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Consolidated Statements of Income (Loss) - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Revenue      
Sales $ 4,948 $ 5,351 $ 11,707
Services 2,356 1,900 3,050
Total 7,304 7,251 14,757
Cost of revenue      
Cost of sales 4,499 5,671 9,362
Cost of services 1,913 1,681 2,332
Total 6,412 7,352 11,694
Gross profit (loss) 892 (101) 3,063
Selling, general and administrative 1,169 1,338 1,764
Goodwill and intangible asset impairment   972 1,689
Operating loss (277) (2,411) (390)
Interest and financial costs (102) (105) (103)
Interest income 25 15 14
Equity income (loss) in unconsolidated affiliates (5) (21) 13
Other income (expense), net (33) (101) (123)
Loss before income taxes (392) (2,623) (589)
Provision for income taxes (156) (207) 178
Net loss (236) (2,416) (767)
Net income (loss) attributable to noncontrolling interests 1 (4) 2
Net loss attributable to Company $ (237) $ (2,412) $ (769)
Net loss attributable to Company per share:      
Basic $ (0.63) $ (6.41) $ (1.99)
Diluted (0.63) (6.41) (1.99)
Cash dividends per share $ 0.20 $ 0.61 $ 1.84
Weighted average shares outstanding:      
Basic 377 376 387
Diluted 377 376 387