Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,657	$ 1,373	$ 1,902
Cost of sales	(1,384)	(1,191)	(1,591)
Gross profit	273	182	311
Selling, general and administrative expenses	(159)	(165)	(189)
Research, development and engineering expenses, net	(424)	(407)	(562)
Amortization of intangibles	(7)	(6)	(20)
Other (expense) / income, net	(40)	29	0
Operating loss	(357)	(367)	(460)
Gain on divestiture and assets impairment charge, net	0	(91)	0
Gain/(loss) from equity method investment	6	(39)	(70)
Interest income	3	9	20
Interest expense	(21)	(20)	(12)
Other non-operating items, net	0	(4)	1
Loss before income taxes	(369)	(512)	(521)
Income tax expense	(16)	(32)	(1)
Net loss	(385)	(544)	(522)
Less: Net income/(loss) attributable to non-controlling interest	0	1	(22)
Net loss attributable to controlling interest	$ (385)	$ (545)	$ (500)
Basic loss per share (in dollars per share)	$ (3.44)	$ (4.89)	$ (4.92)
Diluted loss per share (in dollars per share)	$ (3.44)	$ (4.89)	$ (4.92)
Weighted average number of shares outstanding, (in millions)	111,880	111,560	101,620
Weighted average number of shares outstanding, assuming dilution (in millions)	111,880	111,560	101,620