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Goodwill - Additional Information (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2008
Dec. 31, 2007
Goodwill [Line Items]          
Goodwill acquired during period         $ 10,500,000,000us-gaap_GoodwillAcquiredDuringPeriod
Goodwill impairment loss 0us-gaap_GoodwillImpairmentLoss 0us-gaap_GoodwillImpairmentLoss 0us-gaap_GoodwillImpairmentLoss 4,300,000,000us-gaap_GoodwillImpairmentLoss  
Timeshare [member]          
Goodwill [Line Items]          
Goodwill impairment loss       $ 795,000,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= hlt_TimeshareMember