CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 2,444	$ 2,682	$ 2,461
Costs and expenses:
Cost of products sold (exclusive of depreciation and amortization)	2,138	2,321	2,250
Depreciation and amortization	183	111	115
Selling, general and administrative expenses	104	102	107
Restructuring charges	52	1	9
Other operating (income) expense	4	(5)	1
Operating income (loss)	(37)	152	(21)
Interest expense	2	33	38
Other (income) expense	(18)	(52)	(21)
Income (loss) before income taxes	(21)	171	(38)
Income tax expense (benefit)	(117)	0	(8)
Net income (loss)	$ 96	$ 171	$ (30)
Income (loss) per common share:
Basic (usd per share)	$ 2.78	$ 4.97	$ (0.87)
Diluted (usd per share)	$ 2.74	$ 4.88	$ (0.87)
Weighted average common shares outstanding (in thousands):
Basic (in shares)	34,625	34,514	34,432
Diluted (in shares)	35,134	35,096	34,432