, 08/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Organon & Co., 4.13%, 04/30/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Sirius XM Radio, Inc., 4.00%, 07/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Olympus Water US Holding Corp., 9.75%, 11/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Tenneco, Inc., 8.00%, 11/17/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000234590 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds 2029 Term High Yield and Income ETF |
| Trading Symbol | IBHI |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds 2029 Term High Yield and Income ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds 2029 Term High Yield and Income ETF $38 0.35% |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.35% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 17.88%. For the same period, the Bloomberg U.S. Universal Index returned 11.20% and the Bloomberg 2029 Term High Yield and Income Index returned 18.07%. What contributed to performance? U.S. corporate bonds registered solid gains during the reporting period, supported by an environment of slowing pricing pressures and steady growth in the United States. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered interest rates by a 50 basis point cut, its first rate reduction since March 2020. Both Term Maturity Funds with earlier maturity dates and Term Maturity Funds with later maturity dates, consumer cyclicals and consumer non-cyclical bonds in the industrial sector contributed the most to returns. Allocations to financial bonds also contributed to performance. Additionally, Term Maturity Funds with earlier maturity dates benefited from bonds with credit ratings near the lower range of investment grade and the higher end of high yield (those rated Baa and Ba by Moody’s.) Term Maturity Funds with later maturity dates were supported by bonds with credit ratings that were on the lower risk spectrum of high yield (those rated Ba and B by Moody’s), as credit spreads (the difference in the yield between two bonds with similar maturities but different credit qualities) narrowed during the reporting period. What detracted from performance? During the reporting period, there were no significant detractors from the Fund’s performance. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund Bloomberg U.S. Universal Index Bloomberg 2029 Term High Yield and Income Index Feb 22 $10,000 $10,000 $10,000 Mar 22 $10,041 $9,835 $10,027 Apr 22 $9,576 $9,468 $9,559 May 22 $9,603 $9,520 $9,585 Jun 22 $8,848 $9,330 $8,831 Jul 22 $9,483 $9,564 $9,477 Aug 22 $9,203 $9,316 $9,201 Sep 22 $8,722 $8,914 $8,721 Oct 22 $8,994 $8,817 $8,987 Nov 22 $9,201 $9,145 $9,189 Dec 22 $9,108 $9,114 $9,102 Jan 23 $9,495 $9,397 $9,492 Feb 23 $9,320 $9,166 $9,319 Mar 23 $9,473 $9,381 $9,473 Apr 23 $9,586 $9,438 $9,589 May 23 $9,455 $9,341 $9,454 Jun 23 $9,619 $9,326 $9,620 Jul 23 $9,751 $9,335 $9,758 Aug 23 $9,751 $9,279 $9,759 Sep 23 $9,589 $9,058 $9,597 Oct 23 $9,474 $8,922 $9,483 Nov 23 $9,990 $9,323 $9,995 Dec 23 $10,414 $9,677 $10,424 Jan 24 $10,426 $9,654 $10,441 Feb 24 $10,433 $9,538 $10,443 Mar 24 $10,579 $9,632 $10,595 Apr 24 $10,458 $9,407 $10,471 May 24 $10,576 $9,562 $10,585 Jun 24 $10,687 $9,650 $10,699 Jul 24 $10,898 $9,869 $10,909 Aug 24 $11,075 $10,014 $11,092 Sep 24 $11,227 $10,151 $11,250 Oct 24 $11,168 $9,921 $11,196 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.88 % 4.25 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 (0.30 ) Bloomberg 2029 Term High Yield and Income Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.07 4.36 |
| Performance Inception Date | Mar. 08, 2022 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 83,772,148 |
| Holdings Count | Holding | 447 |
| Advisory Fees Paid, Amount | $ 145,149 |
| InvestmentCompanyPortfolioTurnover | 20% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $83,772,148 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 447 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $145,149 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.5 % Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 33.7 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 45.7 Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.7 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.0 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Security Footnote Reference Percent of Net Assets Medline Borrower LP, 3.88%, 04/01/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 % Cloud Software Group, Inc., 6.50%, 03/31/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Cloud Software Group, Inc., 9.00%, 09/30/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Venture Global LNG, Inc., 9.50%, 02/01/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 American Airlines, Inc., 5.75%, 04/20/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 TransDigm, Inc., 6.38%, 03/01/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Neptune Bidco US, Inc., 9.29%, 04/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Medline Borrower LP, 5.25%, 10/01/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Staples, Inc., 10.75%, 09/01/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.7 Rakuten Group, Inc., 9.75%, 04/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.7 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243158 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds 2030 Term High Yield and Income ETF |
| Trading Symbol | IBHJ |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds 2030 Term High Yield and Income ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds 2030 Term High Yield and Income ETF $38 0.35% |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.35% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 17.12%. For the same period, the Bloomberg U.S. Universal Index returned 11.20% and the Bloomberg 2030 Term High Yield and Income Index returned 17.29%. What contributed to performance? U.S. corporate bonds registered solid gains during the reporting period, supported by an environment of slowing pricing pressures and steady growth in the United States. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered interest rates by a 50 basis point cut, its first rate reduction since March 2020. Both Term Maturity Funds with earlier maturity dates and Term Maturity Funds with later maturity dates, consumer cyclicals and consumer non-cyclical bonds in the industrial sector contributed the most to returns. Allocations to financial bonds also contributed to performance. Additionally, Term Maturity Funds with earlier maturity dates benefited from bonds with credit ratings near the lower range of investment grade and the higher end of high yield (those rated Baa and Ba by Moody’s.) Term Maturity Funds with later maturity dates were supported by bonds with credit ratings that were on the lower risk spectrum of high yield (those rated Ba and B by Moody’s), as credit spreads (the difference in the yield between two bonds with similar maturities but different credit qualities) narrowed during the reporting period. What detracted from performance? During the reporting period, there were no significant detractors from the Fund’s performance. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund Bloomberg U.S. Universal Index Bloomberg 2030 Term High Yield and Income Index May 23 $10,000 $10,000 $10,000 Jun 23 $10,043 $9,968 $10,040 Jul 23 $10,166 $9,978 $10,164 Aug 23 $10,172 $9,918 $10,171 Sep 23 $9,961 $9,681 $9,963 Oct 23 $9,844 $9,535 $9,849 Nov 23 $10,400 $9,965 $10,409 Dec 23 $10,802 $10,343 $10,811 Jan 24 $10,807 $10,318 $10,814 Feb 24 $10,779 $10,194 $10,790 Mar 24 $10,944 $10,294 $10,953 Apr 24 $10,842 $10,054 $10,845 May 24 $10,964 $10,220 $10,970 Jun 24 $11,062 $10,314 $11,074 Jul 24 $11,283 $10,548 $11,296 Aug 24 $11,493 $10,703 $11,511 Sep 24 $11,650 $10,850 $11,671 Oct 24 $11,530 $10,604 $11,552 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.12 % 11.02 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 4.41 Bloomberg 2030 Term High Yield and Income Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.29 11.21 |
| Performance Inception Date | Jun. 21, 2023 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 38,202,904 |
| Holdings Count | Holding | 214 |
| Advisory Fees Paid, Amount | $ 72,480 |
| InvestmentCompanyPortfolioTurnover | 20% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $38,202,904 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 214 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $72,480 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 % Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 39.5 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 44.1 Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.4 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.0 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Security Footnote Reference Percent of Net Assets HUB International Ltd., 7.25%, 06/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.1 % EMRLD Borrower LP, 6.63%, 12/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 Intelsat Jackson Holdings SA, 6.50%, 03/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.7 1011778 BC ULC, 4.00%, 10/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.6 CCO Holdings LLC, 4.75%, 03/01/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.6 DaVita, Inc., 4.63%, 06/01/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 CCO Holdings LLC, 4.50%, 08/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 AthenaHealth Group, Inc., 6.50%, 02/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.3 Caesars Entertainment, Inc., 7.00%, 02/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Tenet Healthcare Corp., 6.13%, 06/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.2 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243457 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2025 Term TIPS ETF |
| Trading Symbol | IBIB |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2025 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2025 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 5.98%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2025 Maturity US Inflation-Linked Treasury Index returned 6.07%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 13, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2025 Maturity US Inflation-Linked Treasury Index Sep 23 $9,979 $9,820 $9,980 Oct 23 $10,033 $9,668 $10,036 Nov 23 $10,099 $10,092 $10,103 Dec 23 $10,162 $10,466 $10,165 Jan 24 $10,207 $10,454 $10,211 Feb 24 $10,244 $10,311 $10,249 Mar 24 $10,294 $10,397 $10,302 Apr 24 $10,357 $10,147 $10,366 May 24 $10,408 $10,318 $10,418 Jun 24 $10,438 $10,417 $10,448 Jul 24 $10,466 $10,658 $10,476 Aug 24 $10,517 $10,811 $10,527 Sep 24 $10,588 $10,955 $10,600 Oct 24 $10,633 $10,687 $10,645 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.98 % 5.57 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.06 ICE 2025 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.07 5.68 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 21,495,854 |
| Holdings Count | Holding | 6 |
| Advisory Fees Paid, Amount | $ 13,950 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $21,495,854 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $13,950 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.8 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.2 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 0.38%, 07/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.0 % U.S. Treasury Inflation Linked Notes, 0.25%, 01/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.0 U.S. Treasury Inflation Linked Notes, 0.13%, 10/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.2 U.S. Treasury Inflation Linked Notes, 0.13%, 04/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 17.5 U.S. Treasury Inflation Linked Bonds, 2.38%, 01/15/25 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 15.1 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243458 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2026 Term TIPS ETF |
| Trading Symbol | IBIC |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2026 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2026 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 6.60%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2026 Maturity US Inflation-Linked Treasury Index returned 6.69%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 13, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2026 Maturity US Inflation-Linked Treasury Index Sep 23 $9,953 $9,820 $9,954 Oct 23 $10,003 $9,668 $10,006 Nov 23 $10,108 $10,092 $10,111 Dec 23 $10,207 $10,466 $10,210 Jan 24 $10,255 $10,454 $10,259 Feb 24 $10,245 $10,311 $10,250 Mar 24 $10,289 $10,397 $10,297 Apr 24 $10,304 $10,147 $10,313 May 24 $10,390 $10,318 $10,400 Jun 24 $10,438 $10,417 $10,448 Jul 24 $10,505 $10,658 $10,515 Aug 24 $10,570 $10,811 $10,580 Sep 24 $10,668 $10,955 $10,679 Oct 24 $10,663 $10,687 $10,675 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.60 % 5.84 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.06 ICE 2026 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6.69 5.94 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 20,351,075 |
| Holdings Count | Holding | 6 |
| Advisory Fees Paid, Amount | $ 14,884 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $20,351,075 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $14,884 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.8 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.2 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 0.13%, 10/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.3 % U.S. Treasury Inflation Linked Notes, 0.13%, 07/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.6 U.S. Treasury Inflation Linked Notes, 0.63%, 01/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.5 U.S. Treasury Inflation Linked Notes, 0.13%, 04/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 18.5 U.S. Treasury Inflation Linked Bonds, 2.00%, 01/15/26 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.9 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243459 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2027 Term TIPS ETF |
| Trading Symbol | IBID |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2027 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2027 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 7.27%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2027 Maturity US Inflation-Linked Treasury Index returned 7.36%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 13, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2027 Maturity US Inflation-Linked Treasury Index Sep 23 $9,932 $9,820 $9,934 Oct 23 $9,956 $9,668 $9,959 Nov 23 $10,094 $10,092 $10,097 Dec 23 $10,240 $10,466 $10,244 Jan 24 $10,288 $10,454 $10,292 Feb 24 $10,237 $10,311 $10,243 Mar 24 $10,287 $10,397 $10,295 Apr 24 $10,260 $10,147 $10,269 May 24 $10,369 $10,318 $10,379 Jun 24 $10,439 $10,417 $10,449 Jul 24 $10,551 $10,658 $10,561 Aug 24 $10,618 $10,811 $10,629 Sep 24 $10,733 $10,955 $10,744 Oct 24 $10,679 $10,687 $10,692 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.27 % 5.98 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.06 ICE 2027 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.36 6.09 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 19,174,791 |
| Holdings Count | Holding | 6 |
| Advisory Fees Paid, Amount | $ 13,843 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $19,174,791 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 6 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $13,843 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation Five largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.7 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 1.63%, 10/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.9 % U.S. Treasury Inflation Linked Notes, 0.13%, 04/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 23.9 U.S. Treasury Inflation Linked Notes, 0.38%, 07/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 21.4 U.S. Treasury Inflation Linked Notes, 0.38%, 01/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.4 U.S. Treasury Inflation Linked Bonds, 2.38%, 01/15/27 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.1 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243460 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2028 Term TIPS ETF |
| Trading Symbol | IBIE |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2028 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2028 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 7.60%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2028 Maturity US Inflation-Linked Treasury Index returned 7.64%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 13, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2028 Maturity US Inflation-Linked Treasury Index Sep 23 $9,908 $9,820 $9,910 Oct 23 $9,909 $9,668 $9,912 Nov 23 $10,074 $10,092 $10,076 Dec 23 $10,260 $10,466 $10,263 Jan 24 $10,307 $10,454 $10,306 Feb 24 $10,222 $10,311 $10,223 Mar 24 $10,282 $10,397 $10,286 Apr 24 $10,211 $10,147 $10,216 May 24 $10,342 $10,318 $10,349 Jun 24 $10,421 $10,417 $10,427 Jul 24 $10,578 $10,658 $10,583 Aug 24 $10,638 $10,811 $10,644 Sep 24 $10,766 $10,955 $10,773 Oct 24 $10,661 $10,687 $10,669 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.60 % 5.82 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.06 ICE 2028 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.64 5.88 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 20,449,476 |
| Holdings Count | Holding | 7 |
| Advisory Fees Paid, Amount | $ 13,928 |
| InvestmentCompanyPortfolioTurnover | 10% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $20,449,476 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $13,928 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10% |
| Holdings [Text Block] | Credit quality allocation Five largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.3 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.7 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 1.25%, 04/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.1 % U.S. Treasury Inflation Linked Notes, 2.38%, 10/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.4 U.S. Treasury Inflation Linked Notes, 0.50%, 01/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.6 U.S. Treasury Inflation Linked Notes, 0.75%, 07/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.2 U.S. Treasury Inflation Linked Bonds, 1.75%, 01/15/28 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.3 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243461 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2029 Term TIPS ETF |
| Trading Symbol | IBIF |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2029 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2029 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 8.02%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2029 Maturity US Inflation-Linked Treasury Index returned 8.10%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 19, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2029 Maturity US Inflation-Linked Treasury Index Sep 23 $9,914 $9,873 $9,915 Oct 23 $9,894 $9,720 $9,896 Nov 23 $10,096 $10,146 $10,098 Dec 23 $10,323 $10,523 $10,327 Jan 24 $10,374 $10,510 $10,378 Feb 24 $10,261 $10,366 $10,266 Mar 24 $10,329 $10,454 $10,337 Apr 24 $10,236 $10,201 $10,244 May 24 $10,381 $10,374 $10,389 Jun 24 $10,466 $10,473 $10,474 Jul 24 $10,646 $10,716 $10,654 Aug 24 $10,709 $10,869 $10,716 Sep 24 $10,838 $11,014 $10,847 Oct 24 $10,688 $10,745 $10,697 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.02 % 6.14 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.66 ICE 2029 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8.10 6.23 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 17,929,938 |
| Holdings Count | Holding | 7 |
| Advisory Fees Paid, Amount | $ 12,084 |
| InvestmentCompanyPortfolioTurnover | 57% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $17,929,938 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $12,084 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 57% |
| Holdings [Text Block] | Credit quality allocation Five largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.8 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.2 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 2.13%, 04/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 27.5 % U.S. Treasury Inflation Linked Notes, 0.25%, 07/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 19.3 U.S. Treasury Inflation Linked Notes, 0.88%, 01/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16.8 U.S. Treasury Inflation Linked Notes, 1.63%, 10/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.5 U.S. Treasury Inflation Linked Bonds, 3.88%, 04/15/29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.5 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243462 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2030 Term TIPS ETF |
