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Goodwill and Other Intangible Assets, net (Schedule of Goodwill and Intangible Assets by Segment) (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Line Items]      
Goodwill $ 5,177 $ 5,177 $ 5,196
Other Intangible Assets, net 12,615 12,687 $ 12,279
Smokeable Products [Member]      
Goodwill [Line Items]      
Goodwill 99 99  
Other Intangible Assets, net 3,044 3,071  
Oral Tobacco Products [Member]      
Goodwill [Line Items]      
Goodwill 5,078 5,078  
Other Intangible Assets, net 9,164 9,196  
Wine [Member]      
Goodwill [Line Items]      
Goodwill 0 0  
Other Intangible Assets, net 237 238  
Other [Member]      
Goodwill [Line Items]      
Goodwill 0 0  
Other Intangible Assets, net $ 170 $ 182