S000004322 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 295 Months Ended |
|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| S&P Total Market Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 23.87% | 13.78% | 12.48% | |
| Dow Jones U.S. Financial Services Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 32.45% | 11.30% | 12.03% | |
| iShares U.S. Financial Services ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 31.95% | 10.87% | 11.58% | |
| Performance Inception Date | Jun. 12, 2000 | |||
| iShares U.S. Financial Services ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 31.54% | 10.41% | 11.15% | |
| iShares U.S. Financial Services ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 19.15% | 8.53% | 9.50% |