Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 651	$ 501	$ 1,282	$ 1,049
Operating expenses:
Cost of products	527	418	1,044	879
Warehousing, selling and administrative	138	140	273	292
Operating loss	(14)	(57)	(35)	(122)
Other expense	(3)	(2)	(5)	(4)
Loss before income taxes	(17)	(59)	(40)	(126)
Income tax provision (benefit)	0	(15)	0	(19)
Net loss	$ (17)	$ (44)	$ (40)	$ (107)
Loss per share:
Basic loss per common share	$ (0.16)	$ (0.40)	$ (0.37)	$ (0.99)
Diluted loss per common share	$ (0.16)	$ (0.40)	$ (0.37)	$ (0.99)
Weighted-average common shares outstanding, basic	107,689,554	107,442,304	107,635,122	107,357,620
Weighted-average common shares outstanding, diluted	107,689,554	107,442,304	107,635,122	107,357,620