S000013694 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 228 Months Ended | ||
|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
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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 | 7.15% | (0.42%) | 2.01% | |||
| ICE Short US Treasury Securities Index (Spliced) (Returns do not reflect deductions for fees, expenses or taxes) | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | [1] | 3.78% | 2.74% | 2.03% | ||
| iShares 0-1 Year Treasury Bond ETF | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 4.20% | 3.02% | 2.10% | |||
| Performance Inception Date | Jan. 05, 2007 | |||||
| iShares 0-1 Year Treasury Bond ETF | After Taxes on Distributions | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 2.47% | 1.75% | 1.24% | |||
| iShares 0-1 Year Treasury Bond ETF | After Taxes on Distributions and Sales | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 2.46% | 1.77% | 1.24% | |||
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