Vanguard Short-Term Bond Index Fund Investment Objectives and Goals - ETF Prospectus [Member] - Vanguard Short-Term Bond Index Fund |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:13pt;font-weight:bold;">Vanguard Short-Term Bond ETF</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | Vanguard Short-Term Bond ETF, an exchanged-traded share class of Vanguard Short-Term Bond Index Fund (the “Fund”), seeks to track the performance of a market-weighted bond index with a short-term dollar-weighted average maturity. |