CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
OPERATING ACTIVITIES
Net income	$ 365	$ 219
Adjustments to reconcile to cash provided by operating activities:
Depreciation, amortization, and other	65	31
Share-based compensation	48	28
Income taxes	82	58
Liability for guest loyalty programs	60	76
Merger-related charges	(36)	0
Working capital changes	(108)	(45)
Other	50	27
Net cash provided by operating activities	526	394
INVESTING ACTIVITIES
Capital expenditures	(48)	(42)
Dispositions	311	4
Loan advances	(28)	(16)
Loan collections	7	2
Contract acquisition costs	(54)	(21)
Other	(4)	9
Net cash provided by (used in) investing activities	184	(64)
FINANCING ACTIVITIES
Commercial paper/Credit facility, net	(33)	51
Issuance of long-term debt	1	0
Repayment of long-term debt	(4)	(2)
Issuance of Class A Common Stock	2	6
Dividends paid	(115)	(64)
Purchase of treasury stock	(582)	(248)
Other	(99)	(70)
Net cash used in financing activities	(830)	(327)
(DECREASE) INCREASE IN CASH AND EQUIVALENTS	(120)	3
CASH AND EQUIVALENTS, beginning of period	858	96
CASH AND EQUIVALENTS, end of period	$ 738	$ 99