Consolidated Statement of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net sales	$ 1,078	$ 2,306	$ 3,004	$ 4,469
Costs and expenses
Cost of sales	1,088	1,980	2,808	3,843
Selling, general and administrative expenses	82	140	188	276
Amortization of intangibles	3	4	6	6
Restructuring charges, net	16	9	19	18
Impairment of goodwill			(51)
Pension settlement charge		(258)		(258)
Other income (expense), net	(1)	(10)	3	(23)
Earnings (loss) before interest and income taxes	(112)	(95)	(65)	45
Write-off deferred financing costs	(5)		(5)
Interest income	2	3	4	5
Interest expense	32	34	61	61
Loss before income taxes	(147)	(126)	(127)	(11)
Income tax expense (benefit)	34	(52)	18	(32)
Equity in earnings of affiliates	8	8	10	14
Net income (loss)	(173)	(66)	(135)	35
Less: Noncontrolling interests net income		2	2	6
Less: Redeemable noncontrolling interests net income (loss)	1		(21)	(1)
Net income (loss) attributable to the parent company	$ (174)	$ (68)	$ (116)	$ 30
Net income (loss) per share available to common stockholders
Basic (in dollars per share)	$ (1.20)	$ (0.47)	$ (0.80)	$ 0.21
Diluted (in dollars per share)	$ (1.20)	$ (0.47)	$ (0.80)	$ 0.21
Weighted-average common shares outstanding
Basic (in shares)	144.5	144.0	144.4	143.9
Diluted (in shares)	144.5	144.0	144.4	144.8