| Trading Symbol | IBIG |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2030 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2030 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.03%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2030 Maturity US Inflation-Linked Treasury Index returned 9.12%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 19, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2030 Maturity US Inflation-Linked Treasury Index Sep 23 $9,861 $9,873 $9,861 Oct 23 $9,801 $9,720 $9,802 Nov 23 $10,065 $10,146 $10,067 Dec 23 $10,335 $10,523 $10,338 Jan 24 $10,404 $10,510 $10,407 Feb 24 $10,243 $10,366 $10,247 Mar 24 $10,332 $10,454 $10,340 Apr 24 $10,185 $10,201 $10,193 May 24 $10,360 $10,374 $10,369 Jun 24 $10,443 $10,473 $10,452 Jul 24 $10,656 $10,716 $10,664 Aug 24 $10,739 $10,869 $10,747 Sep 24 $10,880 $11,014 $10,890 Oct 24 $10,685 $10,745 $10,696 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.03 % 6.12 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.66 ICE 2030 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.12 6.22 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 16,650,536 |
| Holdings Count | Holding | 3 |
| Advisory Fees Paid, Amount | $ 11,294 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $16,650,536 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $11,294 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 100.0 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 0.13%, 07/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 52.4 % U.S. Treasury Inflation Linked Notes, 0.13%, 01/15/30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 47.6 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243463 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2031 Term TIPS ETF |
| Trading Symbol | IBIH |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2031 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2031 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.47%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2031 Maturity US Inflation-Linked Treasury Index returned 9.56%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 19, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2031 Maturity US Inflation-Linked Treasury Index Sep 23 $9,839 $9,873 $9,839 Oct 23 $9,746 $9,720 $9,747 Nov 23 $10,049 $10,146 $10,051 Dec 23 $10,354 $10,523 $10,357 Jan 24 $10,426 $10,510 $10,429 Feb 24 $10,246 $10,366 $10,251 Mar 24 $10,331 $10,454 $10,339 Apr 24 $10,151 $10,201 $10,159 May 24 $10,335 $10,374 $10,344 Jun 24 $10,428 $10,473 $10,437 Jul 24 $10,658 $10,716 $10,666 Aug 24 $10,749 $10,869 $10,757 Sep 24 $10,899 $11,014 $10,909 Oct 24 $10,668 $10,745 $10,679 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.47 % 5.97 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.66 ICE 2031 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.56 6.07 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 16,629,035 |
| Holdings Count | Holding | 3 |
| Advisory Fees Paid, Amount | $ 9,667 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $16,629,035 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $9,667 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 100.0 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 0.13%, 07/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 50.4 % U.S. Treasury Inflation Linked Notes, 0.13%, 01/15/31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 49.6 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243464 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2032 Term TIPS ETF |
| Trading Symbol | IBII |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2032 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2032 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.78%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2032 Maturity US Inflation-Linked Treasury Index returned 9.88%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 19, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2032 Maturity US Inflation-Linked Treasury Index Sep 23 $9,825 $9,873 $9,825 Oct 23 $9,708 $9,720 $9,709 Nov 23 $10,036 $10,146 $10,038 Dec 23 $10,372 $10,523 $10,376 Jan 24 $10,427 $10,510 $10,431 Feb 24 $10,250 $10,366 $10,256 Mar 24 $10,334 $10,454 $10,343 Apr 24 $10,124 $10,201 $10,133 May 24 $10,317 $10,374 $10,327 Jun 24 $10,415 $10,473 $10,425 Jul 24 $10,659 $10,716 $10,667 Aug 24 $10,751 $10,869 $10,760 Sep 24 $10,920 $11,014 $10,930 Oct 24 $10,658 $10,745 $10,668 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.78 % 5.88 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.66 ICE 2032 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.88 5.97 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 11,410,701 |
| Holdings Count | Holding | 4 |
| Advisory Fees Paid, Amount | $ 8,957 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $11,410,701 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $8,957 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.8 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.2 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 0.63%, 07/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 47.6 % U.S. Treasury Inflation Linked Notes, 0.13%, 01/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 44.4 U.S. Treasury Inflation Linked Bonds, 3.38%, 04/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 7.8 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243456 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Oct 2033 Term TIPS ETF |
| Trading Symbol | IBIJ |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Oct 2033 Term TIPS ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Oct 2033 Term TIPS ETF $10 0.10% |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 9.84%. For the same period, the ICE BofA US Broad Market Index returned 10.55% and the ICE 2033 Maturity US Inflation-Linked Treasury Index returned 9.90%. What contributed to performance? In the United States, bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile during the reporting period, as investors tried to determine the next moves of the U.S. Federal Reserve. (Bond yields move inversely to bond prices.) Inflation moved steadily lower, providing policymakers with enough confidence to begin lowering interest rates. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. In September, the U.S. Federal Reserve lowered short term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the decision, Treasury yields moved lower before trending steadily higher following the rate cut. The bid-ask spread (the difference between the highest bid price and lowest ask price of a security) for Treasuries improved during the reporting period, with spreads remaining narrow and stable. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: September 19, 2023 through October 31, 2024 Initial Investment of $10,000 Fund ICE BofA US Broad Market Index ICE 2033 Maturity US Inflation-Linked Treasury Index Sep 23 $9,808 $9,873 $9,808 Oct 23 $9,665 $9,720 $9,663 Nov 23 $10,027 $10,146 $10,026 Dec 23 $10,376 $10,523 $10,374 Jan 24 $10,422 $10,510 $10,420 Feb 24 $10,244 $10,366 $10,243 Mar 24 $10,328 $10,454 $10,330 Apr 24 $10,083 $10,201 $10,085 May 24 $10,288 $10,374 $10,291 Jun 24 $10,381 $10,473 $10,384 Jul 24 $10,633 $10,716 $10,634 Aug 24 $10,722 $10,869 $10,724 Sep 24 $10,903 $11,014 $10,906 Oct 24 $10,616 $10,745 $10,620 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.84 % 5.51 % ICE BofA US Broad Market Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.55 6.66 ICE 2033 Maturity US Inflation-Linked Treasury Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 9.90 5.54 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 17,832,377 |
| Holdings Count | Holding | 3 |
| Advisory Fees Paid, Amount | $ 13,359 |
| InvestmentCompanyPortfolioTurnover | 5% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $17,832,377 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $13,359 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5% |
| Holdings [Text Block] | Credit quality allocation All holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 99.6 % Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Security Footnote Reference Percent of Net Assets U.S. Treasury Inflation Linked Notes, 1.13%, 01/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 49.9 % U.S. Treasury Inflation Linked Notes, 1.38%, 07/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 49.7 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000236700 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2032 Term Corporate ETF |
| Trading Symbol | IBDX |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2032 Term Corporate ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2032 Term Corporate ETF $11 0.10% |
| Expenses Paid, Amount | $ 11 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 14.76%. For the same period, the Bloomberg U.S. Universal Index returned 11.20% and the Bloomberg December 2032 Maturity Corporate Index returned 14.79%. What contributed to performance? U.S. corporate bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile as investors tried to determine the next moves of the U.S. Federal Reserve. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the interest rate decision meeting, Treasury yields moved lower before trending steadily higher following September’s rate cut. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. Intermediate maturity issues, those between three and five years for earlier term funds and those between seven and 10 years for later dated Term Funds, contributed to the Fund’s performance during the reporting period. For both earlier and later dated Term Funds, exposure to bonds that are on the lower range of investment grade benefited performance. At the sector level, financial issues performed well across Term Funds, particularly among banking bonds that were supported by hopes of a lower interest rate environment. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 28, 2022 through October 31, 2024 Initial Investment of $10,000 Fund Bloomberg U.S. Universal Index Bloomberg December 2032 Maturity Corporate Index May 22 $10,000 $10,000 $10,000 Jun 22 $10,082 $10,080 $10,082 Jul 22 $10,521 $10,334 $10,523 Aug 22 $10,104 $10,065 $10,106 Sep 22 $9,523 $9,631 $9,521 Oct 22 $9,466 $9,526 $9,464 Nov 22 $9,979 $9,881 $9,979 Dec 22 $9,891 $9,847 $9,923 Jan 23 $10,338 $10,153 $10,338 Feb 23 $9,962 $9,903 $9,966 Mar 23 $10,315 $10,136 $10,321 Apr 23 $10,403 $10,197 $10,412 May 23 $10,246 $10,092 $10,253 Jun 23 $10,258 $10,076 $10,265 Jul 23 $10,289 $10,086 $10,298 Aug 23 $10,220 $10,025 $10,230 Sep 23 $9,912 $9,786 $9,923 Oct 23 $9,702 $9,639 $9,711 Nov 23 $10,342 $10,073 $10,348 Dec 23 $10,813 $10,455 $10,833 Jan 24 $10,776 $10,430 $10,785 Feb 24 $10,598 $10,305 $10,607 Mar 24 $10,745 $10,406 $10,762 Apr 24 $10,473 $10,163 $10,482 May 24 $10,677 $10,331 $10,687 Jun 24 $10,762 $10,426 $10,776 Jul 24 $11,044 $10,663 $11,056 Aug 24 $11,220 $10,820 $11,232 Sep 24 $11,408 $10,968 $11,421 Oct 24 $11,134 $10,719 $11,147 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.76 % 4.69 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 3.01 Bloomberg December 2032 Maturity Corporate Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.79 4.75 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 850,866,994 |
| Holdings Count | Holding | 329 |
| Advisory Fees Paid, Amount | $ 588,410 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $850,866,994 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 329 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $588,410 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.5 % Aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 5.4 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 32.4 Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 55.4 Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.5 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Security Footnote Reference Percent of Net Assets Warnermedia Holdings, Inc., 4.28%, 03/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 % Verizon Communications, Inc., 2.36%, 03/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.5 AerCap Ireland Capital DAC, 3.30%, 01/30/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.4 Meta Platforms, Inc., 3.85%, 08/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 Sprint Capital Corp., 8.75%, 03/15/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Oracle Corp., 6.25%, 11/09/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Amazon.com, Inc., 3.60%, 04/13/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Amazon.com, Inc., 4.70%, 12/01/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 AT&T, Inc., 2.25%, 02/01/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Ford Motor Co., 3.25%, 02/12/32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000243159 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares iBonds Dec 2033 Term Corporate ETF |
| Trading Symbol | IBDY |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares iBonds Dec 2033 Term Corporate ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares iBonds Dec 2033 Term Corporate ETF $11 0.10% |
| Expenses Paid, Amount | $ 11 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 14.79%. For the same period, the Bloomberg U.S. Universal Index returned 11.20% and the Bloomberg December 2033 Maturity Corporate Index returned 14.86%. What contributed to performance? U.S. corporate bond returns were supported by an environment of slowing pricing pressures and steady growth during the reporting period. The yield on the 10-year Treasury was volatile as investors tried to determine the next moves of the U.S. Federal Reserve. Expectations for interest rate cuts grew, and those hopes were realized in September 2024 when the U.S. Federal Reserve lowered short-term interest rates by 50 basis points, its first-rate reduction since March 2020. Leading up to the interest rate decision meeting, Treasury yields moved lower before trending steadily higher following September’s rate cut. In anticipation of rate cuts, the yield curve (the difference between a shorter-term bond and a longer-term bond, most often gauged by the two-year Treasury note and the 10-year Treasury note) narrowed. Intermediate maturity issues, those between three and five years for earlier term funds and those between seven and 10 years for later dated Term Funds, contributed to the Fund’s performance during the reporting period. For both earlier and later dated Term Funds, exposure to bonds that are on the lower range of investment grade benefited performance. At the sector level, financial issues performed well across Term Funds, particularly among banking bonds that were supported by hopes of a lower interest rate environment. What detracted from performance? There were no notable detractors from the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund performance Cumulative performance: June 21, 2023 through October 31, 2024 Initial Investment of $10,000 Fund Bloomberg U.S. Universal Index Bloomberg December 2033 Maturity Corporate Index May 23 $10,000 $10,000 $10,000 Jun 23 $10,000 $9,968 $9,997 Jul 23 $10,036 $9,978 $10,033 Aug 23 $9,965 $9,918 $9,962 Sep 23 $9,656 $9,681 $9,654 Oct 23 $9,448 $9,535 $9,443 Nov 23 $10,102 $9,965 $10,098 Dec 23 $10,568 $10,343 $10,576 Jan 24 $10,531 $10,318 $10,527 Feb 24 $10,343 $10,194 $10,340 Mar 24 $10,488 $10,294 $10,494 Apr 24 $10,210 $10,054 $10,208 May 24 $10,415 $10,220 $10,413 Jun 24 $10,496 $10,314 $10,498 Jul 24 $10,781 $10,548 $10,781 Aug 24 $10,945 $10,703 $10,945 Sep 24 $11,133 $10,850 $11,134 Oct 24 $10,845 $10,604 $10,846 See “Average annual total returns” for additional information on fund performance. |
| Average Annual Return [Table Text Block] | Average annual total returns Average Annual Total Returns 1 Year Since Fund Inception Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.79 % 6.14 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 4.41 Bloomberg December 2033 Maturity Corporate Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 14.86 6.16 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 662,596,667 |
| Holdings Count | Holding | 324 |
| Advisory Fees Paid, Amount | $ 397,692 |
| InvestmentCompanyPortfolioTurnover | 1% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $662,596,667 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 324 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $397,692 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1% |
| Holdings [Text Block] | Credit quality allocation Ten largest holdings Moody's Credit Rating Footnote Reference Percent of Net Assets Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 % Aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.1 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 37.8 Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 53.0 Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.7 Short-Term and Other Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 Security Footnote Reference Percent of Net Assets Pfizer Investment Enterprises Pte. Ltd., 4.75%, 05/19/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.8 % Amgen, Inc., 5.25%, 03/02/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.6 AT&T, Inc., 2.55%, 12/01/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.1 T-Mobile USA, Inc., 5.05%, 07/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 1.0 Enbridge, Inc., 5.70%, 03/08/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.9 Philip Morris International, Inc., 5.38%, 02/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Banco Santander SA, 6.92%, 08/08/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 BP Capital Markets America, Inc., 4.81%, 02/13/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Intel Corp., 5.20%, 02/10/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 UnitedHealth Group, Inc., 5.35%, 02/15/33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. |
| C000138243 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares Yield Optimized Bond ETF |
| Trading Symbol | BYLD |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares Yield Optimized Bond ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares Yield Optimized Bond ETF $0 Footnote Reference 0.00% Footnote Reference Footnote Reference Footnote Description Footnote (a) Rounds to less than $1. Footnote (b) Rounds to less than 0.01%. Footnote (c) Excludes fees and expenses incurred indirectly as a result of investments in underlying funds. |
| Expenses Paid, Amount | $ 0 |
