Capital Allocation between Controlling and Non-Controlling Interests (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Limited Partners Capital Account [Line Items]
Beginning Balance	$ 7,033
NET INCOME ATTRIBUTABLE TO REPORTING ENTITY	158	$ 182
Net income attributable to non-controlling interests	1
Net income	2	2
Other comprehensive income	5	13
Ending Balance	7,066
HOST HOTELS & RESORTS L.P.
Limited Partners Capital Account [Line Items]
Beginning Balance	7,033
NET INCOME ATTRIBUTABLE TO REPORTING ENTITY	160	184
Net income	159
Issuance of common stock for comprehensive stock plans	8
Distributions declared on common OP units	(147)
Changes in ownership and other	8
Other comprehensive income	5	$ 13
Ending Balance	7,066
HOST HOTELS & RESORTS L.P. | Parent
Limited Partners Capital Account [Line Items]
Beginning Balance	6,994
NET INCOME ATTRIBUTABLE TO REPORTING ENTITY	158
Issuance of common stock for comprehensive stock plans	8
Distributions declared on common OP units	(147)
Changes in ownership and other	9
Other comprehensive income	4
Ending Balance	7,026
HOST HOTELS & RESORTS L.P. | Non-controlling Interests
Limited Partners Capital Account [Line Items]
Beginning Balance	39
Net income attributable to non-controlling interests	1
Changes in ownership and other	(1)
Other comprehensive income	1
Ending Balance	40
HOST HOTELS & RESORTS L.P. | Limited Partnership Interests Of Third Parties
Limited Partners Capital Account [Line Items]
Beginning Balance	165
Net income	2
Distributions declared on common OP units	(2)
Changes in ownership and other	(4)
Ending Balance	$ 161