Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Sales	$ 585	$ 942	$ 1,981	$ 2,896
Cost of sales	471	768	1,640	2,374
Gross profit	114	174	341	522
Selling, general and administrative expenses	100	137	352	409
Goodwill and intangible asset impairment	0	0	242	0
Operating income (loss)	14	37	(253)	113
Other (expense) income:
Interest expense	(7)	(10)	(22)	(31)
Other, net	1	2	(1)	3
Income (loss) before income taxes	8	29	(276)	85
Income tax expense (benefit)	5	8	(7)	22
Net income (loss)	3	21	(269)	63
Series A preferred stock dividends	6	6	18	18
Net (loss) income attributable to common stockholders	$ (3)	$ 15	$ (287)	$ 45
Basic (loss) income per common share (in dollars per share)	$ (0.04)	$ 0.18	$ (3.50)	$ 0.54
Diluted (loss) income per common share (in dollars per share)	$ (0.04)	$ 0.18	$ (3.50)	$ 0.53
Weighted-average common shares, basic (in shares)	82.1	82.7	81.9	83.4
Weighted-average common shares, diluted (in shares)	82.1	83.4	81.9	84.2