Contingencies (Antitrust Litigation and Shareholder Class Actions) (Details)	3 Months Ended
	Dec. 31, 2019 shareholder	Jul. 24, 2020 lawsuit	Jun. 30, 2020	Apr. 30, 2020
Loss Contingencies [Line Items]
Loss contingency, number of shareholders filing class action lawsuits | shareholder	2
JUUL [Member]
Loss Contingencies [Line Items]
Equity securities, ownership percentage	35.00%		35.00%	35.00%
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit		14