Contingencies (Non-Engle Progeny Litigation) (Details) - USD ($)	1 Months Ended
	Apr. 30, 2019	Sep. 30, 2019	Aug. 31, 2019	Dec. 31, 2018	Oct. 31, 2017
Non-Engle Progeny Smoking and Health Case, Greene [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded		$ 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
Non-Engle Progeny Smoking and Health Case, Capone [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded				$ 225,000
Provision related to litigation recorded	$ 325,000
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 awarded					$ 5,300,000
Compensatory damages award, allocation percentage					75.00%