S000062159 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 86 Months Ended |
|---|---|---|---|
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% | 2.58% |
| Bloomberg MSCI US Aggregate ESG Focus Index (Returns do not reflect deductions for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.34% | (0.36%) | 2.29% |
| iShares ESG Aware U.S. Aggregate Bond ETF | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.13% | (0.48%) | 2.17% |
| Performance Inception Date | Oct. 18, 2018 | ||
| iShares ESG Aware U.S. Aggregate Bond ETF | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.42% | (1.62%) | 1.03% |
| iShares ESG Aware U.S. Aggregate Bond ETF | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.19% | (0.86%) | 1.18% |