Segments - Reconciliation of Segment EBITDA to Consolidated Net Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting [Abstract]
Segment EBITDA	$ 212	$ 151
Corporate expense and other items, net	(7)	(3)
Depreciation	(49)	(41)
Amortization of intangibles	(3)	(2)
Restructuring	(2)	(1)
Stock compensation expense	(4)	(2)
Strategic transaction expenses	(11)	(2)
Acquisition related inventory adjustments	(6)
Other items	(1)	(4)
Distressed supplier costs		(1)
Amounts attributable to previously divested/closed operations		1
Interest expense	(27)	(27)
Interest income	3	3
Income before income taxes	105	72
Income tax expense	30	24
Equity in earnings of affiliates	5
Net income	$ 80	$ 48