Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 489	$ 572	$ 984	$ 1,166
Cost of sales	(412)	(460)	(822)	(943)
Gross profit	77	112	162	223
Selling, general and administrative expenses	(50)	(37)	(102)	(68)
Research, development and engineering expenses, net	(159)	(119)	(315)	(225)
Amortization of intangibles	(6)	(6)	(11)	(11)
Other income, net	1	2	1	17
Operating loss	(137)	(48)	(265)	(64)
Loss from equity method investment	(18)	(16)	(35)	(30)
Interest income	4	1	8	1
Interest expense	(2)	(1)	(3)	(1)
Other non-operating items, net	1	1	1	1
Loss before income taxes	(152)	(63)	(294)	(93)
Income tax benefit / (expense)	10	(3)	4	(10)
Net loss	(142)	(66)	(290)	(103)
Less: Net loss attributable to non-controlling interest	(9)	(3)	(20)	(8)
Net loss attributable to controlling interest	$ (133)	$ (63)	$ (270)	$ (95)
Net loss per share - basic (in dollars per share)	$ (1.39)	$ (0.72)	$ (2.94)	$ (1.09)
Net loss per share - diluted (in dollars per share)	$ (1.39)	$ (0.72)	$ (2.94)	$ (1.09)
Weighted average number of shares outstanding, (in millions) (in shares)	96,060	87,130	91,680	87,130
Weighted average number of shares outstanding, assuming dilution (in millions) (in shares)	96,060	87,130	91,680	87,130