CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
NET LOSS	$ (61)	$ (356)	$ (214)	$ (359)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Foreign currency translation and other comprehensive income of unconsolidated affiliates	6		4	(19)
Change in fair value of derivative instruments	0	(2)	(1)	1
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	6	(2)	3	(18)
COMPREHENSIVE LOSS	(55)	(358)	(211)	(377)
Less: Comprehensive loss attributable to non-controlling interests	1	4	2	4
COMPREHENSIVE LOSS ATTRIBUTABLE TO HOST HOTELS & RESORTS, INC.	(54)	(354)	(209)	(373)
HOST HOTELS & RESORTS L.P.
NET LOSS	(61)	(356)	(214)	(359)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Foreign currency translation and other comprehensive income of unconsolidated affiliates	6		4	(19)
Change in fair value of derivative instruments	0	(2)	(1)	1
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	6	(2)	3	(18)
COMPREHENSIVE LOSS	(55)	(358)	(211)	(377)
Less: Comprehensive loss attributable to non-controlling interests		1		1
COMPREHENSIVE LOSS ATTRIBUTABLE TO HOST HOTELS & RESORTS, INC.	$ (55)	$ (357)	$ (211)	$ (376)