| Expense Ratio, Percent | 0% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 12.09%. For the same period, the Bloomberg U.S. Universal Index returned 11.20% and the Morningstar ® SM What contributed to performance? Bond returns in the United States were supported during the reporting period by an environment of slowing pricing pressures and steady growth, including the first rate cut by the U.S. Federal Reserve (“Fed”) since March 2020. The reporting period was characterized by anticipation of the Fed’s next moves, amid a cooling labor market, geopolitical tensions, and overall macroeconomic volatility. Rates falling in tandem with credit spreads tightening led to the Fund’s strong performance. Longer-term investment-grade corporates were the largest contributors to the Fund’s performance, followed by high yield issues, and U.S. dollar denominated emerging market debt. What detracted from performance? There were no significant detractors to the Fund’s performance during the reporting period. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund Bloomberg U.S. Universal Index Morningstar ® Nov 14 $10,036 $10,054 $10,033 Dec 14 $10,015 $10,036 $10,011 Jan 15 $10,131 $10,227 $10,129 Feb 15 $10,150 $10,167 $10,148 Mar 15 $10,151 $10,209 $10,148 Apr 15 $10,155 $10,197 $10,154 May 15 $10,131 $10,180 $10,125 Jun 15 $10,007 $10,066 $9,999 Jul 15 $10,054 $10,125 $10,044 Aug 15 $9,988 $10,095 $9,980 Sep 15 $9,974 $10,134 $9,964 Oct 15 $10,067 $10,167 $10,054 Nov 15 $9,996 $10,130 $9,985 Dec 15 $9,919 $10,079 $9,908 Jan 16 $9,952 $10,190 $9,939 Feb 16 $10,028 $10,263 $10,014 Mar 16 $10,187 $10,388 $10,173 Apr 16 $10,296 $10,459 $10,285 May 16 $10,297 $10,467 $10,286 Jun 16 $10,456 $10,652 $10,440 Jul 16 $10,537 $10,739 $10,523 Aug 16 $10,579 $10,751 $10,563 Sep 16 $10,604 $10,753 $10,593 Oct 16 $10,542 $10,682 $10,524 Nov 16 $10,374 $10,442 $10,354 Dec 16 $10,442 $10,473 $10,423 Jan 17 $10,501 $10,510 $10,480 Feb 17 $10,593 $10,591 $10,572 Mar 17 $10,596 $10,588 $10,573 Apr 17 $10,687 $10,675 $10,663 May 17 $10,770 $10,758 $10,743 Jun 17 $10,762 $10,749 $10,735 Jul 17 $10,837 $10,802 $10,809 Aug 17 $10,915 $10,895 $10,885 Sep 17 $10,906 $10,857 $10,873 Oct 17 $10,914 $10,870 $10,883 Nov 17 $10,901 $10,854 $10,865 Dec 17 $10,955 $10,901 $10,918 Jan 18 $10,872 $10,797 $10,836 Feb 18 $10,748 $10,694 $10,710 Mar 18 $10,785 $10,748 $10,746 Apr 18 $10,716 $10,676 $10,674 May 18 $10,754 $10,735 $10,708 Jun 18 $10,738 $10,719 $10,690 Jul 18 $10,830 $10,741 $10,776 Aug 18 $10,857 $10,794 $10,802 Sep 18 $10,871 $10,748 $10,815 Oct 18 $10,729 $10,658 $10,668 Nov 18 $10,721 $10,706 $10,660 Dec 18 $10,806 $10,874 $10,738 Jan 19 $11,121 $11,024 $11,050 Feb 19 $11,163 $11,036 $11,092 Mar 19 $11,372 $11,235 $11,301 Apr 19 $11,416 $11,251 $11,345 May 19 $11,481 $11,423 $11,409 Jun 19 $11,751 $11,585 $11,674 Jul 19 $11,794 $11,619 $11,715 Aug 19 $12,032 $11,882 $11,952 Sep 19 $12,004 $11,830 $11,923 Oct 19 $12,049 $11,869 $11,965 Nov 19 $12,066 $11,866 $11,982 Dec 19 $12,169 $11,884 $12,085 Jan 20 $12,340 $12,097 $12,254 Feb 20 $12,400 $12,278 $12,311 Mar 20 $11,720 $12,039 $11,644 Apr 20 $12,084 $12,280 $12,000 May 20 $12,283 $12,394 $12,198 Jun 20 $12,317 $12,498 $12,241 Jul 20 $12,553 $12,717 $12,477 Aug 20 $12,527 $12,644 $12,452 Sep 20 $12,480 $12,621 $12,406 Oct 20 $12,450 $12,576 $12,373 Nov 20 $12,616 $12,740 $12,537 Dec 20 $12,683 $12,784 $12,605 Jan 21 $12,595 $12,704 $12,515 Feb 21 $12,405 $12,540 $12,325 Mar 21 $12,307 $12,394 $12,227 Apr 21 $12,422 $12,498 $12,339 May 21 $12,447 $12,546 $12,358 Jun 21 $12,530 $12,637 $12,442 Jul 21 $12,648 $12,764 $12,551 Aug 21 $12,660 $12,756 $12,561 Sep 21 $12,538 $12,647 $12,438 Oct 21 $12,508 $12,636 $12,404 Nov 21 $12,483 $12,652 $12,380 Dec 21 $12,549 $12,643 $12,440 Jan 22 $12,293 $12,366 $12,182 Feb 22 $12,141 $12,197 $12,029 Mar 22 $11,865 $11,870 $11,752 Apr 22 $11,433 $11,427 $11,319 May 22 $11,560 $11,490 $11,442 Jun 22 $11,213 $11,261 $11,095 Jul 22 $11,592 $11,544 $11,468 Aug 22 $11,248 $11,244 $11,123 Sep 22 $10,913 $10,759 $10,787 Oct 22 $10,958 $10,641 $10,829 Nov 22 $11,295 $11,038 $11,159 Dec 22 $11,242 $11,001 $11,107 Jan 23 $11,499 $11,342 $11,360 Feb 23 $11,335 $11,063 $11,195 Mar 23 $11,519 $11,323 $11,374 Apr 23 $11,572 $11,392 $11,426 May 23 $11,499 $11,274 $11,353 Jun 23 $11,584 $11,256 $11,436 Jul 23 $11,656 $11,267 $11,505 Aug 23 $11,622 $11,200 $11,468 Sep 23 $11,416 $10,932 $11,259 Oct 23 $11,308 $10,768 $11,147 Nov 23 $11,792 $11,253 $11,623 Dec 23 $12,163 $11,680 $11,989 Jan 24 $12,162 $11,652 $11,987 Feb 24 $12,098 $11,512 $11,924 Mar 24 $12,230 $11,625 $12,054 Apr 24 $12,017 $11,353 $11,841 May 24 $12,217 $11,542 $12,038 Jun 24 $12,257 $11,647 $12,079 Jul 24 $12,496 $11,911 $12,315 Aug 24 $12,663 $12,087 $12,479 Sep 24 $12,868 $12,253 $12,681 Oct 24 $12,675 $11,974 $12,489 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.09 % 1.02 % 2.40 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 0.18 1.82 Morningstar ® ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.04 0.86 2.25 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 241,378,020 |
| Holdings Count | Holding | 8 |
| Advisory Fees Paid, Amount | $ 0 |
| InvestmentCompanyPortfolioTurnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $241,378,020 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 8 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $0 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 96% |
| Holdings [Text Block] | Portfolio composition Five largest holdings Investment Type Percent of Total Investments Footnote Reference Investment Companies ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 100.0 % Security Percent of TotaI Investments Footnote Reference iShares 10+ Year Investment Grade Corporate Bond ETF ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 25.5 % iShares 0-3 Month Treasury Bond ETF ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 24.1 iShares Broad USD High Yield Corporate Bond ETF ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 20.2 iShares JP Morgan USD Emerging Markets Bond ETF ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.1 iShares Floating Rate Bond ETF ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 10.1 Footnote Description Footnote (a) Excludes money market funds. |
| C000141927 | |
| Shareholder Report [Line Items] | |
| Fund Name | iShares Core Total USD Bond Market ETF |
| Trading Symbol | IUSB |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about iShares Core Total USD Bond Market ETF (the “Fund”) for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at blackrock.com/fundreports |
| Additional Information Phone Number | 1-800-iShares (1-800-474-2737) |
| Additional Information Website | blackrock.com/fundreports |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Fund name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment iShares Core Total USD Bond Market ETF $6 0.06% |
| Expenses Paid, Amount | $ 6 |
| Expense Ratio, Percent | 0.06% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? For the reporting period ended October 31, 2024, the Fund returned 11.18%. For the same period, the Bloomberg U.S. Universal Index returned 11.20%. What contributed to performance? U.S. corporate and U.S. Treasury bonds contributed the most to the Fund’s performance during the reporting period. The major factor driving bond returns for the reporting period was the expectation and then realization of rate cuts by the U.S. Federal Reserve. Corporate bonds, particularly those higher on the quality spectrum, were the main drivers. In the financial sector, bank bonds were supported by hopes of a lower interest rate environment. Intermediate to long-term issues also contributed positively to the Fund’s performance. What detracted from performance? During the reporting period, there were no significant detractors from the Fund’s returns. |
| Performance Past Does Not Indicate Future [Text] | Past performance is not an indication of future results. |
| Line Graph [Table Text Block] | Fund Bloomberg U.S. Universal Index Nov 14 $10,046 $10,054 Dec 14 $10,042 $10,036 Jan 15 $10,230 $10,227 Feb 15 $10,176 $10,167 Mar 15 $10,219 $10,209 Apr 15 $10,206 $10,197 May 15 $10,187 $10,180 Jun 15 $10,072 $10,066 Jul 15 $10,133 $10,125 Aug 15 $10,101 $10,095 Sep 15 $10,139 $10,134 Oct 15 $10,179 $10,167 Nov 15 $10,141 $10,130 Dec 15 $10,089 $10,079 Jan 16 $10,202 $10,190 Feb 16 $10,280 $10,263 Mar 16 $10,405 $10,388 Apr 16 $10,477 $10,459 May 16 $10,481 $10,467 Jun 16 $10,666 $10,652 Jul 16 $10,751 $10,739 Aug 16 $10,759 $10,751 Sep 16 $10,758 $10,753 Oct 16 $10,685 $10,682 Nov 16 $10,440 $10,442 Dec 16 $10,470 $10,473 Jan 17 $10,507 $10,510 Feb 17 $10,589 $10,591 Mar 17 $10,584 $10,588 Apr 17 $10,669 $10,675 May 17 $10,756 $10,758 Jun 17 $10,745 $10,749 Jul 17 $10,799 $10,802 Aug 17 $10,890 $10,895 Sep 17 $10,854 $10,857 Oct 17 $10,866 $10,870 Nov 17 $10,847 $10,854 Dec 17 $10,894 $10,901 Jan 18 $10,789 $10,797 Feb 18 $10,681 $10,694 Mar 18 $10,733 $10,748 Apr 18 $10,662 $10,676 May 18 $10,719 $10,735 Jun 18 $10,702 $10,719 Jul 18 $10,728 $10,741 Aug 18 $10,779 $10,794 Sep 18 $10,733 $10,748 Oct 18 $10,642 $10,658 Nov 18 $10,689 $10,706 Dec 18 $10,853 $10,874 Jan 19 $11,006 $11,024 Feb 19 $11,018 $11,036 Mar 19 $11,217 $11,235 Apr 19 $11,234 $11,251 May 19 $11,402 $11,423 Jun 19 $11,561 $11,585 Jul 19 $11,598 $11,619 Aug 19 $11,860 $11,882 Sep 19 $11,808 $11,830 Oct 19 $11,843 $11,869 Nov 19 $11,840 $11,866 Dec 19 $11,859 $11,884 Jan 20 $12,070 $12,097 Feb 20 $12,246 $12,278 Mar 20 $12,005 $12,039 Apr 20 $12,253 $12,280 May 20 $12,368 $12,394 Jun 20 $12,472 $12,498 Jul 20 $12,691 $12,717 Aug 20 $12,617 $12,644 Sep 20 $12,595 $12,621 Oct 20 $12,550 $12,576 Nov 20 $12,717 $12,740 Dec 20 $12,759 $12,784 Jan 21 $12,675 $12,704 Feb 21 $12,510 $12,540 Mar 21 $12,365 $12,394 Apr 21 $12,468 $12,498 May 21 $12,513 $12,546 Jun 21 $12,604 $12,637 Jul 21 $12,730 $12,764 Aug 21 $12,722 $12,756 Sep 21 $12,613 $12,647 Oct 21 $12,599 $12,636 Nov 21 $12,614 $12,652 Dec 21 $12,596 $12,643 Jan 22 $12,327 $12,366 Feb 22 $12,159 $12,197 Mar 22 $11,843 $11,870 Apr 22 $11,401 $11,427 May 22 $11,464 $11,490 Jun 22 $11,233 $11,261 Jul 22 $11,515 $11,544 Aug 22 $11,217 $11,244 Sep 22 $10,734 $10,759 Oct 22 $10,617 $10,641 Nov 22 $11,015 $11,038 Dec 22 $10,957 $11,001 Jan 23 $11,314 $11,342 Feb 23 $11,035 $11,063 Mar 23 $11,295 $11,323 Apr 23 $11,362 $11,392 May 23 $11,246 $11,274 Jun 23 $11,229 $11,256 Jul 23 $11,240 $11,267 Aug 23 $11,171 $11,200 Sep 23 $10,904 $10,932 Oct 23 $10,739 $10,768 Nov 23 $11,222 $11,253 Dec 23 $11,637 $11,680 Jan 24 $11,620 $11,652 Feb 24 $11,480 $11,512 Mar 24 $11,584 $11,625 Apr 24 $11,322 $11,353 May 24 $11,510 $11,542 Jun 24 $11,612 $11,647 Jul 24 $11,878 $11,911 Aug 24 $12,052 $12,087 Sep 24 $12,218 $12,253 Oct 24 $11,939 $11,974 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Fund NAV ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.18 % 0.16 % 1.79 % Bloomberg U.S. Universal Index ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 11.20 0.18 1.82 |
| No Deduction of Taxes [Text Block] | Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. |
| Updated Performance Information Location [Text Block] | Visit iShares.com |
| AssetsNet | $ 33,316,056,972 |
| Holdings Count | Holding | 16,670 |
| Advisory Fees Paid, Amount | $ 15,110,493 |
| InvestmentCompanyPortfolioTurnover | 88% |
| Additional Fund Statistics [Text Block] | Key Fund statistics Net Assets ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $33,316,056,972 Number of Portfolio Holdings ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 16,670 Net Investment Advisory Fees ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ $15,110,493 Portfolio Turnover Rate ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 88% |
| Holdings [Text Block] | Credit quality allocation Portfolio composition Moody's Credit Rating Footnote Reference Percent of Total Investments Footnote Reference Aaa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 60.7 % Aa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.3 A ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.3 Baa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 12.9 Ba ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 B ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.4 Caa ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.8 Ca ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.3 C ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Not Rated ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 4.4 Investment Type Percent of Total Investments Footnote Reference U.S. Treasury Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 38.2 % Corporate Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 31.6 U.S. Government Sponsored Agency Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 22.5 Foreign Government Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 3.4 Foreign Agency Obligations ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 2.9 Non-Agency Mortgage-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.6 Asset-Backed Securities ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Municipal Bonds ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.4 Common Stocks ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 0.0 Footnote Reference Footnote Description Footnote * Credit quality ratings shown reflect the ratings assigned by Moody’s Investors Service (“Moody’s”), a widely used independent, nationally recognized statistical rating organization. Moody’s credit ratings are opinions of the credit quality of individual obligations or of an issuer’s general creditworthiness. Investment grade ratings are credit ratings of Baa or higher. Below investment grade ratings are credit ratings of Ba or lower. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change. Footnote (a) Excludes money market funds. Footnote (b) Rounds to less than 0.1%. |
| Shareholder Report, Line Graph (Details) - USD ($) | 1 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 8 Months Ended | 11 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Nov. 30, 2018 | Nov. 30, 2014 | Mar. 07, 2022 | Feb. 24, 2020 | Mar. 31, 2018 | May 09, 2023 | Apr. 30, 2019 | Jun. 27, 2023 | Jun. 21, 2023 | Jul. 05, 2022 | Jun. 27, 2022 | Jul. 12, 2021 | Jul. 13, 2020 | Sep. 30, 2023 | Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Aug. 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | May 31, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | Apr. 30, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Aug. 31, 2021 | Jul. 31, 2021 | Jun. 30, 2021 | May 31, 2021 | Apr. 30, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2020 | Oct. 31, 2020 | Sep. 30, 2020 | Aug. 31, 2020 | Jul. 31, 2020 | Jun. 30, 2020 | May 31, 2020 | Apr. 30, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Aug. 31, 2019 | Jul. 31, 2019 | Jun. 30, 2019 | May 31, 2019 | Mar. 31, 2019 | Feb. 28, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | Oct. 31, 2018 | Sep. 30, 2018 | Aug. 31, 2018 | Jul. 31, 2018 | Jun. 30, 2018 | May 31, 2018 | Apr. 30, 2018 | Feb. 28, 2018 | Jan. 31, 2018 | Dec. 31, 2017 | Nov. 30, 2017 | Oct. 31, 2017 | Sep. 30, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Jun. 30, 2017 | May 31, 2017 | Apr. 30, 2017 | Mar. 31, 2017 | Feb. 28, 2017 | Jan. 31, 2017 | Dec. 31, 2016 | Nov. 30, 2016 | Oct. 31, 2016 | Sep. 30, 2016 | Aug. 31, 2016 | Jul. 31, 2016 | Jun. 30, 2016 | May 31, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Feb. 29, 2016 | Jan. 31, 2016 | Dec. 31, 2015 | Nov. 30, 2015 | Oct. 31, 2015 | Sep. 30, 2015 | Aug. 31, 2015 | Jul. 31, 2015 | Jun. 30, 2015 | May 31, 2015 | Apr. 30, 2015 | Mar. 31, 2015 | Feb. 28, 2015 | Jan. 31, 2015 | Dec. 31, 2014 | |
| C000171898 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,187 | $ 10,012 | $ 10,567 | $ 11,106 | $ 11,529 | $ 11,499 | $ 11,472 | $ 11,444 | $ 11,407 | $ 11,372 | $ 11,340 | $ 11,310 | $ 11,297 | $ 11,278 | $ 11,259 | $ 11,219 | $ 11,141 | $ 11,120 | $ 11,101 | $ 11,085 | $ 11,038 | $ 11,038 | $ 11,077 | $ 10,976 | $ 11,066 | $ 10,978 | $ 10,984 | $ 10,846 | $ 10,831 | $ 10,953 | $ 11,079 | $ 10,992 | $ 10,993 | $ 10,880 | $ 10,969 | $ 11,120 | $ 11,151 | $ 11,324 | $ 11,325 | $ 11,322 | $ 11,339 | $ 11,369 | $ 11,374 | $ 11,337 | $ 11,333 | $ 11,341 | $ 11,303 | $ 11,273 | $ 11,353 | $ 11,328 | $ 11,309 | $ 11,274 | $ 11,297 | $ 11,290 | $ 11,303 | $ 11,211 | $ 11,190 | $ 10,862 | $ 10,873 | $ 11,092 | $ 11,045 | $ 10,921 | $ 10,884 | $ 10,866 | $ 10,820 | $ 10,912 | $ 10,867 | $ 10,752 | $ 10,699 | $ 10,567 | $ 10,492 | $ 10,437 | $ 10,320 | $ 10,070 | $ 10,103 | $ 10,174 | $ 10,171 | $ 10,120 | $ 10,106 | $ 9,964 | |||||||||||||||||||||||||||||||||||||||||||||||||
| C000204675 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,172 | 10,675 | 11,054 | $ 11,534 | 11,537 | 11,521 | 11,469 | 11,404 | 11,351 | 11,325 | 11,322 | 11,330 | 11,324 | 11,323 | 11,250 | 11,081 | 11,119 | 11,122 | 11,107 | 11,054 | 11,106 | 11,165 | 10,998 | 11,176 | 11,047 | 11,027 | 10,820 | 10,817 | 11,018 | 11,200 | 11,052 | 11,068 | 10,922 | 11,064 | 11,273 | 11,313 | 11,562 | 11,562 | 11,548 | 11,567 | 11,623 | 11,633 | 11,572 | 11,566 | 11,575 | 11,522 | 11,485 | 11,626 | 11,601 | 11,583 | 11,521 | 11,541 | 11,531 | 11,549 | 11,418 | 11,398 | 11,009 | 11,036 | 11,309 | 11,251 | 11,076 | 11,036 | 11,022 | 10,973 | 11,090 | 10,994 | 10,873 | 10,828 | 10,662 | 10,563 | 10,492 | 10,331 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000204676 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,052 | 10,383 | $ 10,918 | 10,963 | 10,923 | 10,837 | 10,755 | 10,685 | 10,682 | 10,711 | 10,735 | 10,731 | 10,744 | 10,646 | 10,395 | 10,493 | 10,515 | 10,500 | 10,446 | 10,522 | 10,595 | 10,402 | 10,610 | 10,440 | 10,403 | 10,158 | 10,161 | 10,410 | 10,603 | 10,413 | 10,450 | 10,294 | 10,471 | 10,707 | 10,749 | 11,029 | 11,017 | 10,987 | 11,011 | 11,079 | 11,099 | 11,024 | 11,015 | 11,017 | 10,954 | 10,914 | 11,079 | 11,051 | 11,017 | 10,928 | 10,953 | 10,940 | 10,959 | 10,810 | 10,787 | 10,414 | 10,459 | 10,780 | 10,684 | 10,478 | 10,443 | 10,428 | 10,414 | 10,535 | 10,373 | 10,273 | 10,228 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000210857 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,076 | 10,360 | $ 10,958 | 11,029 | 10,968 | 10,855 | 10,757 | 10,668 | 10,703 | 10,760 | 10,797 | 10,789 | 10,822 | 10,688 | 10,350 | 10,515 | 10,562 | 10,548 | 10,487 | 10,595 | 10,662 | 10,447 | 10,682 | 10,464 | 10,416 | 10,113 | 10,123 | 10,428 | 10,642 | 10,402 | 10,460 | 10,275 | 10,491 | 10,773 | 10,815 | 11,132 | 11,118 | 11,065 | 11,095 | 11,183 | 11,212 | 11,121 | 11,105 | 11,096 | 11,022 | 10,976 | 11,189 | 11,156 | 11,118 | 10,987 | 11,021 | 11,019 | 11,066 | 10,889 | 10,856 | 10,438 | 10,522 | 10,867 | 10,742 | 10,515 | 10,475 | 10,463 | 10,460 | 10,589 | 10,394 | 10,294 | 10,264 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000210858 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,076 | 10,343 | $ 10,989 | 11,092 | 11,018 | 10,881 | 10,773 | 10,667 | 10,742 | 10,830 | 10,869 | 10,861 | 10,910 | 10,734 | 10,317 | 10,545 | 10,618 | 10,605 | 10,537 | 10,670 | 10,726 | 10,500 | 10,753 | 10,493 | 10,431 | 10,072 | 10,096 | 10,439 | 10,650 | 10,375 | 10,462 | 10,273 | 10,538 | 10,869 | 10,907 | 11,255 | 11,240 | 11,169 | 11,204 | 11,310 | 11,350 | 11,245 | 11,228 | 11,213 | 11,125 | 11,066 | 11,322 | 11,281 | 11,226 | 11,069 | 11,102 | 11,117 | 11,191 | 10,997 | 10,964 | 10,501 | 10,601 | 10,961 | 10,811 | 10,564 | 10,519 | 10,515 | 10,525 | 10,649 | 10,434 | 10,322 | 10,272 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000242692 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,590 | $ 10,356 | 10,491 | 10,410 | 10,263 | 10,164 | 10,042 | 10,148 | 10,260 | 10,297 | 10,298 | 10,345 | 10,094 | 9,555 | 9,844 | 9,955 | 9,917 | 9,831 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000093655 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,229 | $ 9,980 | 10,208 | 10,462 | 11,817 | $ 12,652 | 12,707 | 12,582 | 12,510 | 12,393 | 12,325 | 12,212 | 12,212 | 12,149 | 12,172 | 12,115 | 11,985 | 11,861 | 11,839 | 11,826 | 11,765 | 11,788 | 11,867 | 11,840 | 11,627 | 11,676 | 11,583 | 11,619 | 11,564 | 11,448 | 11,782 | 11,959 | 11,755 | 11,929 | 11,877 | 11,882 | 11,976 | 11,855 | 11,918 | 11,882 | 11,862 | 11,781 | 11,783 | 11,778 | 11,628 | 11,614 | 11,530 | 11,436 | 11,379 | 11,360 | 11,299 | 11,202 | 11,133 | 11,158 | 11,174 | 11,049 | 10,972 | 10,892 | 10,817 | 10,678 | 10,849 | 10,794 | 10,744 | 10,667 | 10,655 | 10,623 | 10,646 | 10,589 | 10,580 | 10,516 | 10,413 | 10,339 | 10,320 | 10,242 | 10,228 | 10,273 | 10,297 | 10,244 | 10,258 | 10,245 | 10,208 | $ 10,160 | $ 10,164 | $ 10,191 | $ 10,171 | $ 10,189 | $ 10,173 | $ 10,181 | $ 10,154 | $ 10,125 | $ 10,169 | $ 10,175 | $ 10,180 | $ 10,170 | $ 10,159 | $ 10,110 | $ 10,078 | $ 10,130 | $ 10,125 | $ 10,059 | $ 10,084 | $ 10,097 | $ 10,005 | $ 10,017 | $ 10,014 | $ 9,915 | $ 9,893 | $ 9,838 | $ 9,861 | $ 9,878 | $ 9,875 | $ 9,884 | $ 9,908 | $ 9,941 | $ 9,940 | $ 9,951 | $ 9,885 | $ 9,922 | $ 9,940 | $ 9,848 | |||||||||
| C000012093 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,291 | 10,021 | 10,403 | 10,703 | 11,434 | $ 12,308 | 12,533 | 12,352 | 12,258 | 12,040 | 11,950 | 11,753 | 11,931 | 11,858 | 11,986 | 11,940 | 11,653 | 11,354 | 11,652 | 11,760 | 11,742 | 11,783 | 11,928 | 11,917 | 11,587 | 11,750 | 11,516 | 11,659 | 11,454 | 11,311 | 12,115 | 12,439 | 11,932 | 12,321 | 12,441 | 12,709 | 12,956 | 12,848 | 13,106 | 13,076 | 12,960 | 12,819 | 12,912 | 12,933 | 12,604 | 12,519 | 12,379 | 12,212 | 12,245 | 12,457 | 12,420 | 12,288 | 12,150 | 12,230 | 12,275 | 12,148 | 11,877 | 11,748 | 11,712 | 11,386 | 11,594 | 11,437 | 11,199 | 11,162 | 11,145 | 11,117 | 11,273 | 11,009 | 10,965 | 10,879 | 10,670 | 10,482 | 10,484 | 10,343 | 10,243 | 10,396 | 10,508 | 10,433 | 10,484 | 10,443 | 10,399 | 10,301 | 10,403 | 10,493 | 10,397 | 10,384 | 10,364 | 10,432 | 10,322 | 10,278 | 10,377 | 10,379 | 10,320 | 10,331 | 10,282 | 10,195 | 10,208 | 10,408 | 10,450 | 10,396 | 10,438 | 10,351 | 10,143 | 10,215 | 10,182 | 10,005 | 9,896 | 9,751 | 9,831 | 9,842 | 9,816 | 9,875 | 9,952 | 9,935 | 10,027 | 10,118 | 10,048 | 10,099 | 10,223 | 9,908 | |||||||||
| C000110086 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,347 | 10,079 | 10,363 | 10,760 | 10,232 | $ 10,955 | 11,223 | 11,092 | 10,951 | 10,716 | 10,611 | 10,460 | 10,698 | 10,640 | 10,781 | 10,794 | 10,458 | 10,109 | 10,464 | 10,519 | 10,557 | 10,634 | 10,757 | 10,701 | 10,400 | 10,645 | 10,358 | 10,437 | 10,164 | 10,309 | 10,676 | 10,951 | 10,781 | 10,877 | 10,860 | 11,207 | 11,572 | 11,653 | 11,864 | 11,938 | 11,847 | 11,861 | 11,989 | 12,010 | 11,853 | 11,759 | 11,736 | 11,648 | 11,826 | 12,053 | 12,173 | 12,202 | 12,161 | 12,279 | 12,259 | 12,396 | 12,256 | 12,246 | 12,280 | 12,238 | 11,859 | 11,558 | 11,279 | 11,345 | 11,383 | 11,379 | 11,477 | 11,096 | 11,108 | 11,011 | 10,787 | 10,590 | 10,617 | 10,570 | 10,256 | 10,306 | 10,406 | 10,329 | 10,371 | 10,370 | 10,278 | 10,269 | 10,345 | 10,492 | 10,462 | 10,476 | 10,491 | 10,585 | 10,471 | 10,457 | 10,472 | 10,404 | 10,334 | 10,339 | 10,287 | 10,267 | 10,278 | 10,562 | 10,682 | 10,695 | 10,756 | 10,715 | 10,486 | 10,486 | 10,498 | 10,482 | 10,384 | 10,173 | 10,191 | 10,232 | 10,269 | 10,181 | 10,177 | 10,094 | 10,183 | 10,203 | 10,257 | 10,192 | 10,353 | 10,096 | |||||||||
