Host L.P. Earnings (Loss) Per Common Unit (Parenthetical) (Detail) (HOST HOTELS & RESORTS L.P.)	3 Months Ended		9 Months Ended
	Sep. 09, 2011 PartnershipUnit	Sep. 10, 2010 PartnershipUnit	Sep. 09, 2011 PartnershipUnit	Sep. 10, 2010 PartnershipUnit
HOST HOTELS & RESORTS L.P.
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Anti-dilutive units which were not included in the computation of diluted earnings per unit	41,000,000	51,000,000	47,000,000	51,000,000