BUSINESS SEGMENTS (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment Revenues

Segment Revenues

The following tables present our revenues disaggregated by major revenue stream as of year-end 2018, year-end 2017, and year-end 2016:

	2018
($ in millions)	North American Full-Service			North American Limited-Service			Asia Pacific			Other International			Total
Gross fee revenues	$	1,255		$	903		$	479		$	518		$	3,155
Contract investment amortization	(33		)	(12		)	(2		)	(11		)	(58		)
Net fee revenues	1,222			891			477			507			3,097
Owned, leased, and other revenue	593			128			182			668			1,571
Cost reimbursement revenue	11,257			2,198			459			1,091			15,005
Total segment revenue	$	13,072		$	3,217		$	1,118		$	2,266		$	19,673
Unallocated corporate													1,085
Total revenue													$	20,758

	2017
($ in millions)	North American Full-Service			North American Limited-Service			Asia Pacific			Other International			Total
Gross fee revenues	$	1,202		$	842		$	431		$	476		$	2,951
Contract investment amortization	(25		)	(11		)	(1		)	(13		)	(50		)
Net fee revenues	1,177			831			430			463			2,901
Owned, leased, and other revenue	697			132			191			685			1,705
Cost reimbursement revenue	11,035			2,256			433			1,140			14,864
Total segment revenue	$	12,909		$	3,219		$	1,054		$	2,288		$	19,470
Unallocated corporate													982
Total revenue													$	20,452

	2016
($ in millions)	North American Full-Service			North American Limited-Service			Asia Pacific			Other International			Total
Gross fee revenues	$	856		$	746		$	231		$	312		$	2,145
Contract investment amortization	(21		)	(9		)	(1		)	(9		)	(40		)
Net fee revenues	835			737			230			303			2,105
Owned, leased, and other revenue	390			119			127			438			1,074
Cost reimbursement revenue	8,199			2,038			274			922			11,433
Total segment revenue	$	9,424		$	2,894		$	631		$	1,663		$	14,612
Unallocated corporate													795
Total revenue													$	15,407

Segment Profits

Segment Profits

($ in millions)	2018			2017			2016
North American Full-Service	$	1,153		$	1,238		$	801
North American Limited-Service	786			827			702
Asia Pacific	456			361			160
Other International	570			420			222
Other unallocated corporate	(302		)	386			(447		)
Interest expense, net of interest income	(318		)	(250		)	(199		)
Income taxes	(438		)	(1,523		)	(431		)
Net income	$	1,907		$	1,459		$	808

Depreciation and Amortization

Depreciation, Amortization, and Other

($ in millions)	2018		2017		2016
North American Full-Service	$	82	$	82	$	43
North American Limited-Service	15		14		13
Asia Pacific	26		32		8
Other International	70		71		34
Unallocated corporate	33		30		21
	$	226	$	229	$	119

Capital Expenditures

Capital Expenditures

($ in millions)	2018		2017		2016
North American Full-Service	$	290	$	21	$	35
North American Limited-Service	15		10		7
Asia Pacific	6		12		1
Other International	40		42		38
Unallocated corporate	205		155		118
	$	556	$	240	$	199