Business Segments (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Revenues

Segment Revenues

	Three Months Ended				Nine Months Ended
($ in millions)	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
North American Full-Service Segment	$	2,222	$	2,128	$	6,903	$	6,555
North American Limited-Service Segment	936		846		2,675		2,405
International	545		532		1,672		1,623
Total segment revenues	3,703		3,506		11,250		10,583
Other unallocated corporate	239		72		366		197
Total consolidated revenues	$	3,942	$	3,578	$	11,616	$	10,780

Segment Profits

Segment Profits

	Three Months Ended						Nine Months Ended
($ in millions)	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
North American Full-Service Segment	$	148		$	126		$	506		$	424
North American Limited-Service Segment	193			180			539			510
International	67			69			217			203
Total segment profits	408			375			1,262			1,137
Other unallocated corporate	(231		)	(28		)	(324		)	(64		)
Interest expense, net of interest income	(46		)	(38		)	(137		)	(102		)
Income taxes	(61		)	(99		)	(265		)	(314		)
Net income	$	70		$	210		$	536		$	657