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Accumulated Other Comprehensive Income (Loss) - Components of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]                      
Revenue $ 2,398 $ 2,154 $ 2,106 $ 1,795 $ 1,969 $ 1,835 $ 1,759 $ 1,741 $ 8,453 $ 7,304 $ 7,251
Selling, general, and administrative                 (1,233) (1,169) (1,338)
Other income (expense), net                 (99) (33) (101)
Tax effect                 (63) 156 207
Net loss attributable to Company $ 12 $ 1 $ 24 $ (68) $ (14) $ (26) $ (75) $ (122) (31) (237) (2,412)
Reclassification out of Accumulated Other Comprehensive Income [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]                      
Revenue                 2 (8) (5)
Cost of revenue                 (6) 12 191
Selling, general, and administrative                 (1) (1) (5)
Other income (expense), net                 6    
Tax effect                 2 1 (50)
Net loss attributable to Company                 3 4 131
Currency Translation Adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]                      
Other income (expense), net                 6    
Net loss attributable to Company                 6    
Derivative Financial Instruments, Net of Tax [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]                      
Revenue                 2 (8) (5)
Cost of revenue                 (6) 12 191
Tax effect                 2 1 (52)
Net loss attributable to Company                 (2) 5 134
Defined Benefit Plans, Net of Tax [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]                      
Selling, general, and administrative                 (1) (1) (5)
Tax effect                     2
Net loss attributable to Company                 $ (1) $ (1) $ (3)