Schedule III - Real Estate and Accumulated Depreciation - Change in Total Cost of Properties (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Balance at beginning of period		$ 11,010	$ 11,376	$ 11,566
Additions during period:
Capital expenditures		188	62	66
Transfer to real estate assets	[1]	0	83
Dispositions, including casualty losses and impairment loss on planned dispositions		(190)	(511)	(250)
Foreign exchange effect		0		(6)
Balance at end of period		$ 11,008	$ 11,010	$ 11,376

[1] During 2021, four of our hotels that were previously managed by us were transitioned to a third-party hotel management company.