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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 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Revenue $ 2,126 $ 2,154 $ 6,198 $ 6,055
Other income (expense), net (10) (20) (36) (70)
Tax effect (60) (29) 323 (37)
Net income (loss) attributable to Company (244) 1 (5,710) (43)
Reclassification out of Accumulated Other Comprehensive Income [Member]        
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]        
Revenue 0 1 1 0
Cost of revenue 4 2 7 (3)
Other income (expense), net   6   6
Tax effect (1) (1) (2) 1
Net income (loss) attributable to Company 3 8 6 4
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   6
Net income (loss) attributable to Company   6   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   1 1  
Cost of revenue 4 2 7 (3)
Tax effect (1) (1) (2) 1
Net income (loss) attributable to Company $ 3 $ 2 $ 6 $ (2)