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Annual Fund Operating Expenses (Vanguard Consumer Staples Index Fund Retail)
Vanguard Consumer Staples Index Fund
Vanguard Consumer Staples Index Fund - Admiral Shares
9/1/2013 - 8/31/2014
Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)  
Management Fees 0.10%rr_ManagementFeesOverAssets
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= vanguard_C000012216Member
12b-1 Distribution Fee none
Other Expenses 0.02%rr_OtherExpensesOverAssets
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= vanguard_S000004447Member
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= vanguard_C000012216Member
Total Annual Fund Operating Expenses 0.12%rr_NetExpensesOverAssets
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= vanguard_S000004447Member
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= vanguard_C000012216Member