CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
REVENUES
Revenues	$ 1,464	$ 5,305	$ 6,145	$ 10,317
OPERATING COSTS AND EXPENSES
Depreciation, amortization, and other	72	56	222	110
General, administrative, and other	178	229	448	451
Restructuring and merger-related charges	6	173	4	182
Costs and expenses	1,618	4,896	6,185	9,398
OPERATING (LOSS) INCOME	(154)	409	(40)	919
Gains and other income, net	5	1	1	6
Interest expense	(127)	(102)	(220)	(199)
Interest income	8	6	14	12
Equity in (losses) earnings	(30)	0	(34)	8
(LOSS) INCOME BEFORE INCOME TAXES	(298)	314	(279)	746
Benefit (provision) for income taxes	64	(82)	76	(139)
NET (LOSS) INCOME	$ (234)	$ 232	$ (203)	$ 607
(LOSS) EARNINGS PER SHARE
(Loss) earnings per share - basic (in USD per share)	$ (0.72)	$ 0.70	$ (0.63)	$ 1.80
(Loss) earnings per share - diluted (in USD per share)	$ (0.72)	$ 0.69	$ (0.63)	$ 1.79
Base management fees
REVENUES
Gross revenues	$ 40	$ 309	$ 254	$ 591
Franchise fees
REVENUES
Gross revenues	182	525	597	975
Incentive management fees
REVENUES
Gross revenues	12	165	12	328
Fee revenues
REVENUES
Gross revenues	234	999	863	1,894
Contract investment amortization	(21)	(15)	(46)	(29)
Revenues	213	984	817	1,865
Owned, leased, and other
REVENUES
Revenues	49	418	329	793
OPERATING COSTS AND EXPENSES
Operating costs	121	331	393	656
Reimbursements
REVENUES
Revenues	1,202	3,903	4,999	7,659
OPERATING COSTS AND EXPENSES
Operating costs	$ 1,241	$ 4,107	$ 5,118	$ 7,999