CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
OPERATING ACTIVITIES
Net income (loss)		$ 377	$ (11)
Adjustments to reconcile to cash provided by operating activities:
Depreciation, amortization, and other		72	69
Stock-based compensation		44	53
Income taxes		61	(50)
Liability for guest loyalty program		57	74
Contract acquisition costs		(26)	(47)
Restructuring, merger-related charges, and other		7	(6)
Working capital changes		(230)	(27)
Deferred revenue changes and other		36	(28)
Net cash provided by operating activities		398	27
INVESTING ACTIVITIES
Capital and technology expenditures		(49)	(30)
Dispositions		0	7
Loan advances		0	(2)
Loan collections		7	3
Other		19	(7)
Net cash used in investing activities		(23)	(29)
FINANCING ACTIVITIES
Credit Facility, net		(250)	(500)
Issuance of long-term debt		0	1,089
Repayment of long-term debt		(401)	(752)
Issuance of Class A Common Stock		0	2
Stock-based compensation withholding taxes		(78)	(82)
Other		0	(7)
Net cash used in financing activities		(729)	(250)
DECREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH		(354)	(252)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of period	[1]	1,421	894
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of period	[1]	$ 1,067	$ 642

[1] The 2022 amounts include beginning restricted cash of $28 million at December 31, 2021, and ending restricted cash of $25 million at March 31, 2022, which we present in the “Prepaid expenses and other” and “Other noncurrent assets” captions of our Balance Sheets.