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Consolidated Statements of Income (Loss) (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue	$ 2,132	$ 2,106	$ 4,072	$ 3,901
Cost of revenue	2,070	1,751	3,754	3,259
Gross profit	62	355	318	642
Selling, general and administrative	417	303	721	591
Goodwill and indefinite-lived intangible asset impairment	3,186		3,186
Long-lived asset impairment	2,187		2,187
Operating profit (loss)	(5,728)	52	(5,776)	51
Interest and financial costs	(25)	(23)	(50)	(47)
Interest income	6	5	12	12
Equity income (loss) in unconsolidated affiliates	(2)	(1)	(2)	1
Other income (expense), net	(8)	(3)	(26)	(50)
Income (loss) before income taxes	(5,757)	30	(5,842)	(33)
Provision (benefit) for income taxes	(373)	5	(383)	8
Net income (loss)	(5,384)	25	(5,459)	(41)
Net income attributable to noncontrolling interests	5	1	7	3
Net income (loss) attributable to Company	$ (5,389)	$ 24	$ (5,466)	$ (44)
Net income (loss) attributable to Company per share:
Basic	$ (14.11)	$ 0.06	$ (14.35)	$ (0.12)
Diluted	(14.11)	0.06	(14.35)	(0.12)
Cash dividends per share	$ 0.05	$ 0.05	$ 0.10	$ 0.10
Weighted average shares outstanding:
Basic	382	378	381	377
Diluted	382	381	381	377

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