Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Revenues
Total revenues		$ 659	$ 668
Operating expenses
Other property-level		49	53
Management and franchise fees		33	33
Depreciation and amortization		62	70
Corporate general and administrative		17	16
Other		20	17
Total expenses		561	583
Gain on sales of assets, net		31	89
Operating income		129	174
Interest income		1	1
Interest expense		(32)	(31)
Equity in earnings from investments in affiliates		5	4
Gain on foreign currency transactions			1
Other gain, net		1
Income before income taxes		104	149
Income tax expense		(7)	(5)
Net income		97	149
Net (income) loss attributable to noncontrolling interests		(1)	1
Net income attributable to stockholders		96	150
Other comprehensive income, net of tax expense:
Currency translation adjustment, net of tax expense of $0			37
Total other comprehensive income			37
Comprehensive income		97	186
Comprehensive (income) loss attributable to noncontrolling interests		(1)	1
Comprehensive income attributable to stockholders		$ 96	$ 187
Earnings per share:
Earnings per share - Basic	[1]	$ 0.48	$ 0.71
Earnings per share - Diluted	[1]	$ 0.48	$ 0.71
Weighted average shares outstanding - Basic		201	211
Weighted average shares outstanding - Diluted		202	212
Rooms [Member]
Revenues
Total revenues		$ 405	$ 418
Operating expenses
Expenses		107	112
Food and Beverage [Member]
Revenues
Total revenues		183	183
Operating expenses
Expenses		124	126
Ancillary Hotel [Member]
Revenues
Total revenues		53	50
Other [Member]
Revenues
Total revenues		18	17
Other Departmental and Support [Member]
Operating expenses
Expenses		$ 149	$ 156

[1] Per share amounts are calculated based on unrounded numbers.