S000068817 [Member] Average Annual Total Returns |
12 Months Ended | 54 Months Ended | 56 Months Ended | 60 Months Ended | 74 Months Ended | 98 Months Ended | 120 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Feb. 28, 2025 |
Dec. 31, 2024 |
[1] | Dec. 31, 2024 |
[3] | Dec. 31, 2024 |
[1] | Dec. 31, 2024 |
[4] | |||||||||||
| Bloomberg U.S. Universal Index (Returns do not reflect deductions for fees, expenses or taxes) | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | 2.04% | [1] | (1.01%) | [2] | 0.06% | 1.79% | 1.35% | 1.73% | |||||||||||||
| Bloomberg MSCI US Universal Choice ESG Screened Index (Returns do not reflect deductions for fees, expenses or taxes) | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | 1.99% | (1.12%) | |||||||||||||||||||
| iShares ESG Advanced Total USD Bond Market ETF | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | 1.94% | (1.25%) | |||||||||||||||||||
| Performance Inception Date | Jun. 23, 2020 | ||||||||||||||||||||
| iShares ESG Advanced Total USD Bond Market ETF | After Taxes on Distributions | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | 0.44% | (2.19%) | |||||||||||||||||||
| iShares ESG Advanced Total USD Bond Market ETF | After Taxes on Distributions and Sales | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | 1.14% | (1.34%) | |||||||||||||||||||
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