| C000217185 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 10,085 | 10,682 | 10,641 | 10,594 | 10,544 | 10,494 | 10,452 | 10,404 | 10,360 | 10,318 | 10,284 | 10,241 | 10,185 | 10,129 | 10,049 | 10,005 | 9,960 | 9,951 | 9,959 | 9,943 | 9,826 | 9,864 | 9,810 | 9,788 | 9,741 | 9,754 | 9,861 | 9,933 | 9,895 | 9,959 | 9,893 | 9,947 | 10,124 | 10,179 | 10,272 | 10,296 | 10,301 | 10,358 | 10,380 | 10,385 | 10,348 | 10,380 | 10,364 | 10,343 | 10,367 | 10,409 | 10,413 | 10,404 | 10,395 | 10,417 | 10,415 | 10,425 | 10,403 | 10,385 | 10,360 | 10,343 | 10,104 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000217186 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,738 | 10,334 | 10,319 | 10,255 | 10,189 | 10,115 | 10,072 | 10,019 | 10,012 | 9,979 | 9,998 | 9,957 | 9,862 | 9,776 | 9,735 | 9,695 | 9,663 | 9,723 | 9,764 | 9,734 | 9,555 | 9,664 | 9,563 | 9,566 | 9,466 | 9,477 | 9,642 | 9,790 | 9,712 | 9,774 | 9,700 | 9,794 | 10,041 | 10,103 | 10,220 | 10,249 | 10,248 | 10,324 | 10,375 | 10,391 | 10,322 | 10,354 | 10,329 | 10,289 | 10,345 | 10,448 | 10,464 | 10,453 | 10,439 | 10,481 | 10,479 | 10,497 | 10,459 | 10,437 | 10,412 | 10,387 | 10,112 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000217187 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,490 | 10,090 | 10,138 | 10,058 | 9,968 | 9,852 | 9,796 | 9,724 | 9,771 | 9,744 | 9,808 | 9,772 | 9,641 | 9,508 | 9,524 | 9,499 | 9,474 | 9,567 | 9,628 | 9,574 | 9,355 | 9,516 | 9,368 | 9,387 | 9,230 | 9,260 | 9,486 | 9,704 | 9,574 | 9,643 | 9,566 | 9,717 | 10,009 | 10,066 | 10,208 | 10,248 | 10,222 | 10,310 | 10,393 | 10,416 | 10,322 | 10,336 | 10,299 | 10,241 | 10,337 | 10,488 | 10,528 | 10,516 | 10,490 | 10,560 | 10,546 | 10,576 | 10,518 | 10,501 | 10,472 | 10,444 | 10,132 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000217188 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,219 | 9,831 | 9,938 | 9,850 | 9,748 | 9,593 | 9,525 | 9,432 | 9,526 | 9,496 | 9,594 | 9,562 | 9,389 | 9,202 | 9,291 | 9,282 | 9,261 | 9,372 | 9,455 | 9,390 | 9,141 | 9,343 | 9,161 | 9,203 | 9,011 | 9,054 | 9,329 | 9,579 | 9,406 | 9,483 | 9,413 | 9,623 | 9,949 | 9,994 | 10,155 | 10,200 | 10,144 | 10,234 | 10,352 | 10,385 | 10,244 | 10,222 | 10,178 | 10,096 | 10,248 | 10,456 | 10,520 | 10,517 | 10,492 | 10,590 | 10,573 | 10,623 | 10,554 | 10,545 | 10,524 | 10,487 | 10,148 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000217189 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,019 | 9,631 | 9,795 | 9,701 | 9,594 | 9,407 | 9,326 | 9,214 | 9,355 | 9,317 | 9,442 | 9,411 | 9,204 | 8,971 | 9,131 | 9,135 | 9,126 | 9,244 | 9,335 | 9,266 | 8,995 | 9,219 | 8,996 | 9,064 | 8,827 | 8,893 | 9,208 | 9,501 | 9,299 | 9,380 | 9,315 | 9,578 | 9,927 | 9,967 | 10,149 | 10,185 | 10,111 | 10,199 | 10,332 | 10,364 | 10,208 | 10,153 | 10,117 | 10,031 | 10,210 | 10,435 | 10,515 | 10,531 | 10,501 | 10,623 | 10,597 | 10,674 | 10,593 | 10,584 | 10,570 | 10,517 | 10,159 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000217190 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 8,846 | 9,475 | 9,680 | 9,581 | 9,470 | 9,264 | 9,173 | 9,049 | 9,224 | 9,178 | 9,317 | 9,287 | 9,044 | 8,765 | 8,999 | 9,018 | 9,026 | 9,147 | 9,243 | 9,177 | 8,887 | 9,128 | 8,887 | 8,978 | 8,718 | 8,799 | 9,148 | 9,467 | 9,243 | 9,326 | 9,259 | 9,560 | 9,925 | 9,960 | 10,163 | 10,191 | 10,104 | 10,171 | 10,319 | 10,357 | 10,174 | 10,090 | 10,052 | 9,960 | 10,183 | 10,430 | 10,538 | 10,565 | 10,535 | 10,680 | 10,650 | 10,751 | 10,660 | 10,646 | 10,644 | 10,571 | 10,176 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000220170 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 7,937 | 8,515 | 8,746 | 8,645 | 8,536 | 8,324 | 8,229 | 8,104 | 8,297 | 8,246 | 8,391 | 8,375 | 8,117 | 7,830 | 8,123 | 8,160 | 8,186 | 8,302 | 8,410 | 8,343 | 8,058 | 8,325 | 8,051 | 8,168 | 7,899 | 7,999 | 8,368 | 8,692 | 8,446 | 8,528 | 8,465 | 8,819 | 9,187 | 9,227 | 9,441 | 9,474 | 9,369 | 9,406 | 9,567 | 9,604 | 9,407 | 9,284 | 9,246 | 9,144 | 9,403 | 9,666 | 9,802 | 9,848 | 9,819 | 9,977 | 9,948 | 10,072 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000228602 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 8,241 | 8,839 | 9,111 | 9,000 | 8,885 | 8,647 | 8,542 | 8,404 | 8,641 | 8,580 | 8,761 | 8,751 | 8,443 | 8,093 | 8,494 | 8,552 | 8,598 | 8,712 | 8,843 | 8,762 | 8,456 | 8,740 | 8,439 | 8,563 | 8,260 | 8,380 | 8,805 | 9,165 | 8,884 | 8,969 | 8,913 | 9,332 | 9,730 | 9,771 | 9,997 | 10,051 | 9,919 | 9,952 | 10,128 | 10,169 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000236733 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,146 | 9,826 | 10,154 | 10,026 | 9,886 | 9,607 | 9,488 | 9,322 | 9,607 | 9,540 | 9,737 | 9,731 | 9,372 | 8,967 | 9,446 | 9,526 | 9,591 | 9,706 | 9,847 | 9,769 | 9,416 | 9,725 | 9,392 | 9,524 | 9,184 | 9,349 | 9,835 | 10,244 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243160 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,464 | 10,149 | 10,498 | 10,360 | 10,215 | 9,927 | 9,806 | 9,629 | 9,942 | 9,877 | 10,085 | 10,096 | 9,700 | 9,262 | 9,798 | 9,886 | 9,963 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000234589 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,765 | 11,188 | 11,225 | 11,068 | 10,912 | 10,729 | 10,632 | 10,543 | 10,622 | 10,512 | 10,478 | 10,486 | 10,113 | 9,678 | 9,899 | 9,879 | 9,746 | 9,602 | 9,707 | 9,607 | 9,477 | 9,629 | 9,278 | 9,353 | 9,190 | 8,906 | 9,294 | 9,562 | 8,990 | 9,686 | 9,681 | 10,071 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000234590 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,589 | 11,168 | 11,227 | 11,075 | 10,898 | 10,687 | 10,576 | 10,458 | 10,579 | 10,433 | 10,426 | 10,414 | 9,990 | 9,474 | 9,751 | 9,751 | 9,619 | 9,455 | 9,586 | 9,473 | 9,320 | 9,495 | 9,108 | 9,201 | 8,994 | 8,722 | 9,203 | 9,483 | 8,848 | 9,603 | 9,576 | 10,041 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243158 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,961 | $ 11,530 | 11,650 | 11,493 | 11,283 | 11,062 | 10,964 | 10,842 | 10,944 | 10,779 | 10,807 | 10,802 | 10,400 | 9,844 | 10,172 | 10,166 | 10,043 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243457 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,979 | $ 10,633 | 10,588 | 10,517 | 10,466 | 10,438 | 10,408 | 10,357 | 10,294 | 10,244 | 10,207 | 10,162 | 10,099 | 10,033 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243458 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,953 | $ 10,663 | 10,668 | 10,570 | 10,505 | 10,438 | 10,390 | 10,304 | 10,289 | 10,245 | 10,255 | 10,207 | 10,108 | 10,003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243459 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,932 | $ 10,679 | 10,733 | 10,618 | 10,551 | 10,439 | 10,369 | 10,260 | 10,287 | 10,237 | 10,288 | 10,240 | 10,094 | 9,956 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243460 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,908 | $ 10,661 | 10,766 | 10,638 | 10,578 | 10,421 | 10,342 | 10,211 | 10,282 | 10,222 | 10,307 | 10,260 | 10,074 | 9,909 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243461 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,914 | $ 10,688 | 10,838 | 10,709 | 10,646 | 10,466 | 10,381 | 10,236 | 10,329 | 10,261 | 10,374 | 10,323 | 10,096 | 9,894 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243462 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,861 | $ 10,685 | 10,880 | 10,739 | 10,656 | 10,443 | 10,360 | 10,185 | 10,332 | 10,243 | 10,404 | 10,335 | 10,065 | 9,801 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243463 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,839 | $ 10,668 | 10,899 | 10,749 | 10,658 | 10,428 | 10,335 | 10,151 | 10,331 | 10,246 | 10,426 | 10,354 | 10,049 | 9,746 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243464 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,825 | $ 10,658 | 10,920 | 10,751 | 10,659 | 10,415 | 10,317 | 10,124 | 10,334 | 10,250 | 10,427 | 10,372 | 10,036 | 9,708 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243456 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,808 | $ 10,616 | 10,903 | 10,722 | 10,633 | 10,381 | 10,288 | 10,083 | 10,328 | 10,244 | 10,422 | 10,376 | 10,027 | 9,665 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000236700 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,912 | 11,134 | 11,408 | 11,220 | 11,044 | 10,762 | 10,677 | 10,473 | 10,745 | 10,598 | 10,776 | 10,813 | 10,342 | 9,702 | 10,220 | 10,289 | 10,258 | 10,246 | 10,403 | 10,315 | 9,962 | 10,338 | 9,891 | 9,979 | 9,466 | 9,523 | 10,104 | 10,521 | 10,082 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000243159 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,656 | $ 10,845 | 11,133 | 10,945 | 10,781 | 10,496 | 10,415 | 10,210 | 10,488 | 10,343 | 10,531 | 10,568 | 10,102 | 9,448 | 9,965 | 10,036 | 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000138243 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,721 | 10,036 | 10,785 | 11,416 | 11,416 | $ 12,675 | 12,868 | 12,663 | 12,496 | 12,257 | 12,217 | 12,017 | 12,230 | 12,098 | 12,162 | 12,163 | 11,792 | 11,308 | 11,622 | 11,656 | 11,584 | 11,499 | 11,572 | 11,519 | 11,335 | 11,499 | 11,242 | 11,295 | 10,958 | 10,913 | 11,248 | 11,592 | 11,213 | 11,560 | 11,433 | 11,865 | 12,141 | 12,293 | 12,549 | 12,483 | 12,508 | 12,538 | 12,660 | 12,648 | 12,530 | 12,447 | 12,422 | 12,307 | 12,405 | 12,595 | 12,683 | 12,616 | 12,450 | 12,480 | 12,527 | 12,553 | 12,317 | 12,283 | 12,084 | 11,720 | 12,400 | 12,340 | 12,169 | 12,066 | 12,049 | 12,004 | 12,032 | 11,794 | 11,751 | 11,481 | 11,372 | 11,163 | 11,121 | 10,806 | 10,729 | 10,871 | 10,857 | 10,830 | 10,738 | 10,754 | 10,716 | 10,748 | 10,872 | 10,955 | 10,901 | 10,914 | 10,906 | 10,915 | 10,837 | 10,762 | 10,770 | 10,687 | 10,596 | 10,593 | 10,501 | 10,442 | 10,374 | 10,542 | 10,604 | 10,579 | 10,537 | 10,456 | 10,297 | 10,296 | 10,187 | 10,028 | 9,952 | 9,919 | 9,996 | 10,067 | 9,974 | 9,988 | 10,054 | 10,007 | 10,131 | 10,155 | 10,151 | 10,150 | 10,131 | 10,015 | |||||||||
| C000141927 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,689 | 10,046 | 10,733 | 11,234 | 10,904 | $ 11,939 | 12,218 | 12,052 | 11,878 | 11,612 | 11,510 | 11,322 | 11,584 | 11,480 | 11,620 | 11,637 | 11,222 | 10,739 | 11,171 | 11,240 | 11,229 | 11,246 | 11,362 | 11,295 | 11,035 | 11,314 | 10,957 | 11,015 | 10,617 | 10,734 | 11,217 | 11,515 | 11,233 | 11,464 | 11,401 | 11,843 | 12,159 | 12,327 | 12,596 | 12,614 | 12,599 | 12,613 | 12,722 | 12,730 | 12,604 | 12,513 | 12,468 | 12,365 | 12,510 | 12,675 | 12,759 | 12,717 | 12,550 | 12,595 | 12,617 | 12,691 | 12,472 | 12,368 | 12,253 | 12,005 | 12,246 | 12,070 | 11,859 | 11,840 | 11,843 | 11,808 | 11,860 | 11,598 | 11,561 | 11,402 | 11,217 | 11,018 | 11,006 | 10,853 | 10,642 | 10,733 | 10,779 | 10,728 | 10,702 | 10,719 | 10,662 | 10,681 | 10,789 | 10,894 | 10,847 | 10,866 | 10,854 | 10,890 | 10,799 | 10,745 | 10,756 | 10,669 | 10,584 | 10,589 | 10,507 | 10,470 | 10,440 | 10,685 | 10,758 | 10,759 | 10,751 | 10,666 | 10,481 | 10,477 | 10,405 | 10,280 | 10,202 | 10,089 | 10,141 | 10,179 | 10,139 | 10,101 | 10,133 | 10,072 | 10,187 | 10,206 | 10,219 | 10,176 | 10,230 | 10,042 | |||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,133 | 10,030 | 10,561 | 10,641 | $ 11,531 | 11,685 | 11,572 | 11,479 | 11,383 | 11,208 | 11,244 | 11,365 | 11,375 | 11,374 | 11,399 | 11,142 | 10,529 | 10,929 | 11,052 | 11,025 | 10,935 | 11,021 | 11,042 | 10,810 | 11,063 | 10,772 | 10,767 | 10,298 | 10,362 | 10,731 | 10,983 | 10,718 | 10,896 | 10,740 | 11,030 | 11,333 | 11,389 | 11,666 | 11,651 | 11,570 | 11,580 | 11,657 | 11,690 | 11,611 | 11,586 | 11,546 | 11,458 | 11,397 | 11,559 | 11,505 | 11,448 | 11,311 | 11,330 | 11,329 | 11,362 | 11,210 | 11,144 | 10,824 | 10,945 | 11,277 | 11,147 | 10,971 | 10,937 | 10,920 | 10,904 | 10,980 | 10,830 | 10,746 | 10,702 | 10,527 | 10,379 | 10,327 | 10,251 | 10,024 | 10,086 | 10,146 | 10,132 | 10,108 | 10,099 | 9,990 | |||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,094 | 10,521 | 10,600 | $ 11,487 | 11,640 | 11,528 | 11,435 | 11,339 | 11,165 | 11,201 | 11,322 | 11,331 | 11,330 | 11,355 | 11,100 | 10,488 | 10,887 | 11,010 | 10,983 | 10,893 | 10,979 | 10,999 | 10,768 | 11,021 | 10,730 | 10,725 | 10,258 | 10,323 | 10,689 | 10,941 | 10,677 | 10,854 | 10,698 | 10,988 | 11,289 | 11,345 | 11,621 | 11,606 | 11,526 | 11,535 | 11,613 | 11,645 | 11,567 | 11,542 | 11,502 | 11,414 | 11,353 | 11,514 | 11,461 | 11,404 | 11,268 | 11,287 | 11,286 | 11,318 | 11,167 | 11,102 | 10,783 | 10,903 | 11,233 | 11,105 | 10,929 | 10,895 | 10,878 | 10,863 | 10,938 | 10,788 | 10,705 | 10,661 | 10,487 | 10,339 | 10,288 | 10,211 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,044 | 10,120 | $ 10,966 | 11,113 | 11,006 | 10,917 | 10,826 | 10,660 | 10,694 | 10,809 | 10,818 | 10,817 | 10,841 | 10,597 | 10,013 | 10,394 | 10,511 | 10,486 | 10,400 | 10,482 | 10,501 | 10,280 | 10,522 | 10,244 | 10,240 | 9,793 | 9,855 | 10,205 | 10,446 | 10,194 | 10,363 | 10,214 | 10,490 | 10,778 | 10,831 | 11,094 | 11,080 | 11,004 | 11,013 | 11,087 | 11,118 | 11,043 | 11,019 | 10,981 | 10,897 | 10,839 | 10,993 | 10,942 | 10,887 | 10,758 | 10,776 | 10,775 | 10,806 | 10,661 | 10,599 | 10,294 | 10,409 | 10,725 | 10,602 | 10,434 | 10,402 | 10,386 | 10,370 | 10,443 | 10,300 | 10,220 | 10,178 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,051 | 10,127 | $ 10,975 | 11,121 | 11,014 | 10,925 | 10,834 | 10,667 | 10,702 | 10,817 | 10,826 | 10,825 | 10,849 | 10,605 | 10,021 | 10,402 | 10,519 | 10,493 | 10,407 | 10,489 | 10,509 | 10,288 | 10,530 | 10,252 | 10,247 | 9,801 | 9,862 | 10,213 | 10,453 | 10,201 | 10,370 | 10,221 | 10,498 | 10,786 | 10,839 | 11,103 | 11,088 | 11,012 | 11,021 | 11,095 | 11,126 | 11,051 | 11,027 | 10,989 | 10,905 | 10,847 | 11,001 | 10,950 | 10,895 | 10,765 | 10,784 | 10,783 | 10,814 | 10,669 | 10,607 | 10,302 | 10,417 | 10,732 | 10,609 | 10,442 | 10,410 | 10,393 | 10,378 | 10,450 | 10,307 | 10,228 | 10,185 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,048 | 10,123 | $ 10,970 | 11,117 | 11,009 | 10,921 | 10,829 | 10,663 | 10,697 | 10,813 | 10,822 | 10,821 | 10,845 | 10,600 | 10,017 | 10,398 | 10,515 | 10,489 | 10,403 | 10,485 | 10,505 | 10,284 | 10,525 | 10,248 | 10,243 | 9,797 | 9,859 | 10,209 | 10,449 | 10,197 | 10,366 | 10,217 | 10,494 | 10,782 | 10,835 | 11,098 | 11,084 | 11,008 | 11,017 | 11,090 | 11,122 | 11,047 | 11,023 | 10,985 | 10,901 | 10,843 | 10,997 | 10,946 | 10,891 | 10,761 | 10,779 | 10,778 | 10,809 | 10,665 | 10,603 | 10,298 | 10,413 | 10,728 | 10,605 | 10,438 | 10,406 | 10,389 | 10,374 | 10,446 | 10,303 | 10,224 | 10,181 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,621 | $ 10,425 | 10,565 | 10,463 | 10,379 | 10,292 | 10,134 | 10,166 | 10,276 | 10,284 | 10,283 | 10,306 | 10,074 | 9,519 | 9,881 | 9,993 | 9,968 | 9,887 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,595 | 10,076 | 10,630 | 11,116 | 10,681 | $ 11,625 | 11,916 | 11,759 | 11,593 | 11,331 | 11,223 | 11,036 | 11,309 | 11,215 | 11,370 | 11,384 | 10,977 | 10,515 | 10,953 | 11,022 | 11,031 | 11,071 | 11,193 | 11,122 | 10,847 | 11,126 | 10,801 | 10,847 | 10,468 | 10,613 | 11,102 | 11,412 | 11,154 | 11,306 | 11,258 | 11,687 | 12,023 | 12,178 | 12,439 | 12,479 | 12,431 | 12,428 | 12,548 | 12,565 | 12,431 | 12,327 | 12,290 | 12,185 | 12,315 | 12,539 | 12,638 | 12,624 | 12,501 | 12,564 | 12,565 | 12,670 | 12,477 | 12,394 | 12,331 | 12,119 | 12,206 | 11,987 | 11,749 | 11,762 | 11,768 | 11,736 | 11,807 | 11,494 | 11,464 | 11,317 | 11,114 | 10,900 | 10,901 | 10,791 | 10,534 | 10,617 | 10,685 | 10,616 | 10,615 | 10,626 | 10,552 | 10,561 | 10,662 | 10,786 | 10,736 | 10,750 | 10,743 | 10,798 | 10,698 | 10,654 | 10,663 | 10,580 | 10,501 | 10,505 | 10,434 | 10,410 | 10,398 | 10,653 | 10,740 | 10,750 | 10,764 | 10,695 | 10,500 | 10,495 | 10,456 | 10,366 | 10,290 | 10,144 | 10,178 | 10,207 | 10,203 | 10,135 | 10,150 | 10,078 | 10,188 | 10,212 | 10,252 | 10,200 | 10,306 | 10,084 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,595 | 10,076 | 10,630 | 11,116 | 10,681 | $ 11,625 | 11,916 | 11,759 | 11,593 | 11,331 | 11,223 | 11,036 | 11,309 | 11,215 | 11,370 | 11,384 | 10,977 | 10,515 | 10,953 | 11,022 | 11,031 | 11,071 | 11,193 | 11,122 | 10,847 | 11,126 | 10,801 | 10,847 | 10,468 | 10,613 | 11,102 | 11,412 | 11,154 | 11,306 | 11,258 | 11,687 | 12,023 | 12,178 | 12,439 | 12,479 | 12,431 | 12,428 | 12,548 | 12,565 | 12,431 | 12,327 | 12,290 | 12,185 | 12,315 | 12,539 | 12,638 | 12,624 | 12,501 | 12,564 | 12,565 | 12,670 | 12,477 | 12,394 | 12,331 | 12,119 | 12,206 | 11,987 | 11,749 | 11,762 | 11,768 | 11,736 | 11,807 | 11,494 | 11,464 | 11,317 | 11,114 | 10,900 | 10,901 | 10,791 | 10,534 | 10,617 | 10,685 | 10,616 | 10,615 | 10,626 | 10,552 | 10,561 | 10,662 | 10,786 | 10,736 | 10,750 | 10,743 | 10,798 | 10,698 | 10,654 | 10,663 | 10,580 | 10,501 | 10,505 | 10,434 | 10,410 | 10,398 | 10,653 | 10,740 | 10,750 | 10,764 | 10,695 | 10,500 | 10,495 | 10,456 | 10,366 | 10,290 | 10,144 | 10,178 | 10,207 | 10,203 | 10,135 | 10,150 | 10,078 | 10,188 | 10,212 | 10,252 | 10,200 | 10,306 | 10,084 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,595 | 10,076 | 10,630 | 11,116 | 10,681 | $ 11,625 | 11,916 | 11,759 | 11,593 | 11,331 | 11,223 | 11,036 | 11,309 | 11,215 | 11,370 | 11,384 | 10,977 | 10,515 | 10,953 | 11,022 | 11,031 | 11,071 | 11,193 | 11,122 | 10,847 | 11,126 | 10,801 | 10,847 | 10,468 | 10,613 | 11,102 | 11,412 | 11,154 | 11,306 | 11,258 | 11,687 | 12,023 | 12,178 | 12,439 | 12,479 | 12,431 | 12,428 | 12,548 | 12,565 | 12,431 | 12,327 | 12,290 | 12,185 | 12,315 | 12,539 | 12,638 | 12,624 | 12,501 | 12,564 | 12,565 | 12,670 | 12,477 | 12,394 | 12,331 | 12,119 | 12,206 | 11,987 | 11,749 | 11,762 | 11,768 | 11,736 | 11,807 | 11,494 | 11,464 | 11,317 | 11,114 | 10,900 | 10,901 | 10,791 | 10,534 | 10,617 | 10,685 | 10,616 | 10,615 | 10,626 | 10,552 | 10,561 | 10,662 | 10,786 | 10,736 | 10,750 | 10,743 | 10,798 | 10,698 | 10,654 | 10,663 | 10,580 | 10,501 | 10,505 | 10,434 | 10,410 | 10,398 | 10,653 | 10,740 | 10,750 | 10,764 | 10,695 | 10,500 | 10,495 | 10,456 | 10,366 | 10,290 | 10,144 | 10,178 | 10,207 | 10,203 | 10,135 | 10,150 | 10,078 | 10,188 | 10,212 | 10,252 | 10,200 | 10,306 | 10,084 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 8,813 | $ 9,591 | 9,832 | 9,702 | 9,565 | 9,349 | 9,260 | 9,106 | 9,331 | 9,253 | 9,382 | 9,393 | 9,057 | 8,676 | 9,037 | 9,094 | 9,102 | 9,135 | 9,235 | 9,177 | 8,950 | 9,180 | 8,912 | 8,950 | 8,637 | 8,756 | 9,160 | 9,416 | 9,203 | 9,328 | 9,288 | 9,643 | 9,920 | 10,048 | 10,263 | 10,297 | 10,256 | 10,254 | 10,353 | 10,367 | 10,257 | 10,171 | 10,140 | 10,054 | 10,161 | 10,346 | 10,427 | 10,416 | 10,315 | 10,366 | 10,367 | 10,453 | 10,295 | 10,226 | 10,174 | 9,999 | 10,071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 8,813 | $ 9,591 | 9,832 | 9,702 | 9,565 | 9,349 | 9,260 | 9,106 | 9,331 | 9,253 | 9,382 | 9,393 | 9,057 | 8,676 | 9,037 | 9,094 | 9,102 | 9,135 | 9,235 | 9,177 | 8,950 | 9,180 | 8,912 | 8,950 | 8,637 | 8,756 | 9,160 | 9,416 | 9,203 | 9,328 | 9,288 | 9,643 | 9,920 | 10,048 | 10,263 | 10,297 | 10,256 | 10,254 | 10,353 | 10,367 | 10,257 | 10,171 | 10,140 | 10,054 | 10,161 | 10,346 | 10,427 | 10,416 | 10,315 | 10,366 | 10,367 | 10,453 | 10,295 | 10,226 | 10,174 | 9,999 | 10,071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 8,813 | $ 9,591 | 9,832 | 9,702 | 9,565 | 9,349 | 9,260 | 9,106 | 9,331 | 9,253 | 9,382 | 9,393 | 9,057 | 8,676 | 9,037 | 9,094 | 9,102 | 9,135 | 9,235 | 9,177 | 8,950 | 9,180 | 8,912 | 8,950 | 8,637 | 8,756 | 9,160 | 9,416 | 9,203 | 9,328 | 9,288 | 9,643 | 9,920 | 10,048 | 10,263 | 10,297 | 10,256 | 10,254 | 10,353 | 10,367 | 10,257 | 10,171 | 10,140 | 10,054 | 10,161 | 10,346 | 10,427 | 10,416 | 10,315 | 10,366 | 10,367 | 10,453 | 10,295 | 10,226 | 10,174 | 9,999 | 10,071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 8,813 | $ 9,591 | 9,832 | 9,702 | 9,565 | 9,349 | 9,260 | 9,106 | 9,331 | 9,253 | 9,382 | 9,393 | 9,057 | 8,676 | 9,037 | 9,094 | 9,102 | 9,135 | 9,235 | 9,177 | 8,950 | 9,180 | 8,912 | 8,950 | 8,637 | 8,756 | 9,160 | 9,416 | 9,203 | 9,328 | 9,288 | 9,643 | 9,920 | 10,048 | 10,263 | 10,297 | 10,256 | 10,254 | 10,353 | 10,367 | 10,257 | 10,171 | 10,140 | 10,054 | 10,161 | 10,346 | 10,427 | 10,416 | 10,315 | 10,366 | 10,367 | 10,453 | 10,295 | 10,226 | 10,174 | 9,999 | 10,071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 8,813 | $ 9,591 | 9,832 | 9,702 | 9,565 | 9,349 | 9,260 | 9,106 | 9,331 | 9,253 | 9,382 | 9,393 | 9,057 | 8,676 | 9,037 | 9,094 | 9,102 | 9,135 | 9,235 | 9,177 | 8,950 | 9,180 | 8,912 | 8,950 | 8,637 | 8,756 | 9,160 | 9,416 | 9,203 | 9,328 | 9,288 | 9,643 | 9,920 | 10,048 | 10,263 | 10,297 | 10,256 | 10,254 | 10,353 | 10,367 | 10,257 | 10,171 | 10,140 | 10,054 | 10,161 | 10,346 | 10,427 | 10,416 | 10,315 | 10,366 | 10,367 | 10,453 | 10,295 | 10,226 | 10,174 | 9,999 | 10,071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 8,813 | $ 9,591 | 9,832 | 9,702 | 9,565 | 9,349 | 9,260 | 9,106 | 9,331 | 9,253 | 9,382 | 9,393 | 9,057 | 8,676 | 9,037 | 9,094 | 9,102 | 9,135 | 9,235 | 9,177 | 8,950 | 9,180 | 8,912 | 8,950 | 8,637 | 8,756 | 9,160 | 9,416 | 9,203 | 9,328 | 9,288 | 9,643 | 9,920 | 10,048 | 10,263 | 10,297 | 10,256 | 10,254 | 10,353 | 10,367 | 10,257 | 10,171 | 10,140 | 10,054 | 10,161 | 10,346 | 10,427 | 10,416 | 10,315 | 10,366 | 10,367 | 10,453 | 10,295 | 10,226 | 10,174 | 9,999 | 10,071 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 8,503 | $ 9,254 | 9,486 | 9,361 | 9,229 | 9,020 | 8,935 | 8,786 | 9,003 | 8,928 | 9,052 | 9,062 | 8,738 | 8,371 | 8,720 | 8,774 | 8,782 | 8,814 | 8,911 | 8,854 | 8,635 | 8,857 | 8,599 | 8,635 | 8,333 | 8,448 | 8,838 | 9,085 | 8,880 | 9,000 | 8,962 | 9,304 | 9,571 | 9,694 | 9,902 | 9,935 | 9,896 | 9,894 | 9,989 | 10,003 | 9,896 | 9,813 | 9,784 | 9,700 | 9,804 | 9,982 | 10,061 | 10,049 | 9,952 | 10,002 | 10,003 | 10,086 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 8,581 | $ 9,339 | 9,573 | 9,447 | 9,314 | 9,103 | 9,017 | 8,867 | 9,086 | 9,010 | 9,135 | 9,146 | 8,819 | 8,448 | 8,800 | 8,855 | 8,863 | 8,895 | 8,993 | 8,936 | 8,715 | 8,939 | 8,678 | 8,715 | 8,410 | 8,526 | 8,920 | 9,169 | 8,961 | 9,083 | 9,045 | 9,389 | 9,660 | 9,784 | 9,993 | 10,026 | 9,987 | 9,985 | 10,081 | 10,095 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,557 | $ 10,401 | 10,661 | 10,521 | 10,373 | 10,138 | 10,042 | 9,874 | 10,119 | 10,034 | 10,173 | 10,186 | 9,821 | 9,409 | 9,800 | 9,862 | 9,870 | 9,906 | 10,015 | 9,951 | 9,705 | 9,955 | 9,664 | 9,705 | 9,366 | 9,495 | 9,933 | 10,211 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,661 | $ 10,515 | 10,778 | 10,636 | 10,486 | 10,249 | 10,152 | 9,983 | 10,230 | 10,144 | 10,285 | 10,297 | 9,929 | 9,512 | 9,908 | 9,970 | 9,978 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,058 | $ 9,921 | 10,151 | 10,014 | 9,869 | 9,650 | 9,562 | 9,407 | 9,632 | 9,538 | 9,654 | 9,677 | 9,323 | 8,922 | 9,279 | 9,335 | 9,326 | 9,341 | 9,438 | 9,381 | 9,166 | 9,397 | 9,114 | 9,145 | 8,817 | 8,914 | 9,316 | 9,564 | 9,330 | 9,520 | 9,468 | 9,835 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,058 | $ 9,921 | 10,151 | 10,014 | 9,869 | 9,650 | 9,562 | 9,407 | 9,632 | 9,538 | 9,654 | 9,677 | 9,323 | 8,922 | 9,279 | 9,335 | 9,326 | 9,341 | 9,438 | 9,381 | 9,166 | 9,397 | 9,114 | 9,145 | 8,817 | 8,914 | 9,316 | 9,564 | 9,330 | 9,520 | 9,468 | 9,835 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,000 | 9,681 | $ 10,604 | 10,850 | 10,703 | 10,548 | 10,314 | 10,220 | 10,054 | 10,294 | 10,194 | 10,318 | 10,343 | 9,965 | 9,535 | 9,918 | 9,978 | 9,968 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,820 | $ 10,687 | 10,955 | 10,811 | 10,658 | 10,417 | 10,318 | 10,147 | 10,397 | 10,311 | 10,454 | 10,466 | 10,092 | 9,668 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,820 | $ 10,687 | 10,955 | 10,811 | 10,658 | 10,417 | 10,318 | 10,147 | 10,397 | 10,311 | 10,454 | 10,466 | 10,092 | 9,668 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,820 | $ 10,687 | 10,955 | 10,811 | 10,658 | 10,417 | 10,318 | 10,147 | 10,397 | 10,311 | 10,454 | 10,466 | 10,092 | 9,668 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,820 | $ 10,687 | 10,955 | 10,811 | 10,658 | 10,417 | 10,318 | 10,147 | 10,397 | 10,311 | 10,454 | 10,466 | 10,092 | 9,668 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,873 | $ 10,745 | 11,014 | 10,869 | 10,716 | 10,473 | 10,374 | 10,201 | 10,454 | 10,366 | 10,510 | 10,523 | 10,146 | 9,720 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,873 | $ 10,745 | 11,014 | 10,869 | 10,716 | 10,473 | 10,374 | 10,201 | 10,454 | 10,366 | 10,510 | 10,523 | 10,146 | 9,720 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,873 | $ 10,745 | 11,014 | 10,869 | 10,716 | 10,473 | 10,374 | 10,201 | 10,454 | 10,366 | 10,510 | 10,523 | 10,146 | 9,720 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,873 | $ 10,745 | 11,014 | 10,869 | 10,716 | 10,473 | 10,374 | 10,201 | 10,454 | 10,366 | 10,510 | 10,523 | 10,146 | 9,720 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 9,873 | $ 10,745 | 11,014 | 10,869 | 10,716 | 10,473 | 10,374 | 10,201 | 10,454 | 10,366 | 10,510 | 10,523 | 10,146 | 9,720 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,786 | $ 10,719 | 10,968 | 10,820 | 10,663 | 10,426 | 10,331 | 10,163 | 10,406 | 10,305 | 10,430 | 10,455 | 10,073 | 9,639 | 10,025 | 10,086 | 10,076 | 10,092 | 10,197 | 10,136 | 9,903 | 10,153 | 9,847 | 9,881 | 9,526 | 9,631 | 10,065 | 10,334 | 10,080 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,681 | $ 10,604 | 10,850 | 10,703 | 10,548 | 10,314 | 10,220 | 10,054 | 10,294 | 10,194 | 10,318 | 10,343 | 9,965 | 9,535 | 9,918 | 9,978 | 9,968 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,706 | 10,054 | 10,748 | 11,251 | 10,932 | $ 11,974 | 12,253 | 12,087 | 11,911 | 11,647 | 11,542 | 11,353 | 11,625 | 11,512 | 11,652 | 11,680 | 11,253 | 10,768 | 11,200 | 11,267 | 11,256 | 11,274 | 11,392 | 11,323 | 11,063 | 11,342 | 11,001 | 11,038 | 10,641 | 10,759 | 11,244 | 11,544 | 11,261 | 11,490 | 11,427 | 11,870 | 12,197 | 12,366 | 12,643 | 12,652 | 12,636 | 12,647 | 12,756 | 12,764 | 12,637 | 12,546 | 12,498 | 12,394 | 12,540 | 12,704 | 12,784 | 12,740 | 12,576 | 12,621 | 12,644 | 12,717 | 12,498 | 12,394 | 12,280 | 12,039 | 12,278 | 12,097 | 11,884 | 11,866 | 11,869 | 11,830 | 11,882 | 11,619 | 11,585 | 11,423 | 11,235 | 11,036 | 11,024 | 10,874 | 10,658 | 10,748 | 10,794 | 10,741 | 10,719 | 10,735 | 10,676 | 10,694 | 10,797 | 10,901 | 10,854 | 10,870 | 10,857 | 10,895 | 10,802 | 10,749 | 10,758 | 10,675 | 10,588 | 10,591 | 10,510 | 10,473 | 10,442 | 10,682 | 10,753 | 10,751 | 10,739 | 10,652 | 10,467 | 10,459 | 10,388 | 10,263 | 10,190 | 10,079 | 10,130 | 10,167 | 10,134 | 10,095 | 10,125 | 10,066 | 10,180 | 10,197 | 10,209 | 10,167 | 10,227 | 10,036 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,706 | $ 10,054 | $ 10,748 | 11,251 | 10,932 | $ 11,974 | 12,253 | 12,087 | 11,911 | 11,647 | 11,542 | 11,353 | 11,625 | 11,512 | 11,652 | 11,680 | 11,253 | 10,768 | 11,200 | 11,267 | 11,256 | 11,274 | 11,392 | 11,323 | 11,063 | 11,342 | 11,001 | 11,038 | 10,641 | 10,759 | 11,244 | 11,544 | 11,261 | 11,490 | 11,427 | 11,870 | 12,197 | 12,366 | 12,643 | 12,652 | 12,636 | 12,647 | 12,756 | 12,764 | 12,637 | 12,546 | 12,498 | 12,394 | 12,540 | 12,704 | 12,784 | 12,740 | 12,576 | 12,621 | 12,644 | 12,717 | 12,498 | 12,394 | 12,280 | 12,039 | 12,278 | 12,097 | 11,884 | 11,866 | 11,869 | 11,830 | 11,882 | 11,619 | 11,585 | 11,423 | 11,235 | 11,036 | 11,024 | 10,874 | 10,658 | 10,748 | 10,794 | 10,741 | 10,719 | 10,735 | 10,676 | 10,694 | 10,797 | 10,901 | 10,854 | 10,870 | 10,857 | 10,895 | 10,802 | 10,749 | 10,758 | 10,675 | 10,588 | 10,591 | 10,510 | 10,473 | 10,442 | 10,682 | 10,753 | 10,751 | 10,739 | 10,652 | 10,467 | 10,459 | 10,388 | 10,263 | 10,190 | 10,079 | 10,130 | 10,167 | 10,134 | 10,095 | 10,125 | 10,066 | 10,180 | 10,197 | 10,209 | 10,167 | 10,227 | 10,036 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2024 Term Muni Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,166 | $ 10,008 | 10,542 | 11,183 | $ 11,646 | 11,610 | 11,581 | 11,548 | 11,512 | 11,476 | 11,439 | 11,408 | 11,385 | 11,363 | 11,341 | 11,297 | 11,220 | 11,194 | 11,173 | 11,153 | 11,105 | 11,103 | 11,138 | 11,031 | 11,123 | 11,032 | 11,035 | 10,895 | 10,878 | 11,001 | 11,125 | 11,033 | 11,035 | 10,920 | 11,008 | 11,155 | 11,189 | 11,358 | 11,359 | 11,358 | 11,366 | 11,397 | 11,403 | 11,360 | 11,360 | 11,357 | 11,320 | 11,289 | 11,359 | 11,328 | 11,305 | 11,269 | 11,286 | 11,278 | 11,288 | 11,188 | 11,163 | 10,842 | 10,858 | 11,088 | 11,038 | 10,911 | 10,871 | 10,855 | 10,804 | 10,893 | 10,841 | 10,730 | 10,674 | 10,541 | 10,459 | 10,408 | 10,290 | 10,052 | 10,084 | 10,151 | 10,149 | 10,100 | 10,086 | 9,944 | |||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Dec 2024 Index™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2025 Term Muni Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,114 | $ 10,561 | 11,028 | $ 11,536 | 11,534 | 11,517 | 11,463 | 11,397 | 11,341 | 11,310 | 11,309 | 11,309 | 11,303 | 11,300 | 11,224 | 11,055 | 11,091 | 11,091 | 11,072 | 11,019 | 11,068 | 11,121 | 10,951 | 11,127 | 10,998 | 10,976 | 10,771 | 10,766 | 10,966 | 11,142 | 10,994 | 11,010 | 10,866 | 11,005 | 11,208 | 11,252 | 11,497 | 11,494 | 11,480 | 11,495 | 11,546 | 11,556 | 11,491 | 11,485 | 11,483 | 11,427 | 11,389 | 11,520 | 11,490 | 11,460 | 11,401 | 11,414 | 11,404 | 11,413 | 11,279 | 11,251 | 10,875 | 10,918 | 11,207 | 11,146 | 10,971 | 10,929 | 10,915 | 10,866 | 10,981 | 10,883 | 10,763 | 10,718 | 10,547 | 10,446 | 10,386 | 10,249 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Dec 2025 Index™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2026 Term Muni Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,041 | 10,427 | $ 10,998 | 11,038 | 10,996 | 10,907 | 10,821 | 10,745 | 10,739 | 10,769 | 10,783 | 10,778 | 10,790 | 10,689 | 10,437 | 10,537 | 10,558 | 10,540 | 10,484 | 10,560 | 10,624 | 10,429 | 10,636 | 10,464 | 10,428 | 10,179 | 10,187 | 10,441 | 10,628 | 10,437 | 10,479 | 10,330 | 10,510 | 10,742 | 10,786 | 11,062 | 11,052 | 11,021 | 11,039 | 11,107 | 11,123 | 11,046 | 11,036 | 11,026 | 10,961 | 10,913 | 11,073 | 11,032 | 10,989 | 10,891 | 10,912 | 10,901 | 10,914 | 10,755 | 10,717 | 10,351 | 10,420 | 10,760 | 10,662 | 10,461 | 10,421 | 10,407 | 10,391 | 10,506 | 10,352 | 10,251 | 10,208 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2026 Index™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2027 Term Muni Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,062 | 10,383 | $ 11,014 | 11,080 | 11,017 | 10,902 | 10,802 | 10,706 | 10,740 | 10,800 | 10,826 | 10,818 | 10,848 | 10,712 | 10,371 | 10,545 | 10,592 | 10,575 | 10,511 | 10,617 | 10,674 | 10,458 | 10,690 | 10,470 | 10,428 | 10,117 | 10,138 | 10,451 | 10,659 | 10,420 | 10,484 | 10,320 | 10,543 | 10,824 | 10,868 | 11,185 | 11,173 | 11,117 | 11,144 | 11,231 | 11,258 | 11,165 | 11,150 | 11,129 | 11,050 | 10,994 | 11,198 | 11,148 | 11,091 | 10,958 | 10,989 | 10,992 | 11,029 | 10,844 | 10,799 | 10,394 | 10,496 | 10,879 | 10,747 | 10,522 | 10,477 | 10,465 | 10,460 | 10,586 | 10,396 | 10,297 | 10,255 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2027 Index™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2028 Term Muni Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,066 | 10,320 | $ 10,997 | 11,096 | 11,020 | 10,880 | 10,772 | 10,659 | 10,733 | 10,821 | 10,849 | 10,842 | 10,885 | 10,707 | 10,285 | 10,529 | 10,602 | 10,585 | 10,514 | 10,645 | 10,696 | 10,466 | 10,719 | 10,456 | 10,402 | 10,035 | 10,066 | 10,425 | 10,640 | 10,360 | 10,450 | 10,274 | 10,545 | 10,873 | 10,916 | 11,267 | 11,251 | 11,177 | 11,211 | 11,315 | 11,351 | 11,242 | 11,222 | 11,197 | 11,103 | 11,040 | 11,281 | 11,228 | 11,157 | 10,997 | 11,030 | 11,043 | 11,103 | 10,901 | 10,845 | 10,397 | 10,538 | 10,959 | 10,803 | 10,556 | 10,510 | 10,505 | 10,511 | 10,643 | 10,428 | 10,321 | 10,276 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2028 Index™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2029 Term Muni Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,559 | $ 10,219 | 10,352 | 10,269 | 10,125 | 10,025 | 9,899 | 10,003 | 10,116 | 10,145 | 10,148 | 10,191 | 9,976 | 9,507 | 9,806 | 9,911 | 9,894 | 9,822 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2029 Index™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares 0-5 Year TIPS Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,256 | $ 9,984 | 10,237 | 10,493 | 11,822 | $ 12,654 | 12,710 | 12,584 | 12,512 | 12,398 | 12,330 | 12,218 | 12,218 | 12,152 | 12,175 | 12,119 | 11,990 | 11,866 | 11,842 | 11,829 | 11,772 | 11,794 | 11,879 | 11,849 | 11,631 | 11,675 | 11,598 | 11,621 | 11,565 | 11,450 | 11,788 | 11,972 | 11,758 | 11,936 | 11,886 | 11,889 | 11,980 | 11,858 | 11,924 | 11,885 | 11,867 | 11,786 | 11,790 | 11,786 | 11,634 | 11,631 | 11,536 | 11,441 | 11,392 | 11,380 | 11,320 | 11,216 | 11,148 | 11,173 | 11,190 | 11,062 | 10,981 | 10,899 | 10,827 | 10,700 | 10,876 | 10,820 | 10,774 | 10,697 | 10,684 | 10,652 | 10,676 | 10,620 | 10,618 | 10,548 | 10,446 | 10,367 | 10,348 | 10,275 | 10,256 | 10,298 | 10,323 | 10,270 | 10,287 | 10,270 | 10,233 | 10,183 | 10,187 | 10,215 | 10,196 | 10,213 | 10,194 | 10,204 | 10,175 | 10,146 | 10,190 | 10,198 | 10,197 | 10,182 | 10,172 | 10,127 | 10,095 | 10,147 | 10,143 | 10,077 | 10,103 | 10,113 | 10,020 | 10,031 | 10,028 | 9,927 | 9,903 | 9,849 | 9,871 | 9,887 | 9,884 | 9,892 | 9,917 | 9,948 | 9,953 | 9,958 | 9,889 | 9,924 | 9,942 | 9,852 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE U.S. Treasury 0-5 Year Inflation Linked Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares TIPS Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,346 | $ 10,026 | 10,452 | 10,771 | 11,599 | $ 12,505 | 12,732 | 12,546 | 12,449 | 12,227 | 12,135 | 11,933 | 12,112 | 12,033 | 12,162 | 12,114 | 11,824 | 11,519 | 11,818 | 11,926 | 11,907 | 11,947 | 12,099 | 12,083 | 11,741 | 11,908 | 11,693 | 11,814 | 11,602 | 11,460 | 12,272 | 12,607 | 12,081 | 12,476 | 12,601 | 12,864 | 13,107 | 12,996 | 13,265 | 13,223 | 13,106 | 12,959 | 13,052 | 13,075 | 12,736 | 12,659 | 12,507 | 12,335 | 12,358 | 12,560 | 12,519 | 12,377 | 12,240 | 12,319 | 12,365 | 12,231 | 11,957 | 11,825 | 11,789 | 11,470 | 11,675 | 11,516 | 11,279 | 11,237 | 11,220 | 11,191 | 11,345 | 11,082 | 11,042 | 10,948 | 10,735 | 10,541 | 10,542 | 10,403 | 10,297 | 10,447 | 10,558 | 10,482 | 10,533 | 10,491 | 10,446 | 10,344 | 10,445 | 10,535 | 10,440 | 10,426 | 10,404 | 10,471 | 10,361 | 10,315 | 10,414 | 10,418 | 10,357 | 10,362 | 10,314 | 10,228 | 10,238 | 10,438 | 10,480 | 10,423 | 10,470 | 10,380 | 10,169 | 10,241 | 10,206 | 10,026 | 9,915 | 9,770 | 9,848 | 9,858 | 9,833 | 9,892 | 9,968 | 9,947 | 10,045 | 10,128 | 10,054 | 10,102 | 10,225 | 9,913 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE U.S. Treasury Inflation Linked Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares U.S. Treasury Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | 10,387 | $ 10,081 | 10,396 | 10,804 | 10,313 | $ 11,045 | 11,315 | 11,181 | 11,040 | 10,802 | 10,695 | 10,542 | 10,782 | 10,724 | 10,867 | 10,880 | 10,540 | 10,189 | 10,547 | 10,602 | 10,638 | 10,719 | 10,845 | 10,788 | 10,484 | 10,735 | 10,475 | 10,527 | 10,253 | 10,399 | 10,769 | 11,046 | 10,871 | 10,967 | 10,949 | 11,298 | 11,659 | 11,738 | 11,949 | 12,025 | 11,932 | 11,940 | 12,072 | 12,093 | 11,932 | 11,837 | 11,814 | 11,725 | 11,858 | 12,120 | 12,248 | 12,277 | 12,234 | 12,351 | 12,331 | 12,469 | 12,329 | 12,316 | 12,350 | 12,303 | 11,925 | 11,618 | 11,339 | 11,403 | 11,436 | 11,429 | 11,529 | 11,148 | 11,161 | 11,060 | 10,835 | 10,632 | 10,660 | 10,611 | 10,296 | 10,345 | 10,442 | 10,363 | 10,407 | 10,405 | 10,312 | 10,298 | 10,376 | 10,520 | 10,487 | 10,502 | 10,515 | 10,606 | 10,492 | 10,474 | 10,492 | 10,424 | 10,352 | 10,356 | 10,305 | 10,283 | 10,293 | 10,575 | 10,693 | 10,706 | 10,766 | 10,726 | 10,495 | 10,495 | 10,506 | 10,490 | 10,397 | 10,180 | 10,197 | 10,239 | 10,276 | 10,187 | 10,182 | 10,098 | 10,188 | 10,207 | 10,261 | 10,196 | 10,356 | 10,095 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE<sup>®</sup> U.S. Treasury Core Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2024 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 10,102 | $ 10,640 | 10,622 | 10,595 | 10,556 | 10,508 | 10,466 | 10,420 | 10,377 | 10,335 | 10,303 | 10,260 | 10,203 | 10,146 | 10,065 | 10,020 | 9,975 | 9,965 | 9,973 | 9,956 | 9,839 | 9,875 | 9,825 | 9,800 | 9,752 | 9,764 | 9,871 | 9,943 | 9,905 | 9,969 | 9,903 | 9,957 | 10,134 | 10,187 | 10,279 | 10,305 | 10,309 | 10,366 | 10,389 | 10,394 | 10,356 | 10,389 | 10,372 | 10,355 | 10,361 | 10,413 | 10,421 | 10,409 | 10,399 | 10,420 | 10,419 | 10,429 | 10,404 | 10,389 | 10,361 | 10,345 | 10,103 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2024 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2025 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,751 | $ 10,353 | 10,338 | 10,273 | 10,208 | 10,132 | 10,089 | 10,035 | 10,028 | 9,994 | 10,013 | 9,971 | 9,875 | 9,790 | 9,747 | 9,707 | 9,675 | 9,735 | 9,776 | 9,747 | 9,567 | 9,675 | 9,582 | 9,576 | 9,476 | 9,487 | 9,652 | 9,797 | 9,720 | 9,781 | 9,709 | 9,802 | 10,050 | 10,112 | 10,230 | 10,258 | 10,257 | 10,334 | 10,384 | 10,401 | 10,331 | 10,366 | 10,339 | 10,297 | 10,330 | 10,448 | 10,471 | 10,459 | 10,444 | 10,486 | 10,483 | 10,500 | 10,462 | 10,442 | 10,415 | 10,391 | 10,116 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2025 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2026 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,498 | $ 10,105 | 10,153 | 10,072 | 9,982 | 9,866 | 9,809 | 9,737 | 9,783 | 9,756 | 9,819 | 9,782 | 9,650 | 9,517 | 9,532 | 9,507 | 9,481 | 9,573 | 9,634 | 9,580 | 9,361 | 9,522 | 9,386 | 9,393 | 9,236 | 9,266 | 9,490 | 9,708 | 9,577 | 9,644 | 9,568 | 9,719 | 10,014 | 10,072 | 10,211 | 10,251 | 10,227 | 10,315 | 10,398 | 10,423 | 10,324 | 10,342 | 10,307 | 10,247 | 10,313 | 10,485 | 10,532 | 10,518 | 10,495 | 10,563 | 10,551 | 10,579 | 10,521 | 10,503 | 10,475 | 10,443 | 10,131 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2026 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2027 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,233 | $ 9,853 | 9,960 | 9,871 | 9,768 | 9,613 | 9,544 | 9,450 | 9,545 | 9,514 | 9,612 | 9,579 | 9,405 | 9,217 | 9,305 | 9,297 | 9,275 | 9,386 | 9,469 | 9,403 | 9,154 | 9,356 | 9,187 | 9,215 | 9,023 | 9,067 | 9,342 | 9,594 | 9,420 | 9,497 | 9,426 | 9,635 | 9,963 | 10,011 | 10,174 | 10,216 | 10,161 | 10,250 | 10,367 | 10,398 | 10,258 | 10,238 | 10,192 | 10,111 | 10,224 | 10,458 | 10,530 | 10,528 | 10,501 | 10,600 | 10,579 | 10,628 | 10,556 | 10,545 | 10,525 | 10,490 | 10,145 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2027 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2028 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,033 | $ 9,649 | 9,814 | 9,719 | 9,611 | 9,423 | 9,341 | 9,228 | 9,369 | 9,331 | 9,455 | 9,426 | 9,218 | 8,985 | 9,145 | 9,149 | 9,140 | 9,259 | 9,350 | 9,281 | 9,008 | 9,233 | 9,027 | 9,076 | 8,839 | 8,904 | 9,219 | 9,512 | 9,308 | 9,390 | 9,325 | 9,587 | 9,939 | 9,976 | 10,159 | 10,196 | 10,123 | 10,211 | 10,344 | 10,379 | 10,218 | 10,171 | 10,127 | 10,043 | 10,181 | 10,435 | 10,524 | 10,539 | 10,509 | 10,629 | 10,603 | 10,676 | 10,593 | 10,586 | 10,570 | 10,518 | 10,159 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2028 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2029 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 8,858 | $ 9,490 | 9,697 | 9,597 | 9,486 | 9,279 | 9,187 | 9,064 | 9,238 | 9,193 | 9,332 | 9,301 | 9,057 | 8,777 | 9,011 | 9,030 | 9,038 | 9,158 | 9,253 | 9,187 | 8,895 | 9,138 | 8,913 | 8,984 | 8,727 | 8,807 | 9,157 | 9,476 | 9,252 | 9,337 | 9,269 | 9,571 | 9,937 | 9,973 | 10,173 | 10,203 | 10,117 | 10,183 | 10,331 | 10,367 | 10,183 | 10,100 | 10,063 | 9,968 | 10,148 | 10,428 | 10,546 | 10,573 | 10,542 | 10,686 | 10,655 | 10,756 | 10,661 | 10,650 | 10,647 | 10,570 | 10,175 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2029 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2030 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 7,947 | $ 8,532 | 8,762 | 8,660 | 8,551 | 8,338 | 8,242 | 8,117 | 8,309 | 8,258 | 8,404 | 8,386 | 8,129 | 7,840 | 8,134 | 8,170 | 8,196 | 8,314 | 8,421 | 8,354 | 8,067 | 8,332 | 8,081 | 8,174 | 7,905 | 8,005 | 8,373 | 8,697 | 8,451 | 8,533 | 8,469 | 8,822 | 9,191 | 9,229 | 9,442 | 9,477 | 9,373 | 9,408 | 9,568 | 9,607 | 9,406 | 9,286 | 9,246 | 9,141 | 9,354 | 9,653 | 9,801 | 9,849 | 9,819 | 9,976 | 9,947 | 10,071 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2031 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 8,254 | $ 8,858 | 9,131 | 9,019 | 8,904 | 8,665 | 8,560 | 8,421 | 8,659 | 8,597 | 8,778 | 8,768 | 8,458 | 8,106 | 8,507 | 8,564 | 8,611 | 8,724 | 8,855 | 8,773 | 8,466 | 8,749 | 8,475 | 8,570 | 8,267 | 8,386 | 8,812 | 9,171 | 8,890 | 8,974 | 8,918 | 9,336 | 9,734 | 9,774 | 10,002 | 10,054 | 9,922 | 9,954 | 10,130 | 10,170 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2031 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2032 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,148 | $ 9,835 | 10,164 | 10,035 | 9,894 | 9,614 | 9,495 | 9,328 | 9,613 | 9,545 | 9,742 | 9,735 | 9,375 | 8,969 | 9,448 | 9,528 | 9,592 | 9,707 | 9,848 | 9,770 | 9,416 | 9,725 | 9,425 | 9,525 | 9,185 | 9,348 | 9,836 | 10,246 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2032 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2033 Term Treasury ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,461 | $ 10,149 | 10,497 | 10,359 | 10,213 | 9,925 | 9,803 | 9,626 | 9,939 | 9,873 | 10,081 | 10,092 | 9,696 | 9,258 | 9,795 | 9,884 | 9,960 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2033 Maturity US Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds 2028 Term High Yield and Income ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,780 | $ 11,248 | 11,282 | 11,121 | 10,963 | 10,777 | 10,671 | 10,577 | 10,658 | 10,538 | 10,502 | 10,509 | 10,133 | 9,693 | 9,903 | 9,885 | 9,746 | 9,605 | 9,707 | 9,600 | 9,479 | 9,627 | 9,273 | 9,343 | 9,183 | 8,894 | 9,278 | 9,546 | 8,969 | 9,672 | 9,665 | 10,052 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 2028 Term High Yield and Income Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds 