Goodwill and Intangible Assets, Net - Summary of Changes in Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Beginning balance		$ 732	$ 734
Acquisitions	[1]	17	17
Disposition			(1)
Other adjustments	[2]	(13)	(18)
Ending balance		736	732
Hotel Segment
Goodwill [Line Items]
Beginning balance		442	442
Acquisitions	[1]	10	1
Disposition			(1)
Other adjustments	[2]	(1)
Ending balance		451	442
Non-Hotel Segment
Goodwill [Line Items]
Beginning balance		290	292
Acquisitions	[1]	7	16
Other adjustments	[2]	(12)	(18)
Ending balance		$ 285	$ 290

[1] The additions to goodwill relate to our business acquisitions. See “Note 3— Acquisitions and Dispositions,” for further information.

[2] Primarily related to impact of changes in foreign currency exchange rates to goodwill.