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Contingencies (Schedule of Pending Cases) (Details) $ in Millions		3 Months Ended
	Apr. 24, 2025 claim case lawsuit	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Apr. 22, 2024 claim	Dec. 31, 2023 USD ($)	Apr. 24, 2023 claim
Loss Contingencies [Line Items]
Pre-tax charge \| $		$ 118	$ 364	$ 96		$ 346
Payments \| $		(18)	(6)
Tobacco and Health Judgment [Member] \| Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision \| $		36	18
Shareholder derivative lawsuits [Member] \| Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision \| $		$ 0	0
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending					174		167
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending					1		1
E-vapor Cases [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision \| $			$ 10
Number of cases pending					5,177		5,270
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	198
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Illinois [Member]
Loss Contingencies [Line Items]
Number of cases pending	32
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| New Mexico [Member]
Loss Contingencies [Line Items]
Number of cases pending	14
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	84
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Oregon [Member]
Loss Contingencies [Line Items]
Number of cases pending	15
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Hawaii [Member]
Loss Contingencies [Line Items]
Number of cases pending	5
Subsequent Event [Member] \| Individual Smoking and Health Cases [Member] \| Pending Litigation [Member] \| Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	24
Subsequent Event [Member] \| ETS Smoking and Health Case, Flight Attendants [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases \| case	14
Subsequent Event [Member] \| Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending	1
Subsequent Event [Member] \| E-vapor Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	24
Subsequent Event [Member] \| E-vapor Cases [Member] \| Canada [Member]
Loss Contingencies [Line Items]
Number of cases pending	3
Loss contingency, class action lawsuit \| lawsuit	3
Subsequent Event [Member] \| E-vapor Cases [Member] \| Pending Individual Lawsuits [Member]
Loss Contingencies [Line Items]
Number of cases pending	1
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