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Consolidated Statements of Loss - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue
Revenue	$ 5,524	$ 6,090	$ 8,479
Cost of revenue
Cost of revenue	4,750	5,656	7,634
Gross profit	774	434	845
Selling, general and administrative	908	968	1,303
Goodwill and indefinite-lived intangible asset impairment		1,378	3,612
Long-lived asset impairment		513	2,209
Operating loss	(134)	(2,425)	(6,279)
Interest and financial costs	(77)	(84)	(100)
Interest income	9	7	20
Equity loss in unconsolidated affiliates	(5)	(260)	(13)
Other income (expense), net	(23)	(17)	(90)
Loss before income taxes	(230)	(2,779)	(6,462)
Provision (benefit) for income taxes	15	(242)	(369)
Net loss	(245)	(2,537)	(6,093)
Net income attributable to noncontrolling interests	5	5	2
Net loss attributable to Company	$ (250)	$ (2,542)	$ (6,095)
Net loss attributable to Company per share:
Basic	$ (0.65)	$ (6.62)	$ (15.96)
Diluted	(0.65)	(6.62)	(15.96)
Cash dividends per share	$ 0.05	$ 0.05	$ 0.20
Weighted average shares outstanding:
Basic	386	384	382
Diluted	386	384	382
Sales [Member]
Revenue
Revenue	$ 3,769	$ 4,409	$ 5,862
Cost of revenue
Cost of revenue	3,369	4,313	5,696
Service [Member]
Revenue
Revenue	1,114	1,091	1,517
Cost of revenue
Cost of revenue	951	929	1,188
Rental [Member]
Revenue
Revenue	641	590	1,100
Cost of revenue
Cost of revenue	$ 430	$ 414	$ 750

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