S000026652 [Member] Average Annual Total Returns |
12 Months Ended | 54 Months Ended | 60 Months Ended | 74 Months Ended | 98 Months Ended | 120 Months Ended | 181 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
[2] | Dec. 31, 2024 |
Dec. 31, 2024 |
[3] | Dec. 31, 2024 |
[1] | Dec. 31, 2024 |
Dec. 31, 2024 |
||||||||||||
| 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%) | 0.06% | [1] | 1.79% | 1.35% | 1.73% | [4] | ||||||||||||
| Bloomberg U.S. Universal 10+ Year Index (Returns do not reflect deductions for fees, expenses or taxes) | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | (2.93%) | (2.71%) | 1.45% | ||||||||||||||||||
| iShares Core 10+ Year USD Bond ETF | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | (2.78%) | (2.75%) | 1.39% | ||||||||||||||||||
| Performance Inception Date | Dec. 08, 2009 | ||||||||||||||||||||
| iShares Core 10+ Year USD Bond ETF | After Taxes on Distributions | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | (4.63%) | (4.28%) | (0.24%) | ||||||||||||||||||
| iShares Core 10+ Year USD Bond ETF | After Taxes on Distributions and Sales | |||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||
| Average Annual Return, Percent | (1.63%) | (2.61%) | 0.41% | ||||||||||||||||||
| |||||||||||||||||||||