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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Oct. 06, 2017
Registrant Name dei_EntityRegistrantName VANGUARD WORLD FUND
Central Index Key dei_EntityCentralIndexKey 0000052848
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Oct. 06, 2017
Document Effective Date dei_DocumentEffectiveDate Oct. 10, 2017
Prospectus Date rr_ProspectusDate Oct. 10, 2017