Vanguard Total Treasury ETF Investment Objectives and Goals - ETF Prospectus [Member] - Vanguard Total Treasury ETF |
Sep. 30, 2024 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:13pt;font-weight:bold;">ETF Summary</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | The Fund seeks to track the investment results of an index composed of the broad U.S. Treasury bond market. |