2029 Term High Yield and Income ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,597 | $ 11,196 | 11,250 | 11,092 | 10,909 | 10,699 | 10,585 | 10,471 | 10,595 | 10,443 | 10,441 | 10,424 | 9,995 | 9,483 | 9,759 | 9,758 | 9,620 | 9,454 | 9,589 | 9,473 | 9,319 | 9,492 | 9,102 | 9,189 | 8,987 | 8,721 | 9,201 | 9,477 | 8,831 | 9,585 | 9,559 | 10,027 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 2029 Term High Yield and Income Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds 2030 Term High Yield and Income ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | $ 9,963 | $ 11,552 | 11,671 | 11,511 | 11,296 | 11,074 | 10,970 | 10,845 | 10,953 | 10,790 | 10,814 | 10,811 | 10,409 | 9,849 | 10,171 | 10,164 | 10,040 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 2030 Term High Yield and Income Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2025 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,980 | $ 10,645 | 10,600 | 10,527 | 10,476 | 10,448 | 10,418 | 10,366 | 10,302 | 10,249 | 10,211 | 10,165 | 10,103 | 10,036 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2025 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2026 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,954 | $ 10,675 | 10,679 | 10,580 | 10,515 | 10,448 | 10,400 | 10,313 | 10,297 | 10,250 | 10,259 | 10,210 | 10,111 | 10,006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2026 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2027 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,934 | $ 10,692 | 10,744 | 10,629 | 10,561 | 10,449 | 10,379 | 10,269 | 10,295 | 10,243 | 10,292 | 10,244 | 10,097 | 9,959 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2027 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2028 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,910 | $ 10,669 | 10,773 | 10,644 | 10,583 | 10,427 | 10,349 | 10,216 | 10,286 | 10,223 | 10,306 | 10,263 | 10,076 | 9,912 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2028 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2029 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,915 | $ 10,697 | 10,847 | 10,716 | 10,654 | 10,474 | 10,389 | 10,244 | 10,337 | 10,266 | 10,378 | 10,327 | 10,098 | 9,896 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2029 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2030 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,861 | $ 10,696 | 10,890 | 10,747 | 10,664 | 10,452 | 10,369 | 10,193 | 10,340 | 10,247 | 10,407 | 10,338 | 10,067 | 9,802 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2030 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2031 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,839 | $ 10,679 | 10,909 | 10,757 | 10,666 | 10,437 | 10,344 | 10,159 | 10,339 | 10,251 | 10,429 | 10,357 | 10,051 | 9,747 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2031 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2032 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,825 | $ 10,668 | 10,930 | 10,760 | 10,667 | 10,425 | 10,327 | 10,133 | 10,343 | 10,256 | 10,431 | 10,376 | 10,038 | 9,709 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2032 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Oct 2033 Term TIPS ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,808 | $ 10,620 | 10,906 | 10,724 | 10,634 | 10,384 | 10,291 | 10,085 | 10,330 | 10,243 | 10,420 | 10,374 | 10,026 | 9,663 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE 2033 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2032 Term Corporate ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,923 | $ 11,147 | 11,421 | 11,232 | 11,056 | 10,776 | 10,687 | 10,482 | 10,762 | 10,607 | 10,785 | 10,833 | 10,348 | 9,711 | 10,230 | 10,298 | 10,265 | 10,253 | 10,412 | 10,321 | 9,966 | 10,338 | 9,923 | 9,979 | 9,464 | 9,521 | 10,106 | 10,523 | 10,082 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg December 2032 Maturity Corporate Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares iBonds Dec 2033 Term Corporate ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,000 | 9,654 | $ 10,846 | 11,134 | 10,945 | 10,781 | 10,498 | 10,413 | 10,208 | 10,494 | 10,340 | 10,527 | 10,576 | 10,098 | 9,443 | 9,962 | 10,033 | 9,997 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg December 2033 Maturity Corporate Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares Yield Optimized Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| FR TSR Growth 10k - Benchmark 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,660 | $ 10,033 | $ 10,746 | $ 11,345 | $ 11,259 | $ 12,489 | $ 12,681 | $ 12,479 | $ 12,315 | $ 12,079 | $ 12,038 | $ 11,841 | $ 12,054 | $ 11,924 | $ 11,987 | $ 11,989 | $ 11,623 | $ 11,147 | $ 11,468 | $ 11,505 | $ 11,436 | $ 11,353 | $ 11,426 | $ 11,374 | $ 11,195 | $ 11,360 | $ 11,107 | $ 11,159 | $ 10,829 | $ 10,787 | $ 11,123 | $ 11,468 | $ 11,095 | $ 11,442 | $ 11,319 | $ 11,752 | $ 12,029 | $ 12,182 | $ 12,440 | $ 12,380 | $ 12,404 | $ 12,438 | $ 12,561 | $ 12,551 | $ 12,442 | $ 12,358 | $ 12,339 | $ 12,227 | $ 12,325 | $ 12,515 | $ 12,605 | $ 12,537 | $ 12,373 | $ 12,406 | $ 12,452 | $ 12,477 | $ 12,241 | $ 12,198 | $ 12,000 | $ 11,644 | $ 12,311 | $ 12,254 | $ 12,085 | $ 11,982 | $ 11,965 | $ 11,923 | $ 11,952 | $ 11,715 | $ 11,674 | $ 11,409 | $ 11,301 | $ 11,092 | $ 11,050 | $ 10,738 | $ 10,668 | $ 10,815 | $ 10,802 | $ 10,776 | $ 10,690 | $ 10,708 | $ 10,674 | $ 10,710 | $ 10,836 | $ 10,918 | $ 10,865 | $ 10,883 | $ 10,873 | $ 10,885 | $ 10,809 | $ 10,735 | $ 10,743 | $ 10,663 | $ 10,573 | $ 10,572 | $ 10,480 | $ 10,423 | $ 10,354 | $ 10,524 | $ 10,593 | $ 10,563 | $ 10,523 | $ 10,440 | $ 10,286 | $ 10,285 | $ 10,173 | $ 10,014 | $ 9,939 | $ 9,908 | $ 9,985 | $ 10,054 | $ 9,964 | $ 9,980 | $ 10,044 | $ 9,999 | $ 10,125 | $ 10,154 | $ 10,148 | $ 10,148 | $ 10,129 | $ 10,011 | |||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Morningstar<sup>®</sup> U.S. Bond Market Yield-Optimized Index℠ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iShares Core Total USD Bond Market ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report, Average Annual Return (Details) | 1 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 8 Months Ended | 11 Months Ended | 12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||||
| Nov. 30, 2018 | Nov. 30, 2014 | Mar. 07, 2022 | Feb. 24, 2020 | Mar. 31, 2018 | May 09, 2023 | Apr. 30, 2019 | Jun. 27, 2023 | Jun. 21, 2023 | Jul. 05, 2022 | Jun. 27, 2022 | Jul. 12, 2021 | Jul. 13, 2020 | Sep. 30, 2023 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| C000171898 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000204675 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000204676 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000210857 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000210858 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000093655 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000012093 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000110086 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243457 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243458 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243459 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243460 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243461 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243462 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243463 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243464 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000243456 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000138243 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| C000141927 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Fund | ||||||||||||||||
| Without Sales Load [Member] | C000171898 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 3.48% | 1.19% | 2.17% | ||||||||||||||
| Without Sales Load [Member] | C000204675 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 4.09% | 0.91% | 2.42% | ||||||||||||||
| Without Sales Load [Member] | C000204676 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.04% | 0.92% | 1.59% | ||||||||||||||
| Without Sales Load [Member] | C000210857 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.87% | 0.93% | 1.66% | ||||||||||||||
| Without Sales Load [Member] | C000210858 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.51% | 0.88% | 1.71% | ||||||||||||||
| Without Sales Load [Member] | C000242692 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.38% | 2.39% | |||||||||||||||
| Without Sales Load [Member] | C000093655 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.67% | 3.49% | 2.38% | ||||||||||||||
| Without Sales Load [Member] | C000012093 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.41% | 2.01% | 2.10% | ||||||||||||||
| Without Sales Load [Member] | C000110086 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.37% | (0.76%) | 0.92% | ||||||||||||||
| Without Sales Load [Member] | C000217185 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.46% | 1.42% | |||||||||||||||
| Without Sales Load [Member] | C000217186 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.71% | 0.70% | |||||||||||||||
| Without Sales Load [Member] | C000217187 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.12% | 0.19% | |||||||||||||||
| Without Sales Load [Member] | C000217188 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.84% | (0.36%) | |||||||||||||||
| Without Sales Load [Member] | C000217189 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 7.36% | (0.80%) | |||||||||||||||
| Without Sales Load [Member] | C000217190 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.09% | (1.15%) | |||||||||||||||
| Without Sales Load [Member] | C000220170 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.76% | (3.67%) | |||||||||||||||
| Without Sales Load [Member] | C000228602 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.22% | (3.67%) | |||||||||||||||
| Without Sales Load [Member] | C000236733 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.58% | (0.75%) | |||||||||||||||
| Without Sales Load [Member] | C000243160 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.58% | 1.11% | |||||||||||||||
| Without Sales Load [Member] | C000234589 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 15.60% | 4.33% | |||||||||||||||
| Without Sales Load [Member] | C000234590 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 17.88% | 4.25% | |||||||||||||||
| Without Sales Load [Member] | C000243158 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 17.12% | 11.02% | |||||||||||||||
| Without Sales Load [Member] | C000243457 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.98% | 5.57% | |||||||||||||||
| Without Sales Load [Member] | C000243458 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.60% | 5.84% | |||||||||||||||
| Without Sales Load [Member] | C000243459 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 7.27% | 5.98% | |||||||||||||||
| Without Sales Load [Member] | C000243460 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 7.60% | 5.82% | |||||||||||||||
| Without Sales Load [Member] | C000243461 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.02% | 6.14% | |||||||||||||||
| Without Sales Load [Member] | C000243462 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.03% | 6.12% | |||||||||||||||
| Without Sales Load [Member] | C000243463 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.47% | 5.97% | |||||||||||||||
| Without Sales Load [Member] | C000243464 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.78% | 5.88% | |||||||||||||||
| Without Sales Load [Member] | C000243456 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 9.84% | 5.51% | |||||||||||||||
| Without Sales Load [Member] | C000236700 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 14.76% | 4.69% | |||||||||||||||
| Without Sales Load [Member] | C000243159 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 14.79% | 6.14% | |||||||||||||||
| Without Sales Load [Member] | C000138243 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 12.09% | 1.02% | 2.40% | ||||||||||||||
| Without Sales Load [Member] | C000141927 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 11.18% | 0.16% | 1.79% | ||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 9.52% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.09% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.18% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 9.52% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.09% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.35% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 9.52% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.09% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.67% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 9.52% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.09% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.69% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 9.52% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.09% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.69% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 9.52% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.86% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.24%) | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.52% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.24%) | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.52% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.24%) | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.52% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.89%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.89%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.89%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.89%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.89%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.89%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (1.79%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (2.05%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.71% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 3.81% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.30%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.30%) | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 4.41% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.06% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.06% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.06% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.06% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.66% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.66% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.66% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.66% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| Average Annual Return, Percent | 10.55% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.66% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 3.01% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 4.41% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 0.18% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.82% | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Average Annual Return, Percent | 11.20% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 0.18% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.82% | ||||||||||||||||
| iShares iBonds Dec 2024 Term Muni Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Dec 2024 Index™ | ||||||||||||||||
| Average Annual Return, Percent | 3.79% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.42% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.33% | ||||||||||||||||
| iShares iBonds Dec 2025 Term Muni Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Dec 2025 Index™ | ||||||||||||||||
| Average Annual Return, Percent | 4.35% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.11% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.42% | ||||||||||||||||
| iShares iBonds Dec 2026 Term Muni Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2026 Index™ | ||||||||||||||||
| Average Annual Return, Percent | 5.38% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.11% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.72% | ||||||||||||||||
| iShares iBonds Dec 2027 Term Muni Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2027 Index™ | ||||||||||||||||
| Average Annual Return, Percent | 6.20% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.03% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.75% | ||||||||||||||||
| iShares iBonds Dec 2028 Term Muni Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2028 Index™ | ||||||||||||||||
| Average Annual Return, Percent | 6.92% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 0.92% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.73% | ||||||||||||||||
| iShares iBonds Dec 2029 Term Muni Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P Municipal Bond Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | S&P AMT-Free Municipal Series Callable-Adjusted Dec 2029 Index™ | ||||||||||||||||
| Average Annual Return, Percent | 7.49% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.48% | ||||||||||||||||
| iShares 0-5 Year TIPS Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE U.S. Treasury 0-5 Year Inflation Linked Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 6.64% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 3.44% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.38% | ||||||||||||||||
| iShares TIPS Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE U.S. Treasury Inflation Linked Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 8.56% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.19% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.26% | ||||||||||||||||
| iShares U.S. Treasury Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE<sup>®</sup> U.S. Treasury Core Bond Index | ||||||||||||||||
| Average Annual Return, Percent | 8.41% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.69%) | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1% | ||||||||||||||||
| iShares iBonds Dec 2024 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2024 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 4.86% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.33% | ||||||||||||||||
| iShares iBonds Dec 2025 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2025 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 5.76% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 0.74% | ||||||||||||||||
| iShares iBonds Dec 2026 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2026 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 6.18% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 0.22% | ||||||||||||||||
| iShares iBonds Dec 2027 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2027 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 6.90% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.32%) | ||||||||||||||||
| iShares iBonds Dec 2028 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2028 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 7.39% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.76%) | ||||||||||||||||
| iShares iBonds Dec 2029 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2029 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 8.13% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (1.11%) | ||||||||||||||||
| iShares iBonds Dec 2030 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 8.82% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (3.63%) | ||||||||||||||||
| iShares iBonds Dec 2031 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2031 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.26% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (3.61%) | ||||||||||||||||
| iShares iBonds Dec 2032 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2032 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.66% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | (0.71%) | ||||||||||||||||
| iShares iBonds Dec 2033 Term Treasury ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2033 Maturity US Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.63% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 1.11% | ||||||||||||||||
| iShares iBonds 2028 Term High Yield and Income ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 2028 Term High Yield and Income Index | ||||||||||||||||
| Average Annual Return, Percent | 16.04% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 4.55% | ||||||||||||||||
| iShares iBonds 2029 Term High Yield and Income ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 2029 Term High Yield and Income Index | ||||||||||||||||
| Average Annual Return, Percent | 18.07% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 4.36% | ||||||||||||||||
| iShares iBonds 2030 Term High Yield and Income ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 2030 Term High Yield and Income Index | ||||||||||||||||
