Business Segment Information - Reconciliation of Revenues from Consolidated Hotels to Condensed Combined Consolidated Amounts and Hotel Adjusted EBITDA to Net Income (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues		$ 684	$ 661	[1]
Hotel Adjusted EBITDA		179	182	[1]
Impairment loss	[1]		(15)
Depreciation and amortization expense		(70)	(73)	[1]
Corporate and other expense		(18)	(16)	[1]
Interest expense		(30)	(46)	[1]
Equity in earnings from investments in affiliates		4	3	[1]
Gain on foreign currency transactions		1
Income tax benefit (expense)		2,281	(14)	[1]
Other adjustment items	[1]		(1)
Net income		2,350	23	[1]
Total consolidated hotel revenue [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues		681	658	[1]
Other [Member]
Reconciliation of Revenue and Adjusted EBITDA from Segments to Consolidated Amounts [Line Items]
Total revenues		$ 3	$ 3	[1]

[1] Prior to the spin-off, we had one operating and reportable segment, our ownership segment. Prior period presentation has been restated to reflect our current reportable segment.