S000004341 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 307 Months Ended |
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Russell 3000 Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 17.15% | 13.15% | 14.29% | |
| iShares Russell 3000 ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 16.92% | 12.96% | 14.09% | |
| Performance Inception Date | May 22, 2000 | |||
| iShares Russell 3000 ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 16.62% | 12.63% | 13.69% | |
| iShares Russell 3000 ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 10.19% | 10.30% | 11.74% |