| Average Annual Return, Percent | 17.29% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 11.21% | ||||||||||||||||
| iShares iBonds Oct 2025 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2025 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 6.07% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.68% | ||||||||||||||||
| iShares iBonds Oct 2026 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2026 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 6.69% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.94% | ||||||||||||||||
| iShares iBonds Oct 2027 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2027 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 7.36% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.09% | ||||||||||||||||
| iShares iBonds Oct 2028 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2028 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 7.64% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.88% | ||||||||||||||||
| iShares iBonds Oct 2029 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2029 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 8.10% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.23% | ||||||||||||||||
| iShares iBonds Oct 2030 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2030 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.12% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.22% | ||||||||||||||||
| iShares iBonds Oct 2031 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2031 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.56% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.07% | ||||||||||||||||
| iShares iBonds Oct 2032 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2032 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.88% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.97% | ||||||||||||||||
| iShares iBonds Oct 2033 Term TIPS ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US Broad Market Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | ICE 2033 Maturity US Inflation-Linked Treasury Index | ||||||||||||||||
| Average Annual Return, Percent | 9.90% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 5.54% | ||||||||||||||||
| iShares iBonds Dec 2032 Term Corporate ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg December 2032 Maturity Corporate Index | ||||||||||||||||
| Average Annual Return, Percent | 14.79% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 4.75% | ||||||||||||||||
| iShares iBonds Dec 2033 Term Corporate ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg December 2033 Maturity Corporate Index | ||||||||||||||||
| Average Annual Return, Percent | 14.86% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 6.16% | ||||||||||||||||
| iShares Yield Optimized Bond ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| FR Notes - Benchmark total return 1 year w/o sales charge - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Morningstar<sup>®</sup> U.S. Bond Market Yield-Optimized Index℠ | ||||||||||||||||
| Average Annual Return, Percent | 12.04% | ||||||||||||||||
| FR Notes - Benchmark total return 5 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 0.86% | ||||||||||||||||
| FR Notes - Benchmark total return 10 year - 2 | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Average Annual Return, Percent | 2.25% | ||||||||||||||||
| iShares Core Total USD Bond Market ETF | |||||||||||||||||
| Average Annual Return [Line Items] | |||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Universal Index | ||||||||||||||||
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000171898 | New York | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.70% |
| C000171898 | California | |
| Holdings [Line Items] | |
| Percent of Total Investments | 17.80% |
| C000171898 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.60% |
| C000171898 | Massachusetts | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.30% |
| C000171898 | Florida | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8% |
| C000171898 | Washington | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.50% |
| C000171898 | Ohio | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.30% |
| C000171898 | Connecticut | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.10% |
| C000171898 | Rhode Island | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000171898 | Colorado | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.70% |
| C000171898 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.70% |
| C000171898 | AA+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000171898 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.60% |
| C000171898 | AA- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000171898 | A+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000171898 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000171898 | A- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000171898 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000171898 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (6.00%) |
| C000204675 | New York | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.50% |
| C000204675 | California | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13.10% |
| C000204675 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000204675 | Massachusetts | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000204675 | Washington | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000204675 | Ohio | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000204675 | Texas | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.70% |
| C000204675 | Illinois | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.80% |
| C000204675 | Virginia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.80% |
| C000204675 | Georgia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000204675 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.40% |
| C000204675 | AA+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.90% |
| C000204675 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.50% |
| C000204675 | AA- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| C000204675 | A+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000204675 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000204675 | A- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000204675 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| C000204675 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000204675 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000204676 | New York | |
| Holdings [Line Items] | |
| Percent of Total Investments | 8.90% |
| C000204676 | California | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11% |
| C000204676 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000204676 | Massachusetts | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.50% |
| C000204676 | Florida | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.90% |
| C000204676 | Washington | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000204676 | Texas | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10.80% |
| C000204676 | Illinois | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4% |
| C000204676 | Virginia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000204676 | Maryland | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000204676 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.60% |
| C000204676 | AA+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.80% |
| C000204676 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.40% |
| C000204676 | AA- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| C000204676 | A+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000204676 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000204676 | A- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000204676 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000204676 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000204676 | BBB+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000210857 | New York | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.90% |
| C000210857 | California | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.80% |
| C000210857 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000210857 | Florida | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000210857 | Washington | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000210857 | Ohio | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.60% |
| C000210857 | Texas | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.60% |
| C000210857 | Illinois | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000210857 | Virginia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000210857 | Maryland | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3% |
| C000210857 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28.70% |
| C000210857 | AA+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.60% |
| C000210857 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.80% |
| C000210857 | AA- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| C000210857 | A+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000210857 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000210857 | A- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000210857 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| C000210857 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000210858 | New York | |
| Holdings [Line Items] | |
| Percent of Total Investments | 9.80% |
| C000210858 | California | |
| Holdings [Line Items] | |
| Percent of Total Investments | 11.60% |
| C000210858 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.70% |
| C000210858 | Florida | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000210858 | Washington | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000210858 | Ohio | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.70% |
| C000210858 | Texas | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.10% |
| C000210858 | Illinois | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4% |
| C000210858 | Virginia | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.60% |
| C000210858 | Maryland | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000210858 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.60% |
| C000210858 | AA+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.40% |
| C000210858 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.20% |
| C000210858 | AA- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000210858 | A+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000210858 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000210858 | A- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000210858 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.60% |
| C000210858 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000210858 | BBB+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000242692 | New York | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.80% |
| C000242692 | California | |
| Holdings [Line Items] | |
| Percent of Total Investments | 13% |
| C000242692 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000242692 | Florida | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000242692 | Washington | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.30% |
| C000242692 | Ohio | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000242692 | Texas | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.90% |
| C000242692 | Illinois | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.10% |
| C000242692 | Maryland | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000242692 | North Carolina | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000242692 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.30% |
| C000242692 | AA+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.10% |
| C000242692 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000242692 | AA- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.50% |
| C000242692 | A+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000242692 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000242692 | A- | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000242692 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| C000242692 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 04/15/2028, 1.25 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 6.60% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 04/15/2029, 2.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.50% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 10/15/2028, 2.375 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.10% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 10/15/2027, 1.625 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 01/15/2025, 0.25 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 07/15/2025, 0.375 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 10/15/2025, 0.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 10/15/2026, 0.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.80% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 04/15/2027, 0.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.70% |
| C000093655 | U.S. Treasury Inflation Linked Notes, , 01/15/2028, 0.5 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.60% |
| C000093655 | 0-1 Year | |
| Holdings [Line Items] | |
| Percent of Total Investments | 21.10% |
| C000093655 | 1-2 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 18.40% |
| C000093655 | 2-3 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.10% |
| C000093655 | 3-4 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 21.60% |
| C000093655 | 4-5 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 19.80% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 04/15/2028, 1.25 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 04/15/2029, 2.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 10/15/2028, 2.375 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 10/15/2027, 1.625 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 01/15/2034, 1.75 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.80% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 07/15/2032, 0.625 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 01/15/2033, 1.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.70% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 07/15/2033, 1.375 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.50% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 01/15/2032, 0.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000012093 | U.S. Treasury Inflation Linked Notes, , 07/15/2031, 0.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000012093 | 0-1 Year | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.30% |
| C000012093 | 1-5 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 52.10% |
| C000012093 | 5-10 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 32.80% |
| C000012093 | 15-20 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.50% |
| C000012093 | 20-25 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000012093 | 25-30 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.90% |
| C000110086 | U.S. Treasury Notes, , 11/15/2031, 1.375 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 5.10% |
| C000110086 | U.S. Treasury Notes, , 11/15/2028, 3.125 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.20% |
| C000110086 | U.S. Treasury Notes, , 02/15/2029, 2.625 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000110086 | U.S. Treasury Bonds, , 02/15/2051, 1.875 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.70% |
| C000110086 | U.S. Treasury Notes, , 02/15/2028, 2.75 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.60% |
| C000110086 | U.S. Treasury Notes, , 11/30/2025, 0.375 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.30% |
| C000110086 | U.S. Treasury Notes, , 02/15/2027, 2.25 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.30% |
| C000110086 | U.S. Treasury Notes, , 08/31/2026, 0.75 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.90% |
| C000110086 | U.S. Treasury Notes, , 05/15/2026, 1.625 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.80% |
| C000110086 | U.S. Treasury Bonds, , 05/15/2046, 2.5 | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.60% |
| C000110086 | 1-5 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 57.60% |
| C000110086 | 5-10 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 20.50% |
| C000110086 | 15-20 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 7.20% |
| C000110086 | 0-1 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.50% |
| C000110086 | 10-15 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 1.20% |
| C000110086 | More than 20 Years | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12% |
| C000217185 | U.S. Treasury Notes4.511/30/2024 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000217185 | U.S. Treasury Notes1.511/30/2024 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000217185 | U.S. Treasury Notes0.7511/15/2024 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000217185 | U.S. Treasury Notes2.2511/15/2024 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000217185 | U.S. Treasury Notes112/15/2024 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000217185 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000217185 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 73% |
| C000217185 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.70% |
| C000217186 | U.S. Treasury Notes, , 11/30/2025, 0.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000217186 | U.S. Treasury Notes, , 05/31/2025, 0.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| C000217186 | U.S. Treasury Notes, , 06/15/2025, 2.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000217186 | U.S. Treasury Notes, , 09/30/2025, 3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000217186 | U.S. Treasury Notes, , 05/15/2025, 2.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000217186 | U.S. Treasury Notes, , 08/31/2025, 0.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000217186 | U.S. Treasury Notes, , 07/31/2025, 2.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000217186 | U.S. Treasury Notes, , 10/31/2025, 3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000217186 | U.S. Treasury Notes, , 03/15/2025, 1.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000217186 | U.S. Treasury Notes, , 02/15/2025, 1.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000217186 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000217186 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.70% |
| C000217187 | U.S. Treasury Notes, , 05/15/2026, 1.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000217187 | U.S. Treasury Notes, , 08/15/2026, 1.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000217187 | U.S. Treasury Notes, , 03/31/2026, 0.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000217187 | U.S. Treasury Notes, , 05/31/2026, 0.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000217187 | U.S. Treasury Notes, , 04/30/2026, 0.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000217187 | U.S. Treasury Notes, , 10/31/2026, 1.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000217187 | U.S. Treasury Notes, , 11/30/2026, 1.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000217187 | U.S. Treasury Notes, , 02/28/2026, 0.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000217187 | U.S. Treasury Notes, , 01/31/2026, 0.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000217187 | U.S. Treasury Notes, , 03/31/2026, 4.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000217187 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000217187 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.50% |
| C000217188 | U.S. Treasury Notes, , 02/15/2027, 2.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000217188 | U.S. Treasury Notes, , 09/30/2027, 4.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000217188 | U.S. Treasury Notes, , 02/28/2027, 1.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000217188 | U.S. Treasury Notes, , 11/15/2027, 2.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000217188 | U.S. Treasury Notes, , 10/31/2027, 0.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000217188 | U.S. Treasury Notes, , 04/30/2027, 2.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000217188 | U.S. Treasury Notes, , 01/31/2027, 1.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000217188 | U.S. Treasury Notes, , 06/30/2027, 3.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000217188 | U.S. Treasury Notes, , 04/15/2027, 4.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000217188 | U.S. Treasury Notes, , 04/30/2027, 0.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000217188 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000217188 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.90% |
