Contingencies (E-vapor Product Litigation) (Details) - E-vapor Litigation [Member] - claim	Oct. 27, 2020	Oct. 28, 2019	Oct. 22, 2018
Loss Contingencies [Line Items]
Number of cases pending
Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending	1,145
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	1,064
Pending Lawsuits Filed By State Or Local Governments [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending	31
Pending Lawsuit Filed By School District [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending	25