Non-controlling Interests - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 17, 2011	Jun. 18, 2010	Jun. 17, 2011	Jun. 18, 2010	Dec. 31, 2010
HOST HOTELS & RESORTS, INC.
Noncontrolling Interest [Line Items]
Number of majority-owned partnerships that have third-party, non-controlling ownership interests that have been consolidated	5		5
Number of majority-owned partnerships that have third-party, non-controlling ownership interests with finite lives	3		3
Non-controlling interests in outside partnerships	$ 40		$ 40		$ 29
Net (income) loss attributable to non-controlling interests	2	1	2	1
Amounts attributable to outside partners of Host LP	1			(1)
HOST HOTELS & RESORTS, INC. | Lower Limit
Noncontrolling Interest [Line Items]
Majority-owned partnerships with manditorily redeemable non-controlling interests, finite life (years)	99		99
Majority-owned partnerships with manditorily redeemable non-controlling interests, termination year	2081		2081
HOST HOTELS & RESORTS, INC. | Upper Limit
Noncontrolling Interest [Line Items]
Majority-owned partnerships with manditorily redeemable non-controlling interests, finite life (years)	100		100
Majority-owned partnerships with manditorily redeemable non-controlling interests, termination year	2095		2095
HOST HOTELS & RESORTS, INC. | Estimate of Fair Value, Fair Value Disclosure
Noncontrolling Interest [Line Items]
Non-controlling interests in outside partnerships	66		66		65
HOST HOTELS & RESORTS L.P.
Noncontrolling Interest [Line Items]
Net (income) loss attributable to non-controlling interests	$ 1	$ 1	$ 2	$ 2
OP units conversion basis					One OP unit may now be exchanged into 1.021494 shares of Host Inc. common stock
Shares issuable upon conversion of one OP unit	1.021494		1.021494		1.021494