Contingencies (Schedule of Pending Cases) (Details) $ in Millions		3 Months Ended			9 Months Ended
	Oct. 27, 2025 claim case lawsuit	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Oct. 28, 2024 claim	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 23, 2023 claim
Loss Contingencies [Line Items]
Pre-tax charge | $		$ 68	$ 136		$ 68	$ 136	$ 95	$ 96		$ 151	$ 346
Payments | $		(30)	(37)		(76)	(300)
Tobacco and Health Judgment [Member] | Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision | $		4	21		44	59
Shareholder derivative lawsuits [Member] | Tobacco and Health and Certain Other Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision | $		$ 0	$ 0		$ 0	$ 0
Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending									178			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									75			5,177
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	12
Subsequent Event [Member] | Individual Smoking and Health Cases [Member]
Loss Contingencies [Line Items]
Number of cases pending	181
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Illinois [Member]
Loss Contingencies [Line Items]
Number of cases pending	28
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | New Mexico [Member]
Loss Contingencies [Line Items]
Number of cases pending	9
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Massachusetts [Member]
Loss Contingencies [Line Items]
Number of cases pending	83
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	8
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | U.S. Virgin Islands [Member]
Loss Contingencies [Line Items]
Number of cases pending	11
Subsequent Event [Member] | Individual Smoking and Health Cases [Member] | Pending Litigation [Member] | Florida [Member]
Loss Contingencies [Line Items]
Number of cases pending	12
Subsequent Event [Member] | ETS Smoking and Health Case, Flight Attendants [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of cases | case	1
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	16
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