Capital Allocation Between Controlling and Non-Controlling Interests (Detail) (HOST HOTELS & RESORTS L.P., USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 07, 2012	Sep. 07, 2012	Sep. 30, 2013
Limited Partners Capital Account [Line Items]
Beginning Balance				$ 6,859
Net income (loss) attributable to Host L.P.	19	(35)	47	197
Net income				196
Issuance of common OP units				483
Distributions declared on common OP units				(247)
Distributions to non-controlling interests				(4)
Other changes in ownership				(13)
Other comprehensive loss	12	16	10	(12)
Ending Balance	7,262			7,262
Parent
Limited Partners Capital Account [Line Items]
Beginning Balance				6,825
Net income (loss) attributable to Host L.P.				194
Issuance of common OP units				483
Distributions declared on common OP units				(247)
Distributions to non-controlling interests
Other changes in ownership				(17)
Other comprehensive loss				(12)
Ending Balance	7,226			7,226
Non-controlling Interests of Consolidated Partnerships
Limited Partners Capital Account [Line Items]
Beginning Balance				34
Net income (loss) attributable to Host L.P.				2
Issuance of common OP units
Distributions declared on common OP units
Distributions to non-controlling interests				(4)
Other changes in ownership				4
Other comprehensive loss
Ending Balance	36			36
Limited Partnership Interests Of Third Parties
Limited Partners Capital Account [Line Items]
Beginning Balance				158
Net income (loss) attributable to Host L.P.				3
Issuance of common OP units
Distributions declared on common OP units				(3)
Distributions to non-controlling interests
Other changes in ownership				17
Other comprehensive loss
Ending Balance	$ 175			$ 175