Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net loss	$ (245)	$ (2,537)	$ (6,093)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	306	352	533
Deferred income taxes	11	(65)	(426)
Stock-based compensation	78	105	130
Loss on extinguishment of debt	7	8	26
Equity loss in unconsolidated affiliates	5	260	13
Goodwill and indefinite-lived intangible asset impairment		1,378	3,612
Long-lived asset impairment		513	2,209
Provision for inventory losses	73	367	659
Other, net	16	16	16
Change in operating assets and liabilities, net of acquisitions:
Receivables	(52)	574	275
Inventories	17	429	104
Contract assets	150	30	(70)
Prepaid and other current assets	28	22	(45)
Accounts payable	118	(226)	(19)
Accrued liabilities	(97)	(110)	(194)
Contract liabilities	27	(74)	(34)
Income taxes payable	(28)	9	(25)
Other assets/liabilities, net	(123)	(125)	43
Net cash provided by operating activities	291	926	714
Cash flows from investing activities:
Purchases of property, plant and equipment	(201)	(226)	(233)
Business acquisitions, net of cash acquired	(52)	(14)	(180)
Other, net	57	96	98
Net cash used in investing activities	(196)	(144)	(315)
Cash flows from financing activities:
Borrowings against lines of credit and other debt	60	36	511
Payments against lines of credit and other debt	(183)	(217)	(1,000)
Financing leases	(26)	(31)	(32)
Cash dividends paid	(20)	(19)	(77)
Debt issuance and extinguishment costs	(7)	(8)	(36)
Other	(13)	(20)	(13)
Net cash used in financing activities	(189)	(259)	(647)
Effect of exchange rates on cash	(7)	(2)	(8)
Increase (decrease) in cash and cash equivalents	(101)	521	(256)
Cash and cash equivalents, beginning of period	1,692	1,171	1,427
Cash and cash equivalents, end of period	1,591	1,692	1,171
Cash payments during the period for:
Interest	76	83	85
Income taxes	$ (78)	$ (9)	$ 144

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