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Segment Reporting (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Aspinall [Member] | PM USA [Member]    
Segment Reporting Information [Line Items]    
Provision related to litigation recorded   $ 32
Operating Segments [Member] | Smokeless Products [Member]    
Segment Reporting Information [Line Items]    
Recall impact on operating income $ 60  
Operating Segments [Member] | Selling, General and Administrative Expenses [Member] | Smokeable Products [Member] | Aspinall [Member] | PM USA [Member]    
Segment Reporting Information [Line Items]    
Provision related to litigation recorded   26
Operating Segments [Member] | Interest Expense [Member] | Smokeable Products [Member] | Aspinall [Member] | PM USA [Member]    
Segment Reporting Information [Line Items]    
Provision related to litigation recorded   $ 12