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Annual Fund Operating Expenses (Vanguard Consumer Discretionary Index Fund ETF)
Vanguard Consumer Discretionary Index Fund
Vanguard Consumer Discretionary Index Fund - ETF 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 0.09%rr_ManagementFeesOverAssets
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= vanguard_S000004446Member
/ rr_ProspectusShareClassAxis
= vanguard_C000012215Member
12b-1 Distribution Fee none
Other Expenses 0.03%rr_OtherExpensesOverAssets
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= vanguard_S000004446Member
/ rr_ProspectusShareClassAxis
= vanguard_C000012215Member
Total Annual Fund Operating Expenses 0.12%rr_NetExpensesOverAssets
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= vanguard_S000004446Member
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= vanguard_C000012215Member