XML 237 R50.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Label Element Value
Risk Return Abstract rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName VANGUARD INDEX FUNDS
Prospectus Date rr_ProspectusDate Apr. 26, 2024
Document Creation Date dei_DocumentCreationDate Apr. 25, 2024