Contingencies: (Verdicts and Post-Trial Developments) (Details) - Judicial Ruling	Dec. 16, 2021 USD ($)	Dec. 16, 2021 ARS ($)	Jul. 02, 2021 USD ($)	Jul. 02, 2021 ARS ($)	Jun. 17, 2021 USD ($)	Jun. 17, 2021 ARS ($)	Mar. 01, 2019 CAD ($)	Mar. 01, 2019 USD ($)	Aug. 05, 2016 USD ($)	Aug. 05, 2016 ARS ($)	May 27, 2015 CAD ($)	May 27, 2015 USD ($)
Canada | Smoking and Health Class Actions | Conseil Quebecois Sur Le Tabac Et La Sante and Jean-Yves Blais | Imperial Tobacco Ltd., Rothmans, Benson And Hedges Inc., And JTI Macdonald Corp.
Loss Contingencies [Line Items]
Compensatory damages awarded											$ 15,500,000,000	$ 11,500,000,000
Punitive damages awarded											90,000	67,000
Awarded compensatory damages that are to be deposited into trust											1,000,000,000	745,000,000
Canada | Smoking and Health Class Actions | Conseil Quebecois Sur Le Tabac Et La Sante and Jean-Yves Blais | RBH
Loss Contingencies [Line Items]
Compensatory damages awarded							$ 2,700,000,000	$ 2,000,000,000			$ 3,100,000,000	$ 2,300,000,000
Damages allocated to subsidiary (percent)							20.00%	20.00%			20.00%	20.00%
Punitive damages awarded											$ 30,000	$ 22,000
Awarded compensatory damages that are to be deposited into trust											$ 200,000,000	$ 149,000,000
Payment period for compensatory damages to be deposited into trust											60 days	60 days
Canada | Smoking and Health Class Actions | Cecilia Letourneau | Imperial Tobacco Ltd., Rothmans, Benson And Hedges Inc., And JTI Macdonald Corp.
Loss Contingencies [Line Items]
Punitive damages awarded											$ 131,000,000	$ 98,000,000
Canada | Smoking and Health Class Actions | Cecilia Letourneau | RBH
Loss Contingencies [Line Items]
Punitive damages awarded											$ 46,000,000	$ 34,300,000
Payment period for awarded punitive damages to be deposited into trust											60 days	60 days
Argentina | Smoking And Health Individual Actions | Hugo Lespada
Loss Contingencies [Line Items]
Compensatory damages awarded									$ 584	$ 110,000
Argentina | Smoking And Health Individual Actions | Claudia Milano
Loss Contingencies [Line Items]
Compensatory damages awarded					$ 796	$ 150,000
Punitive damages awarded					$ 21,218	$ 4,000,000
Damages awarded that are to be deposited into trust			$ 32,435	$ 6,114,428
Damages returned to subsidiary	$ 4,739	$ 893,428