| C000217189 | U.S. Treasury Notes, , 11/15/2028, 3.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000217189 | U.S. Treasury Notes, , 02/15/2028, 2.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000217189 | U.S. Treasury Notes, , 05/15/2028, 2.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000217189 | U.S. Treasury Notes, , 06/30/2028, 1.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000217189 | U.S. Treasury Notes, , 07/31/2028, 1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.90% |
| C000217189 | U.S. Treasury Notes, , 08/15/2028, 2.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000217189 | U.S. Treasury Notes, , 09/30/2028, 1.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000217189 | U.S. Treasury Notes, , 10/31/2028, 1.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000217189 | U.S. Treasury Notes, , 02/29/2028, 1.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000217189 | U.S. Treasury Notes, , 01/31/2028, 0.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| C000217189 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000217189 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.30% |
| C000217190 | U.S. Treasury Notes, , 02/15/2029, 2.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| C000217190 | U.S. Treasury Notes, , 01/31/2029, 4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000217190 | U.S. Treasury Notes, , 01/31/2029, 1.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000217190 | U.S. Treasury Notes, , 04/30/2029, 2.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000217190 | U.S. Treasury Notes, , 06/30/2029, 3.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000217190 | U.S. Treasury Notes, , 02/28/2029, 4.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000217190 | U.S. Treasury Notes, , 08/31/2029, 3.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000217190 | U.S. Treasury Notes, , 07/31/2029, 2.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000217190 | U.S. Treasury Notes, , 05/31/2029, 2.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000217190 | U.S. Treasury Notes, , 07/31/2029, 4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000217190 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000217190 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000220170 | U.S. Treasury Notes, , 08/15/2030, 0.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.80% |
| C000220170 | U.S. Treasury Notes, , 05/15/2030, 0.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| C000220170 | U.S. Treasury Notes, , 11/15/2030, 0.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| C000220170 | U.S. Treasury Notes, , 02/15/2030, 1.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000220170 | U.S. Treasury Notes, , 02/28/2030, 4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000220170 | U.S. Treasury Notes, , 09/30/2030, 4.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000220170 | U.S. Treasury Notes, , 11/30/2030, 4.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000220170 | U.S. Treasury Notes, , 04/30/2030, 3.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000220170 | U.S. Treasury Notes, , 05/31/2030, 3.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000220170 | U.S. Treasury Notes, , 08/31/2030, 4.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000220170 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000220170 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.30% |
| C000228602 | U.S. Treasury Notes, , 11/15/2031, 1.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.20% |
| C000228602 | U.S. Treasury Notes, , 08/15/2031, 1.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.60% |
| C000228602 | U.S. Treasury Notes, , 05/15/2031, 1.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17% |
| C000228602 | U.S. Treasury Notes, , 02/15/2031, 1.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| C000228602 | U.S. Treasury Notes, , 02/28/2031, 4.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| C000228602 | U.S. Treasury Notes, , 03/31/2031, 4.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| C000228602 | U.S. Treasury Notes, , 04/30/2031, 4.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000228602 | U.S. Treasury Notes, , 01/31/2031, 4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| C000228602 | U.S. Treasury Notes, , 07/31/2031, 4.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000228602 | U.S. Treasury Notes, , 08/31/2031, 3.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000228602 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000228602 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 97.60% |
| C000236733 | U.S. Treasury Notes, , 11/15/2032, 4.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.20% |
| C000236733 | U.S. Treasury Notes, , 05/15/2032, 2.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24.80% |
| C000236733 | U.S. Treasury Notes, , 02/15/2032, 1.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.80% |
| C000236733 | U.S. Treasury Notes, , 08/15/2032, 2.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.70% |
| C000236733 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000236733 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.50% |
| C000243160 | U.S. Treasury Notes, , 11/15/2033, 4.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000243160 | U.S. Treasury Notes, , 08/15/2033, 3.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.30% |
| C000243160 | U.S. Treasury Notes, , 02/15/2033, 3.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.60% |
| C000243160 | U.S. Treasury Notes, , 05/15/2033, 3.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.40% |
| C000243160 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000243160 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.30% |
| C000234589 | Uniti Group LP, , 02/15/2028, 10.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000234589 | Tenet Healthcare Corp., , 10/01/2028, 6.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000234589 | CCO Holdings LLC, , 02/01/2028, 5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000234589 | Venture Global LNG, Inc., , 06/01/2028, 8.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000234589 | Carnival Holdings Bermuda Ltd., , 05/01/2028, 10.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000234589 | TransDigm, Inc., , 08/15/2028, 6.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000234589 | Organon & Co., , 04/30/2028, 4.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000234589 | Sirius XM Radio, Inc., , 07/15/2028, 4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000234589 | Olympus Water US Holding Corp., , 11/15/2028, 9.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000234589 | Tenneco, Inc., , 11/17/2028, 8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000234589 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000234589 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000234589 | Baa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000234589 | Ba | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.90% |
| C000234589 | B | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 51.90% |
| C000234589 | Caa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000234590 | Medline Borrower LP, , 04/01/2029, 3.875 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000234590 | Cloud Software Group, Inc., , 03/31/2029, 6.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000234590 | Cloud Software Group, Inc., , 09/30/2029, 9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000234590 | Venture Global LNG, Inc., , 02/01/2029, 9.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000234590 | American Airlines, Inc., , 04/20/2029, 5.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000234590 | TransDigm, Inc., , 03/01/2029, 6.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000234590 | Neptune Bidco US, Inc., , 04/15/2029, 9.29 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000234590 | Medline Borrower LP, , 10/01/2029, 5.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000234590 | Staples, Inc., , 09/01/2029, 10.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000234590 | Rakuten Group, Inc., , 04/15/2029, 9.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000234590 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000234590 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000234590 | Baa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000234590 | Ba | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.70% |
| C000234590 | B | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 45.70% |
| C000234590 | Caa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.70% |
| C000243158 | HUB International Ltd., , 06/15/2030, 7.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000243158 | EMRLD Borrower LP, , 12/15/2030, 6.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000243158 | Intelsat Jackson Holdings SA, , 03/15/2030, 6.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000243158 | 1011778 BC ULC, , 10/15/2030, 4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000243158 | CCO Holdings LLC, , 03/01/2030, 4.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000243158 | DaVita, Inc., , 06/01/2030, 4.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000243158 | CCO Holdings LLC, , 08/15/2030, 4.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000243158 | AthenaHealth Group, Inc., , 02/15/2030, 6.5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000243158 | Caesars Entertainment, Inc., , 02/15/2030, 7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000243158 | Tenet Healthcare Corp., , 06/15/2030, 6.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000243158 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000243158 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000243158 | Baa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000243158 | Ba | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.50% |
| C000243158 | B | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44.10% |
| C000243158 | Caa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000243457 | U.S. Treasury Inflation Linked Notes, , 01/15/2025, 0.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22% |
| C000243457 | U.S. Treasury Inflation Linked Notes, , 07/15/2025, 0.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24% |
| C000243457 | U.S. Treasury Inflation Linked Notes, , 10/15/2025, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.20% |
| C000243457 | U.S. Treasury Inflation Linked Notes, , 04/15/2025, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.50% |
| C000243457 | U.S. Treasury Inflation Linked Bonds, , 01/15/2025, 2.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| C000243457 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000243457 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| C000243458 | U.S. Treasury Inflation Linked Notes, , 10/15/2026, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.30% |
| C000243458 | U.S. Treasury Inflation Linked Notes, , 07/15/2026, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.60% |
| C000243458 | U.S. Treasury Inflation Linked Notes, , 01/15/2026, 0.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.50% |
| C000243458 | U.S. Treasury Inflation Linked Notes, , 04/15/2026, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.50% |
| C000243458 | U.S. Treasury Inflation Linked Bonds, , 01/15/2026, 2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.90% |
| C000243458 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000243458 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| C000243459 | U.S. Treasury Inflation Linked Notes1.62510/15/2027 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24.90% |
| C000243459 | U.S. Treasury Inflation Linked Notes0.12504/15/2027 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.90% |
| C000243459 | U.S. Treasury Inflation Linked Notes0.37507/15/2027 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.40% |
| C000243459 | U.S. Treasury Inflation Linked Notes0.37501/15/2027 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.40% |
| C000243459 | U.S. Treasury Inflation Linked Bonds2.37501/15/2027 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000243459 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000243459 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.70% |
| C000243460 | U.S. Treasury Inflation Linked Notes1.2504/15/2028 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.10% |
| C000243460 | U.S. Treasury Inflation Linked Notes2.37510/15/2028 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24.40% |
| C000243460 | U.S. Treasury Inflation Linked Notes0.501/15/2028 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| C000243460 | U.S. Treasury Inflation Linked Notes0.7507/15/2028 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.20% |
| C000243460 | U.S. Treasury Inflation Linked Bonds1.7501/15/2028 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000243460 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000243460 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| C000243461 | U.S. Treasury Inflation Linked Notes2.12504/15/2029 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.50% |
| C000243461 | U.S. Treasury Inflation Linked Notes0.2507/15/2029 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.30% |
| C000243461 | U.S. Treasury Inflation Linked Notes0.87501/15/2029 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000243461 | U.S. Treasury Inflation Linked Notes1.62510/15/2029 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.50% |
| C000243461 | U.S. Treasury Inflation Linked Bonds3.87504/15/2029 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000243461 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000243461 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| C000243462 | U.S. Treasury Inflation Linked Notes, , 07/15/2030, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 52.40% |
| C000243462 | U.S. Treasury Inflation Linked Notes, , 01/15/2030, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000243462 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000243462 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100% |
| C000243463 | U.S. Treasury Inflation Linked Notes, , 07/15/2031, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 50.40% |
| C000243463 | U.S. Treasury Inflation Linked Notes, , 01/15/2031, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 49.60% |
| C000243463 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000243463 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100% |
| C000243464 | U.S. Treasury Inflation Linked Notes, , 07/15/2032, 0.625 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.60% |
| C000243464 | U.S. Treasury Inflation Linked Notes, , 01/15/2032, 0.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44.40% |
| C000243464 | U.S. Treasury Inflation Linked Bonds, , 04/15/2032, 3.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000243464 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000243464 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| C000243456 | U.S. Treasury Inflation Linked Notes, , 01/15/2033, 1.125 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 49.90% |
| C000243456 | U.S. Treasury Inflation Linked Notes, , 07/15/2033, 1.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 49.70% |
| C000243456 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000243456 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.60% |
| C000236700 | Warnermedia Holdings, Inc., , 03/15/2032, 4.279 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000236700 | Verizon Communications, Inc., , 03/15/2032, 2.355 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000236700 | AerCap Ireland Capital DAC, , 01/30/2032, 3.3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000236700 | Meta Platforms, Inc., , 08/15/2032, 3.85 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000236700 | Sprint Capital Corp., , 03/15/2032, 8.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000236700 | Oracle Corp., , 11/09/2032, 6.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000236700 | Amazon.com, Inc., , 04/13/2032, 3.6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000236700 | Amazon.com, Inc., , 12/01/2032, 4.7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000236700 | AT&T, Inc., , 02/01/2032, 2.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000236700 | Ford Motor Co., , 02/12/2032, 3.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000236700 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.40% |
| C000236700 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000236700 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000236700 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000236700 | Baa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 55.40% |
| C000236700 | Ba | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000236700 | Aa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000243159 | Pfizer Investment Enterprises Pte. Ltd., , 05/19/2033, 4.75 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000243159 | Amgen, Inc., , 03/02/2033, 5.25 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000243159 | AT&T, Inc., , 12/01/2033, 2.55 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000243159 | T-Mobile USA, Inc., , 07/15/2033, 5.05 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000243159 | Enbridge, Inc., , 03/08/2033, 5.7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000243159 | Philip Morris International, Inc., , 02/15/2033, 5.375 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000243159 | Banco Santander SA, , 08/08/2033, 6.921 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000243159 | BP Capital Markets America, Inc., , 02/13/2033, 4.812 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000243159 | Intel Corp., , 02/10/2033, 5.2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000243159 | UnitedHealth Group, Inc., , 02/15/2033, 5.35 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000243159 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.80% |
| C000243159 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000243159 | Short-Term and Other Assets | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000243159 | Aaa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000243159 | Baa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 53% |
| C000243159 | Ba | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000243159 | Aa | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000138243 | iShares 10+ Year Investment Grade Corporate Bond ETF,0, | |
| Holdings [Line Items] | |
| Percent of Total Investments | 25.50% |
| C000138243 | iShares 0-3 Month Treasury Bond ETF,0, | |
| Holdings [Line Items] | |
| Percent of Total Investments | 24.10% |
| C000138243 | iShares Broad USD High Yield Corporate Bond ETF,0, | |
| Holdings [Line Items] | |
| Percent of Total Investments | 20.20% |
| C000138243 | iShares JP Morgan USD Emerging Markets Bond ETF,0, | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10.10% |
| C000138243 | iShares Floating Rate Bond ETF,0, | |
| Holdings [Line Items] | |
| Percent of Total Investments | 10.10% |
| C000138243 | Investment Companies | |
| Holdings [Line Items] | |
| Percent of Total Investments | 100% |
| C000141927 | A | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.30% |
| C000141927 | Not Rated | |
| Holdings [Line Items] | |
| Percent of Total Investments | 4.40% |
| C000141927 | Aaa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 60.70% |
| C000141927 | Baa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 12.90% |
| C000141927 | Ba | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000141927 | B | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.40% |
| C000141927 | Caa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.80% |
| C000141927 | Aa | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.30% |
| C000141927 | Ca | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.30% |
| C000141927 | C | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
| C000141927 | U.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Total Investments | 38.20% |
| C000141927 | Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 31.60% |
| C000141927 | U.S. Government Sponsored Agency Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 22.50% |
| C000141927 | Foreign Government Obligations | |
| Holdings [Line Items] | |
| Percent of Total Investments | 3.40% |
| C000141927 | Foreign Agency Obligations | |
| Holdings [Line Items] | |
| Percent of Total Investments | 2.90% |
| C000141927 | Non-Agency Mortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.60% |
| C000141927 | Asset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.40% |
| C000141927 | Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0.40% |
| C000141927 | Common Stocks | |
| Holdings [Line Items] | |
| Percent of Total Investments | 0% |
