Contingencies (Non-Engle Progeny Litigation) (Details) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2021	Feb. 28, 2021	May 31, 2020	Feb. 29, 2020	Sep. 30, 2019	Aug. 31, 2019	Oct. 31, 2017
Loss Contingencies [Line Items]
Provision related to litigation recorded			$ 90,000,000
Non-Engle Progeny Smoking And Health Case, Principe [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded						$ 11,000,000
Punitive damages awarded						$ 0
Non-Engle Progeny Smoking and Health Case, Greene [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded				$ 2,300,000	$ 30,000,000		$ 10,000,000
Non-Engle Progeny Smoking and Health Case, Laramie [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded								$ 11,000,000
Punitive damages awarded								$ 10,000,000
Damages awarded, value		$ 21,000,000
Provision related to litigation recorded	$ 30,300,000	$ 27,100,000
Non-Engle Progeny Smoking and Health Case, Gentile [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded									$ 7,100,000
Non-Engle Progeny Smoking and Health Case, Gentile [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages award, allocation percentage									75.00%