Contingencies (Schedule of Pending Cases) (Details) $ in Millions		3 Months Ended		9 Months Ended
	Oct. 28, 2024 lawsuit claim case	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 23, 2023 claim	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 24, 2022 claim
Loss Contingencies [Line Items]
Pre-tax charge | $		$ 136	$ 373	$ 136	$ 373	$ 151	$ 346		$ 381	$ 71
Payments | $		(37)	(31)	(300)	(122)
Tobacco and Health Judgment [Member] | Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision | $		21	23	59	75
Agreement To Resolve Shareholder Class Action | Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision | $		$ 0	0	$ 0	$ 98
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending								167			161
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending								1			1
E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision | $			$ 10
Number of cases pending								5,177			4,351
Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending								3			3
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit	17
Subsequent Event [Member] | Opted Out of Settlement [Member]
Loss Contingencies [Line Items]
Number of cases	20
Subsequent Event [Member] | Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	178
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Illinois [Member]
Loss Contingencies [Line Items]
Number of cases pending	19
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | New Mexico [Member]
Loss Contingencies [Line Items]
Number of cases pending	17
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	74
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Oregon [Member]
Loss Contingencies [Line Items]
Number of cases pending	11
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Hawaii [Member]
Loss Contingencies [Line Items]
Number of cases pending	2
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	26
Subsequent Event [Member] | ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases | case	146
Subsequent Event [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	1
Subsequent Event [Member] | E-vapor Litigation [Member]
Loss Contingencies [Line Items]
Number of cases pending	75
Loss contingency, class action lawsuit | lawsuit	16
Subsequent Event [Member] | E-vapor Litigation [Member] | Canada [Member]
Loss Contingencies [Line Items]
Number of cases pending	3
Loss contingency, class action lawsuit | lawsuit	3
Subsequent Event [Member] | E-vapor Litigation [Member] | Participating in Settlement but Pending Dismissal
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit	13
Subsequent Event [Member] | E-vapor Litigation [Member] | Pending Individual Lawsuits [Member]
Loss Contingencies [Line Items]
Number of cases pending	1
Subsequent Event [Member] | E-vapor Litigation [Member] | Subject to Separate Settlement [Member]
Loss Contingencies [Line Items]
Number of cases	38
Subsequent Event [Member] | Other Tabacco-Related Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	3
Loss contingency, number of inactive cases | case	1
Loss contingency, number of inactive class action lawsuits | case	2