Investor A Institutional [Member] Expense Example - Investor A, Institutional - iShares Short-Term TIPS Bond Index Fund |
Dec. 31, 2025
USD ($)
|
|---|---|
| Investor A Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 37 |
| Expense Example, with Redemption, 3 Years | 122 |
| Expense Example, with Redemption, 5 Years | 216 |
| Expense Example, with Redemption, 10 Years | 490 |
| Institutional Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 7 |
| Expense Example, with Redemption, 3 Years | 23 |
| Expense Example, with Redemption, 5 Years | 40 |
| Expense Example, with Redemption, 10 Years | $ 90 |