Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2015

Discontinued Operations And Disposal Groups [Abstract]

Summary Financial Information for Discontinued Operations

Summary financial information for discontinued operations is as follows (in millions):

	Year Ended December 31,
	2015		2014			2013
Income Statement Data
Loss from operations, net of tax	$	—	$	—		$	(1	)
Gain (loss) on dispositions, net of tax	$	—	$	(10	)	$	71