Annual Total Returns |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| T. Rowe Price U.S. Limited Duration TIPS Index Fund- Investor Class | |||||
| Prospectus [Line Items] | |||||
| Annual Return [Percent] | 6.32% | 4.15% | 3.27% | (5.04%) | 4.98% |