S000026652 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 193 Months Ended |
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg U.S. Universal Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 7.58% | 0.06% | 2.44% | |
| Bloomberg U.S. Universal 10+ Year Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 7.39% | (4.20%) | 2.48% | |
| iShares Core 10+ Year USD Bond ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 7.16% | (4.27%) | 2.40% | |
| Performance Inception Date | Dec. 08, 2009 | |||
| iShares Core 10+ Year USD Bond ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.07% | (5.90%) | 0.73% | |
| iShares Core 10+ Year USD Bond ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 4.21% | (3.83%) | 1.15% |