Contingencies (Schedule of Pending Cases) (Details)	12 Months Ended
	Dec. 31, 2023 case lawsuit claim	Dec. 31, 2022 claim	Dec. 31, 2021 claim
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	172	162	176
Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Illinois [Member]
Loss Contingencies [Line Items]
Number of cases pending	16
Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | New Mexico [Member]
Loss Contingencies [Line Items]
Number of cases pending	16
Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	58
Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	48
ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases	1,385
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	1	1	1
E-vapor Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	5,177	5,283	3,296
Number of class action lawsuits | lawsuit	57
Loss contingency, number of patent infringement lawsuits | lawsuit	3
E-vapor Cases [Member] | Pending Individual Lawsuits [Member]
Loss Contingencies [Line Items]
Number of cases pending | lawsuit	3,614
E-vapor Cases [Member] | Pending Lawsuits Filed By State Or Local Governments [Member]
Loss Contingencies [Line Items]
Number of cases pending | lawsuit	1,506
E-vapor Cases [Member] | Class Action Lawsuit [Member]
Loss Contingencies [Line Items]
Loss contingency, pending claims, consolidated for pre-trial purposes, number	32
Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim	3	3	3
Number of inactive cases	1
Number of cases alleging unfair practices	2