Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and equipment were as follows:    

	December 31,
	2017			2016
	(in millions)
Land	$	12		$	12
Buildings and leasehold improvements	428			384
Furniture and equipment	346			357
Construction-in-progress	17			14
	803			767
Accumulated depreciation	(450		)	(426		)
	$	353		$	341