Contingencies (Health Care Cost Recovery Litigation) (Details) $ in Billions	1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2019 CAD ($) manufacturer	Nov. 30, 1998 USD ($) state	Sep. 30, 2025 USD ($) court claim manufacturer	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) court claim manufacturer	Sep. 30, 2024 USD ($)	Oct. 28, 2024 claim	Oct. 23, 2023 claim
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of federal courts | court			9		9
Number of state courts | court			8		8
Number refused by federal courts | court			5		5
Number of cases pending | claim							1	1
Number of states with settled litigation | state		46
State settlement agreements annual payments		$ 10,400,000,000
State settlement agreements attorney fees annual cap		$ 500,000,000
Litigation settlement			$ 800,000,000	$ 900,000,000	$ 2,300,000,000	$ 2,700,000,000
Threatened Litigation [Member] | Canada [Member] | Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Number of cases pending | claim			10		10
Canadian Tobacco Manufacturers [Member] | Canada [Member] | Smoking and Health Class Actions and Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of manufacturers | manufacturer	3		3		3
Litigation settlement	$ 13