Summary Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Financial Information

The following table presents summary unaudited quarterly financial data:

	2020								2019
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		First Quarter		Second Quarter		Third Quarter		Fourth Quarter
(Dollars in Millions, Except Per Share Amounts)
Net sales	$	362	$	184	$	371	$	455	$	495	$	489	$	462	$	456
Gross profit	53		3		54		72		85		77		73		76
Operating loss	(122)		(64)		(103)		(77)		(128)		(137)		(122)		(72)
Loss before income taxes	(208)		(88)		(132)		(85)		(142)		(152)		(136)		(91)
Net loss	(231)		(90)		(132)		(91)		(148)		(142)		(139)		(93)
Net loss attributable to controlling interest	$	(233)	$	(90)	$	(132)	$	(91)	$	(137)	$	(133)	$	(133)	$	(96)
Per Share Data:
Basic loss per share	$	(2.09)	$	(0.80)	$	(1.18)	$	(0.82)	$	(1.57)	$	(1.39)	$	(1.20)	$	(0.87)
Diluted loss per share	$	(2.09)	$	(0.80)	$	(1.18)	$	(0.82)	$	(1.57)	$	(1.39)	$	(1.20)	$	(0.87)