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Segment Reporting - Additional Information (Detail)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
Segment
Sep. 30, 2015
USD ($)
Segment Reporting Information [Line Items]        
Number of reportable operating segments | Segment     5  
Operating income (loss) $ 702 $ 7,802 $ 2,062 $ 9,454
Asia Pacific Segment        
Segment Reporting Information [Line Items]        
Operating income (loss) 135 71 378 321
EEMEA Segment        
Segment Reporting Information [Line Items]        
Operating income (loss) 44 52 154 184
North America Segment        
Segment Reporting Information [Line Items]        
Operating income (loss) $ 274 $ 275 $ 840 817
Equity Method Investments        
Segment Reporting Information [Line Items]        
Operating income (loss)       56
Equity Method Investments | Asia Pacific Segment        
Segment Reporting Information [Line Items]        
Operating income (loss)       49
Equity Method Investments | EEMEA Segment        
Segment Reporting Information [Line Items]        
Operating income (loss)       3
Equity Method Investments | North America Segment        
Segment Reporting Information [Line Items]        
Operating income (loss)       $ 4