Vanguard Total Treasury ETF Expense Example - ETF Prospectus [Member] - Vanguard Total Treasury ETF - ETF Shares |
Sep. 30, 2024
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 3 |
| Expense Example, with Redemption, 3 Years | $ 10 |