Vanguard Utilities Index Fund Investment Objectives and Goals - ETF Prospectus [Member] - Vanguard Utilities Index Fund |
Aug. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:13pt;font-weight:bold;">Vanguard Utilities 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 Utilities ETF, an exchange-traded share class of Vanguard Utilities Index Fund (the “Fund”), seeks to track the performance of a benchmark index that measures the investment return of utilities stocks. |