Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities:
Net loss	$ (191)	$ (689)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	74	75
Gain on sales of assets, net		(62)
Impairment loss and casualty gain, net		694
Equity in losses from investments in affiliates	4	1
Other loss, net		2
Share-based compensation expense	6	2
Amortization of deferred financing costs	2	1
Distributions from unconsolidated affiliates		4
Changes in operating assets and liabilities	34	(41)
Net cash used in operating activities	(71)	(13)
Investing Activities:
Capital expenditures for property and equipment	(5)	(26)
Proceeds from asset dispositions, net		205
Contributions to unconsolidated affiliates	(2)
Insurance proceeds for property damage claims	4	1
Net cash (used in) provided by investing activities	(3)	180
Financing Activities:
Borrowings from credit facilities		1,000
Repayments of mortgage debt	(1)	(2)
Dividends paid		(136)
Distributions to noncontrolling interests		(1)
Tax withholdings on share-based compensation	(6)	(6)
Repurchase of common stock		(66)
Net cash (used in) provided by financing activities	(7)	789
Net (decrease) increase in cash and cash equivalents and restricted cash	(81)	956
Cash and cash equivalents and restricted cash, beginning of period	981	386
Cash and cash equivalents and restricted cash, end of period	$ 900	1,342
Non-cash financing activities:
Dividends declared but unpaid		$ 106