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Contingencies (Engle Class Action And Engle Progeny Trial Results) (Details)
1 Months Ended
Apr. 27, 2020
USD ($)
case
plantiff
Jul. 31, 2006
Jan. 31, 2008
case
Jul. 31, 2000
USD ($)
Engle Progeny Cases [Member]        
Loss Contingencies [Line Items]        
Punitive damages awarded | $       $ 145,000,000,000
Engle Progeny Cases [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Punitive damages awarded | $       $ 74,000,000,000
Period for decertified class members could file individual actions   1 year    
Engle Progeny Cases, State [Member]        
Loss Contingencies [Line Items]        
Number of cases pending     9,300  
Subsequent Event [Member] | Engle Progeny Cases [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of verdicts returned 134      
Number of unfavorable verdicts 78      
Number of claims with unfavorable verdicts pending/reversed 4      
Number of favorable verdicts 47      
Subsequent Event [Member] | Engle Progeny Cases, State [Member]        
Loss Contingencies [Line Items]        
Number of cases pending 1,500      
Number of plaintiffs | plantiff 1,900      
Subsequent Event [Member] | Engle Progeny Cases, State [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of favorable verdicts 42      
Subsequent Event [Member] | Engle Progeny Cases, Federal [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of cases pending 4      
Subsequent Event [Member] | Engle Progeny Cases, D Cohen, Collar, Chacon [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of verdicts reversed 4      
Subsequent Event [Member] | Engle Progeny Cases, Reider and Banks [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Zero damages verdicts 2      
Damages awarded, value | $ $ 0      
Subsequent Event [Member] | Engle Progeny Cases, Weingart and Hancock [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Damages awarded, value | $ $ 0      
Zero damages verdict modified 2      
Subsequent Event [Member] | Engle Progeny Cases, Pollari [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of favorable verdicts 1      
Subsequent Event [Member] | Engle Progeny Cases, Gloger, Rintoul and Duignam [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of favorable verdicts 3      
Subsequent Event [Member] | Engle Progeny Cases, Freeman [Member] | PM USA [Member]        
Loss Contingencies [Line Items]        
Number of favorable verdicts 1