Equity Allocation Between Controlling and Non-Controlling Interests (Detail) (HOST HOTELS & RESORTS, INC., USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 17, 2011	Jun. 18, 2010	Jun. 17, 2011	Jun. 18, 2010
Stockholders Equity Note [Line Items]
Beginning Balance			$ 6,332	$ 6,211
Net income (loss)			4	(63)
Issuance of common stock			288	55
Redemption of preferred stock				(101)
Other changes in ownership			15	(42)
Other comprehensive income (note 9)	11	(7)	15	(10)
Ending Balance	6,654	6,050	6,654	6,050
Parent
Stockholders Equity Note [Line Items]
Beginning Balance			6,303	6,189
Net income (loss)			2	(65)
Issuance of common stock			288	55
Redemption of preferred stock				(101)
Other changes in ownership			6	(39)
Other comprehensive income (note 9)			15	(10)
Ending Balance	6,614	6,029	6,614	6,029
Non-redeemable non-controlling interests
Stockholders Equity Note [Line Items]
Beginning Balance			29	22
Net income (loss)			2	2
Other changes in ownership			9	(3)
Ending Balance	40	21	40	21
Redeemable non-controlling interests
Stockholders Equity Note [Line Items]
Beginning Balance			191	139
Net income (loss)				(1)
Other changes in ownership			(17)	31
Ending Balance	$ 174	$ 169	$ 174	$ 169