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Net Revenues by Segment (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Segment Reporting Information [Line Items]        
Net revenues $ 5,986 $ 6,302 $ 12,400 $ 12,757
Latin America Segment        
Segment Reporting Information [Line Items]        
Net revenues 848 843 1,758 1,660
Asia Middle East Africa Segment        
Segment Reporting Information [Line Items]        
Net revenues 1,394 1,446 2,885 2,961
Europe Segment        
Segment Reporting Information [Line Items]        
Net revenues 2,171 2,293 4,536 4,741
North America Segment        
Segment Reporting Information [Line Items]        
Net revenues $ 1,573 $ 1,720 $ 3,221 $ 3,395