CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
REVENUES
Base management fees	[1]	$ 1,102	$ 806	$ 698
Franchise fees		1,618	1,169	984
Incentive management fees	[1]	607	425	319
Owned, leased, and other revenue	[1]	1,802	1,126	855
Cost reimbursements	[1]	17,765	13,546	11,630
Total revenue		22,894	17,072	14,486
OPERATING COSTS AND EXPENSES
Owned, leased, and other-direct		1,427	900	733
Reimbursed costs	[1]	17,765	13,546	11,630
Depreciation, amortization, and other	[1]	290	168	139
General, administrative, and other	[1]	894	704	634
Merger-related costs and charges		159	386	0
Costs and Expenses, Total		20,535	15,704	13,136
OPERATING INCOME		2,359	1,368	1,350
Gains and other income, net	[1]	688	5	27
Interest expense		(288)	(234)	(167)
Interest income	[1]	38	35	29
Equity in earnings	[1]	39	10	16
INCOME BEFORE INCOME TAXES		2,836	1,184	1,255
Provision for income taxes		(1,464)	(404)	(396)
NET INCOME		$ 1,372	$ 780	$ 859
EARNINGS PER SHARE
Earnings per share - basic (in USD per share)		$ 3.66	$ 2.68	$ 3.22
Earnings per share - diluted (in USD per share)		$ 3.61	$ 2.64	$ 3.15

[1] See Footnote 19 “Related Party Transactions” for disclosure of related party amounts.