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Basis of Presentation - Additional Information (Detail)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Country
Subsidiary
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Country
Subsidiary
Segment
Jun. 30, 2016
USD ($)
Dec. 31, 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 $ 5,986 $ 6,302 $ 12,400 $ 12,757    
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
Total incremental cost of factoring receivables $ 2 1 $ 3 2    
Outstanding principal amount of receivables sold under factoring arrangement 594   594     644
Argentina            
Summary Of Significant Accounting Policies [Line Items]            
Net revenues $ 159   $ 301      
Percentage of consolidated net revenues 2.70%   2.40%      
UKRAINE            
Summary Of Significant Accounting Policies [Line Items]            
Net revenues $ 15   $ 30      
Percentage of consolidated net revenues 0.30%   0.20%      
UKRAINE | Maximum            
Summary Of Significant Accounting Policies [Line Items]            
Three-year cumulative inflation rate 100.00%   100.00%      
UKRAINE | Scenario, Forecast | Maximum            
Summary Of Significant Accounting Policies [Line Items]            
Three-year cumulative inflation rate         100.00%  
Customer            
Summary Of Significant Accounting Policies [Line Items]            
Total incremental cost of factoring receivables   $ 2 $ 1 $ 3    
Outstanding principal amount of receivables sold under factoring arrangement $ 38   $ 38     $ 101
Customer | Maximum            
Summary Of Significant Accounting Policies [Line Items]            
Total incremental cost of factoring receivables $ 1