CONSOLIDATED STATEMENTS OF CAPITAL - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income (loss)	$ (11)	$ (741)	$ 932
Change in fair value of derivative instruments	0	(1)	(1)
Amounts reclassified from other comprehensive income (loss)	$ 0	$ 1	$ 4
Redemptions of limited partner interests for common stock (shares)	0.1	0.2	0.2
Redemptions of limited partner interests for common stock	$ 2	$ 3	$ 2
HOST HOTELS & RESORTS L.P.
Beginning Balance	6,326	7,325	7,566
Net income (loss)	(10)	(733)	922
Other changes in ownership	(22)	22	(10)
Foreign currency translation and other comprehensive income (loss) of unconsolidated affiliates	(2)	(18)
Change in fair value of derivative instruments		(1)	(1)
Amounts reclassified from other comprehensive income (loss)		(1)	(4)
Common OP unit issuances	138
Units issued to Host Inc. for the comprehensive stock and employee stock purchase plans	$ 14	15	10
Distributions on common OP units		(141)	(617)
Redemptions of limited partner interests for common stock (shares)	0.1
Redemptions of limited partner interests for common stock	$ 2	3	2
Distributions to non-controlling interests			(69)
Repurchase of common stock		(147)	(482)
Ending Balance	$ 6,446	$ 6,326	$ 7,325
HOST HOTELS & RESORTS L.P. | Limited Partner
Beginning Balance, units	690.5	698.3	724.8
Beginning Balance	$ 6,394	$ 7,374	$ 7,552
Net income (loss)	(11)	(732)	920
Other changes in ownership	$ (21)	$ 22	$ (11)
Common OP unit issuances (units)	7.6
Common OP unit issuances	$ 138
Units issued to Host Inc. for the comprehensive stock and employee stock purchase plans (units)	0.8	0.7	0.5
Units issued to Host Inc. for the comprehensive stock and employee stock purchase plans	$ 14	$ 15	$ 10
Distributions on common OP units		$ 141	$ 617
Redemptions of limited partner interests for common stock (shares)	0.1	0.2	0.2
Redemptions of limited partner interests for common stock	$ 2	$ 3	$ 2
Repurchase of common stock (shares)		8.7	27.2
Repurchase of common stock		$ 147	$ 482
Ending Balance, units	699.0	690.5	698.3
Ending Balance	$ 6,516	$ 6,394	$ 7,374
HOST HOTELS & RESORTS L.P. | General Partner
Beginning Balance	1	1	1
Ending Balance	1	1	1
HOST HOTELS & RESORTS L.P. | Accumulated Other Comprehensive Income (Loss)
Beginning Balance	(74)	(56)	(59)
Foreign currency translation and other comprehensive income (loss) of unconsolidated affiliates	(2)	(18)
Change in fair value of derivative instruments		(1)	(1)
Amounts reclassified from other comprehensive income (loss)		1	(4)
Ending Balance	(76)	(74)	(56)
HOST HOTELS & RESORTS L.P. | Non-controlling Interests of Consolidated Partnerships
Beginning Balance	5	6	72
Net income (loss)	1	(1)	2
Other changes in ownership	(1)		1
Distributions to non-controlling interests			69
Ending Balance	5	5	6
HOST HOTELS & RESORTS L.P. | Limited Partnership Interests Of Third Parties
Beginning Balance	108	142	128
Net income (loss)	(1)	(8)	10
Other changes in ownership	21	(21)	13
Distributions on common OP units		2	7
Redemptions of limited partner interests for common stock	(2)	(3)	(2)
Ending Balance	$ 126	$ 108	$ 142