v3.26.1
Vanguard Health Care Fund Expense Example - Retail Prospectus [Member] - Vanguard Health Care Fund
Jan. 31, 2026
USD ($)
Investor Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 34
Expense Example, with Redemption, 3 Years 106
Expense Example, with Redemption, 5 Years 185
Expense Example, with Redemption, 10 Years 418
Admiral Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 28
Expense Example, with Redemption, 3 Years 87
Expense Example, with Redemption, 5 Years 152
Expense Example, with Redemption, 10 Years $ 343