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Contingencies (Federal Government's Lawsuit Narrative) (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2011
Jun. 30, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 1999
Loss Contingencies [Line Items]            
Loss contingency, amount of district court deposit     $ 190.0 $ 57.0 $ 8.0  
Federal Governments Lawsuit [Member]            
Loss Contingencies [Line Items]            
Amount of alleged annual costs health care programs, minimum           $ 20,000.0
Damages sought, value           $ 280,000.0
Federal Governments Lawsuit [Member] | Philip Morris USA [Member]            
Loss Contingencies [Line Items]            
Loss contingency, amount of district court deposit $ 3.1          
Loss contingency installment period, years 5 years          
Implementation of Corrective Communications [Member]            
Loss Contingencies [Line Items]            
Provision related to litigation recorded     $ 0.0 $ 0.0 $ 31.0  
Implementation of Corrective Communications [Member] | Federal Governments Lawsuit [Member]            
Loss Contingencies [Line Items]            
Provision related to litigation recorded   $ 31.0        
Implementation of Corrective Communications [Member] | Federal Governments Lawsuit [Member] | Philip Morris USA [Member]            
Loss Contingencies [Line Items]            
Provision related to litigation recorded   $ 31.0