CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
OPERATING ACTIVITIES
Net income		$ 1,055	$ 411
Adjustments to reconcile to cash provided by operating activities:
Depreciation, amortization, and other		140	137
Stock-based compensation		96	96
Income taxes		174	(277)
Liability for guest loyalty program		44	90
Contract acquisition costs		(51)	(108)
Restructuring, merger-related charges, and other		6	(4)
Working capital changes		(379)	(120)
Deferred revenue changes and other		(37)	(99)
Net cash provided by operating activities		1,048	126
INVESTING ACTIVITIES
Capital and technology expenditures		(119)	(70)
Dispositions		0	7
Loan advances		(3)	(2)
Loan collections		9	5
Other		22	(12)
Net cash used in investing activities		(91)	(72)
FINANCING ACTIVITIES
Credit Facility, net		(750)	(500)
Issuance of long-term debt		0	1,089
Repayment of long-term debt		(576)	(770)
Issuance of Class A Common Stock		0	2
Dividends paid		(98)	0
Purchase of treasury stock		(300)	0
Stock-based compensation withholding taxes		(87)	(83)
Other		0	(7)
Net cash used in financing activities		(1,811)	(269)
DECREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH		(854)	(215)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of period	[1]	1,421	894
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of period	[1]	$ 567	$ 679

[1] The 2022 amounts include beginning restricted cash of $28 million at December 31, 2021, and ending restricted cash of $21 million at June 30, 2022, which we present in the “Prepaid expenses and other” and “Other noncurrent assets” captions of our Balance Sheets.