Vanguard Inflation-Protected Securities Fund Investment Objectives and Goals - Retail Prospectus [Member] - Vanguard Inflation-Protected Securities Fund |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:13pt;font-weight:bold;">Fund Summary</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | Vanguard Inflation-Protected Securities Fund (the “Fund”) seeks to provide inflation protection and income consistent with investment in inflation-indexed securities. |