S000068768 [Member] Average Annual Total Returns |
12 Months Ended | 55 Months Ended | ||||
|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
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| ICE BofA US Broad Market Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | [1] | 1.47% | (1.45%) | |||
| ICE 0-3 Month US Treasury Securities Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | [2] | 4.09% | 2.03% | |||
| iShares 0-3 Month Treasury Bond ETF | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 5.28% | 2.59% | ||||
| Performance Inception Date | May 26, 2020 | |||||
| iShares 0-3 Month Treasury Bond ETF | After Taxes on Distributions | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.12% | 1.56% | ||||
| iShares 0-3 Month Treasury Bond ETF | After Taxes on Distributions and Sales | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.10% | 1.54% | ||||
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