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Host LP Earnings (Loss) Per Common Unit (Parenthetical) (Detail) (HOST HOTELS & RESORTS L.P.)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
HOST HOTELS & RESORTS L.P.
   
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive shares which were not included in the computation of diluted EPS 29us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= hst_HostHotelsResortsLimitedPartnershipSubsidiariesMember
40us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ dei_LegalEntityAxis
= hst_HostHotelsResortsLimitedPartnershipSubsidiariesMember