Contingencies (Other Smoking and Health Class Actions) (Details) $ in Millions, $ in Billions	1 Months Ended		72 Months Ended	359 Months Ended
	Aug. 31, 2025 CAD ($)	Mar. 31, 2019 CAD ($) ruling manufacturer	Dec. 31, 2023 USD ($)	Mar. 31, 2026 case manufacturer	Apr. 27, 2026 case claim
Smoking And Health Class Actions [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending \| claim					1
PM USA [Member]
Loss Contingencies [Line Items]
Payments for legal settlements \| $			$ 7
PM USA [Member] \| Smoking and Health Class Actions and Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Class not certified \| case				60
Canada [Member] \| Philip Morris USA and Altria Group [Member] \| Smoking and Health Class Actions and Aggregated Claims Litigation [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending \| case					6
Canada [Member] \| Canadian Tobacco Manufacturers [Member] \| Smoking and Health Class Actions and Aggregated Claims Litigation [Member]
Loss Contingencies [Line Items]
Number of manufacturers \| manufacturer		3		3
Number of verdicts upheld \| ruling		2
Amount awarded to other party \| $		$ 13.0
Canada [Member] \| Canadian Tobacco Manufacturers [Member] \| Smoking And Health Class Actions [Member]
Loss Contingencies [Line Items]
Payments for legal settlements \| $	$ 32.5
Canada [Member] \| Altria Group [Member] \| Smoking And Health Class Actions [Member]
Loss Contingencies [Line Items]
Number of manufacturers \| manufacturer		0
British Columbia and Saskatchewan [Member] \| Philip Morris USA and Altria Group [Member] \| Smoking and Health Class Actions and Aggregated Claims Litigation [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of cases pending \| case					2