Contingencies (Schedule of Pending Cases) (Details)		1 Months Ended
	Apr. 27, 2020 case lawsuit claim	Mar. 31, 2018 case	Apr. 30, 2020 lawsuit	Apr. 22, 2019 case	Apr. 23, 2018 case
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending				98	102
ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of claims dismissed		923
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending				1	1
E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending				2	3
Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending				0	0
Loss contingency, number of inactive cases				2
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit			3
Subsequent Event [Member] | Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	109
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	22
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	46
Subsequent Event [Member] | ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases	1,472
Subsequent Event [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	0
Subsequent Event [Member] | E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	202
Loss contingency, class action lawsuit | lawsuit	24
Number of cases set for trial | claim	0
Subsequent Event [Member] | E-vapor Litigation [Member] | Pending Individual Lawsuits [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	170
Subsequent Event [Member] | E-vapor Litigation [Member] | Pending Lawsuits Filed By State Or Local Governments [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	5
Subsequent Event [Member] | E-vapor Litigation [Member] | Pending Lawsuit Filed By School District [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	3
Subsequent Event [Member] | Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	4
Loss contingency, number of inactive cases	2
Loss contingency, number of cases tried in a single proceeding	1
Loss contingency, number of inactive class action lawsuits	2
PM USA [Member] | Subsequent Event [Member] | Engle Progeny Cases [Member]
Loss Contingencies [Line Items]
Number of cases set for trial	2
PM USA [Member] | Subsequent Event [Member] | Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases set for trial	0