Condensed Consolidated Statements of Cash Flow (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating activities
Net loss	$ (298)	$ (453)
Depreciation and amortization	86	73
Gain on divestitures	0	(77)
Assets impairment charge	0	168
Undistributed (gain) loss from equity method investments	(12)	39
Stock-based compensation	7	6
Deferred income taxes	1	(3)
Other, net	7	3
Change in operating assets and liabilities:
Receivables, gross	15	36
Accrued expenses	(19)	45
Related party receivables and payables, net	3	4
Accounts payable	8	(8)
Prepaid expenses and other contract assets	(8)	14
Inventories, gross	(73)	15
Income taxes	(17)	20
Other current assets and liabilities, net	1	3
Net cash used in operating activities	(299)	(115)
Investing activities
Proceeds from divestitures	0	198
Capital expenditures	(46)	(70)
Equity method investment	11	9
Proceeds from sale of property, plant and equipment	0	10
Acquisition of intangible assets	0	(10)
Acquisition of business net of cash acquired	0	(33)
Net cash (used in)/ provided by investing activities	(35)	104
Financing activities
Dividend paid to non-controlling interest	0	(5)
Payments for long-term debt	(1)	(1)
Payments for short-term debt	(2)	(2)
Proceeds from exercise of stock options	1	0
Net cash used in financing activities	(2)	(8)
Effect of exchange rate changes on cash and cash equivalents	(2)	6
Decrease in cash and cash equivalents and restricted cash	(338)	(13)
Cash and cash equivalents and restricted cash at beginning of period	758	859
Cash and cash equivalents at end of period	$ 420	$ 846