CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
REVENUES
Revenues	$ 5,284	$ 5,051	$ 15,601	$ 15,469
OPERATING COSTS AND EXPENSES
Depreciation, amortization, and other	52	52	162	164
General, administrative, and other	220	221	671	685
Merger-related costs and charges	9	12	191	64
Costs and expenses	4,677	4,455	14,075	13,525
OPERATING INCOME	607	596	1,526	1,944
Gains and other income, net	10	18	16	191
Interest expense	(100)	(86)	(299)	(246)
Interest income	8	5	20	16
Equity in earnings	2	61	10	95
INCOME BEFORE INCOME TAXES	527	594	1,273	2,000
Provision for income taxes	(140)	(91)	(279)	(410)
NET INCOME	$ 387	$ 503	$ 994	$ 1,590
EARNINGS PER SHARE
Earnings per share - basic (in USD per share)	$ 1.17	$ 1.45	$ 2.97	$ 4.51
Earnings per share - diluted (in USD per share)	$ 1.16	$ 1.43	$ 2.95	$ 4.45
Base management fees
REVENUES
Gross revenues	$ 291	$ 279	$ 882	$ 852
Franchise fees
REVENUES
Gross revenues	530	502	1,505	1,394
Incentive management fees
REVENUES
Gross revenues	134	151	462	482
Fee revenues
REVENUES
Gross revenues	955	932	2,849	2,728
Contract investment amortization	(16)	(13)	(45)	(44)
Revenues	939	919	2,804	2,684
Owned, leased, and other
REVENUES
Revenues	393	397	1,186	1,226
OPERATING COSTS AND EXPENSES
Operating costs	326	315	982	985
Reimbursements
REVENUES
Revenues	3,952	3,735	11,611	11,559
OPERATING COSTS AND EXPENSES
Operating costs	$ 4,070	$ 3,855	$ 12,069	$ 11,627