S000009422 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 236 Months Ended |
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| S&P Total Market Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 17.05% | 13.07% | 14.22% | |
| Dow Jones U.S. Select Regional Banks Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 13.58% | 7.68% | 8.03% | |
| iShares U.S. Regional Banks ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 13.15% | 7.27% | 7.60% | |
| Performance Inception Date | May 01, 2006 | |||
| iShares U.S. Regional Banks ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 12.30% | 6.49% | 6.90% | |
| iShares U.S. Regional Banks ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 8.29% | 5.57% | 6.01% |