Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Revenue	$ 3,010	$ 4,105	$ 4,296
Operating expenses:
Cost of products	2,508	3,286	3,499
Warehousing, selling and administrative	619	638	573
Impairment of goodwill	393
Operating profit (loss)	(510)	181	224
Other expense	(8)	(3)	(2)
Income (loss) before income taxes	(518)	178	222
Income tax provision (benefit)	(16)	62	75
Net income (loss)	$ (502)	$ 116	$ 147
Earnings (loss) per share:
Basic earnings (loss) per common share	$ (4.68)	$ 1.07	$ 1.37
Diluted earnings (loss) per common share	$ (4.68)	$ 1.06	$ 1.37
Weighted-average common shares outstanding, basic	107,173,972	107,058,843	107,053,031
Weighted-average common shares outstanding, diluted	107,173,972	107,556,144	107,468,868