Equity Allocation Between Controlling and Non-Controlling Interests (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 07, 2012	Sep. 07, 2012	Sep. 30, 2013
Stockholders Equity Note [Line Items]
Net income	$ (1)	$ (1)	$ 1	$ 2
Net income		(1)	1	3
HOST HOTELS & RESORTS, INC.
Stockholders Equity Note [Line Items]
Beginning Balance				6,859
Net income (loss) attributable to Host L.P.	19	(34)	46	194
Net income				196
Issuance of common stock				483
Dividends declared on common stock				(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
HOST HOTELS & RESORTS, INC. | Parent
Stockholders Equity Note [Line Items]
Beginning Balance				6,825
Net income (loss) attributable to Host L.P.				194
Issuance of common stock				483
Dividends declared on common stock				(247)
Other changes in ownership				(17)
Other comprehensive loss				(12)
Ending Balance	7,226			7,226
HOST HOTELS & RESORTS, INC. | Non-controlling Interests of Consolidated Partnerships
Stockholders Equity Note [Line Items]
Beginning Balance				34
Net income				2
Issuance of common stock
Dividends declared on common stock
Distributions to non-controlling interests				(4)
Other changes in ownership				4
Other comprehensive loss
Ending Balance	36			36
HOST HOTELS & RESORTS, INC. | Redeemable non-controlling interests
Stockholders Equity Note [Line Items]
Beginning Balance				158
Net income				3
Issuance of common stock
Dividends declared on common stock
Distributions to non-controlling interests				(3)
Other changes in ownership				17
Other comprehensive loss
Ending Balance	$ 175			$ 175