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Consolidated Statements of Income (Loss) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Revenue	$ 8,479	$ 8,453	$ 7,304
Cost of revenue
Cost of revenue	7,634	7,009	6,412
Gross profit (loss)	845	1,444	892
Selling, general and administrative	1,303	1,233	1,169
Goodwill and indefinite-lived intangible asset impairment	3,612
Long-lived asset impairment	2,209
Operating profit (loss)	(6,279)	211	(277)
Interest and financial costs	(100)	(93)	(102)
Interest income	20	25	25
Equity loss in unconsolidated affiliates	(13)	(3)	(5)
Other income (expense), net	(90)	(99)	(33)
Income (loss) before income taxes	(6,462)	41	(392)
Provision (benefit) for income taxes	(369)	63	(156)
Net loss	(6,093)	(22)	(236)
Net income (loss) attributable to noncontrolling interests	2	9	1
Net loss attributable to Company	$ (6,095)	$ (31)	$ (237)
Net loss attributable to Company per share:
Basic	$ (15.96)	$ (0.08)	$ (0.63)
Diluted	(15.96)	(0.08)	(0.63)
Cash dividends per share	$ 0.20	$ 0.20	$ 0.20
Weighted average shares outstanding:
Basic	382	378	377
Diluted	382	378	377
Sales [Member]
Revenue
Revenue	$ 5,862	$ 5,699	$ 4,948
Cost of revenue
Cost of revenue	5,696	4,883	4,499
Service [Member]
Revenue
Revenue	1,517	1,612	1,472
Cost of revenue
Cost of revenue	1,188	1,257	1,127
Rental [Member]
Revenue
Revenue	1,100	1,142	884
Cost of revenue
Cost of revenue	$ 750	$ 869	$ 786

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