Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Assets, Current [Abstract]
Cash and cash equivalents	$ 758	$ 859
Receivables, net	292	253
Inventories, net	134	144
Related party receivable	9	11
Prepaid expenses and other contract assets	36	47
Other current assets	15	18
Assets held for sale	0	317
Total current assets	1,244	1,649
Property, plant and equipment, net	431	473
Operating lease right-of-use assets	89	100
Equity method investment	153	96
Goodwill	317	290
Intangible assets, net	21	17
Deferred tax assets	6	7
Other non-current assets	27	111
Total assets	2,288	2,743
Liabilities, Current [Abstract]
Accounts payable	257	233
Related party payables	2	3
Accrued expenses	232	192
Income tax payable	25	7
Related party short-term debt	16	1
Other current liabilities	55	37
Liabilities held for sale	0	118
Total current liabilities	587	591
4% Convertible Senior Notes due 2024	170	160
Related party long-term debt	115	0
Pension liability	20	17
Deferred tax liabilities	12	13
Operating lease non-current liabilities	71	82
Financial lease non-current liabilities	46	33
Other non-current liabilities	28	29
Total non-current liabilities	462	334
Equity
Common stock	111	111
Additional paid-in capital	2,349	2,343
Accumulated deficit	(1,226)	(681)
Accumulated other comprehensive income/(loss)	5	(44)
Total Equity	1,239	1,729
Non-controlling interest	0	89
Total Equity and non-controlling interests	1,239	1,818
Total liabilities, Equity and non-controlling interests	$ 2,288	$ 2,743