Business Segments (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segment Revenues

Segment Revenues

	Three Months Ended				Six Months Ended
($ in millions)	June 30, 2016		June 30, 2015		June 30, 2016		June 30, 2015
North American Full-Service Segment	$	2,360	$	2,252	$	4,681	$	4,427
North American Limited-Service Segment	906		821		1,739		1,559
International	571		549		1,127		1,091
Total segment revenues	3,837		3,622		7,547		7,077
Other unallocated corporate	65		67		127		125
Total consolidated revenues	$	3,902	$	3,689	$	7,674	$	7,202

Segment Profits

Segment Profits

	Three Months Ended						Six Months Ended
($ in millions)	June 30, 2016			June 30, 2015			June 30, 2016			June 30, 2015
North American Full-Service Segment	$	173		$	152		$	358		$	298
North American Limited-Service Segment	191			179			346			330
International	75			57			150			134
Total segment profits	439			388			854			762
Other unallocated corporate	(45		)	3			(93		)	(36		)
Interest expense, net of interest income	(50		)	(36		)	(91		)	(64		)
Income taxes	(97		)	(115		)	(204		)	(215		)
Net income	$	247		$	240		$	466		$	447