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Basis of Presentation (Details)
$ in Millions
3 Months Ended
Mar. 31, 2019
USD ($)
country
Mar. 31, 2018
USD ($)
Jan. 01, 2019
USD ($)
Dec. 31, 2018
USD ($)
Summary of Significant Accounting Policies [Line Items]        
Net revenues $ 6,538 $ 6,765    
Number of countries in which products are sold (more than) | country 150      
Number of countries in which entity operates (more than) | country 80      
Outstanding principal amount of receivables sold under factoring arrangement $ 808     $ 819
ASU 2016-02        
Summary of Significant Accounting Policies [Line Items]        
Lease related assets     $ 710  
Lease related liabilities     $ 730  
Argentina        
Summary of Significant Accounting Policies [Line Items]        
Net monetary assets position 2      
Net revenues $ 100      
Percentage of consolidated net revenues 1.50%      
Argentina | Selling, general and administrative expenses        
Summary of Significant Accounting Policies [Line Items]        
Remeasurement loss due to inflationary accounting $ 2      
U.K. | Geographic Concentration Risk | Net Revenues        
Summary of Significant Accounting Policies [Line Items]        
Concentration risk percentage 9.30%