Contingencies (Non-Engle Progeny Litigation) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Apr. 30, 2018	Oct. 31, 2017	Dec. 31, 2015
Non-Engle Progeny Smoking and Health Case, Gentile [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded			$ 7,100
Non-Engle Progeny Smoking and Health Case, Gentile [Member] | PM USA [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded			$ 5,300
Compensatory damages award, allocation percentage			75.00%
Appeal bond posted		$ 8,000
Non-Engle Progeny Smoking and Health Case, Bullock [Member]
Loss Contingencies [Line Items]
Compensatory damages awarded				$ 900
Provision related to litigation recorded	$ 1,000