Contingencies (E-vapor Product Litigation) (Details) - E-vapor Litigation [Member]	Jul. 24, 2020 case	Jul. 24, 2020 state	Jul. 24, 2020 claim	Jul. 26, 2019 case	Jul. 23, 2018 case
Loss Contingencies [Line Items]
Number of cases pending | case
Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending | case	621
Number of cases set for trial			0
Class Action Lawsuit [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending			25
Pending Individual Lawsuits [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending			561
Pending Lawsuits Filed By State Or Local Governments [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending		24	14
Pending Lawsuit Filed By School District [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending			11