S000004322 [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 |
|
| 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. Financial Services Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 20.46% | 15.23% | 14.17% | |
| iShares U.S. Financial Services ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 20.01% | 14.79% | 13.71% | |
| Performance Inception Date | Jun. 12, 2000 | |||
| iShares U.S. Financial Services ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 19.70% | 14.37% | 13.28% | |
| iShares U.S. Financial Services ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 12.04% | 11.80% | 11.39% |