S000004314 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 305 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% | |
| S&P SmallCap 600 Growth Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.37% | 5.53% | 9.82% | |
| iShares S&P Small-Cap 600 Growth ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 5.20% | 5.36% | 9.60% | |
| Performance Inception Date | Jul. 24, 2000 | |||
| iShares S&P Small-Cap 600 Growth ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 4.94% | 5.10% | 9.33% | |
| iShares S&P Small-Cap 600 Growth ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 3.21% | 4.13% | 7.84% |