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Basis of Presentation - Additional Information (Detail)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
Country
Subsidiary
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
Country
Subsidiary
Segment
Sep. 30, 2016
USD ($)
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
USD ($)
Summary Of Significant Accounting Policies [Line Items]              
Number of reportable segments | Segment     4        
Number of consolidated subsidiaries subject to highly inflationary accounting | Subsidiary 0   0        
Net revenues $ 6,530 $ 6,396 $ 18,930 $ 19,153      
Number of countries in which products are sold | Country 165   165        
Number of countries in which entity operates | Country 80   80        
Uncommitted revolving non-recourse accounts receivable factoring arrangements, maximum combined capacity             $ 1,000
Outstanding principal amount of receivables sold under factoring arrangement $ 650   $ 650       $ 644
Argentina              
Summary Of Significant Accounting Policies [Line Items]              
Net revenues $ 152   $ 454        
Percentage of consolidated net revenues 2.30%   2.40%        
UKRAINE              
Summary Of Significant Accounting Policies [Line Items]              
Net revenues $ 21   $ 51        
Percentage of consolidated net revenues 0.30%   0.30%        
UKRAINE | Maximum              
Summary Of Significant Accounting Policies [Line Items]              
Three-year cumulative inflation rate           100.00%  
UKRAINE | Scenario, Forecast | Maximum              
Summary Of Significant Accounting Policies [Line Items]              
Three-year cumulative inflation rate         100.00%