Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Sales	$ 685	$ 585	$ 1,980	$ 1,981
Cost of sales	590	471	1,670	1,640
Gross profit	95	114	310	341
Selling, general and administrative expenses	102	100	304	352
Goodwill and intangible asset impairment	0	0	0	242
Operating (loss) income	(7)	14	6	(253)
Other (expense) income:
Interest expense	(6)	(7)	(18)	(22)
Other, net	0	1	1	(1)
(Loss) income before income taxes	(13)	8	(11)	(276)
Income tax (benefit) expense	(2)	5	(1)	(7)
Net (loss) income	(11)	3	(10)	(269)
Series A preferred stock dividends	6	6	18	18
Net loss attributable to common stockholders	$ (17)	$ (3)	$ (28)	$ (287)
Basic loss per common share (in dollars per share)	$ (0.21)	$ (0.04)	$ (0.34)	$ (3.50)
Diluted loss per common share (in dollars per share)	$ (0.21)	$ (0.04)	$ (0.34)	$ (3.50)
Weighted-average common shares, basic (in shares)	82.7	82.1	82.5	81.9
Weighted-average common shares, diluted (in shares)	82.7	82.1	82.5	81.9