Contingencies (Antitrust Litigation) (Details) - shareholder		3 Months Ended
	Jan. 25, 2021	Dec. 31, 2019	Dec. 31, 2020	Apr. 30, 2020	Dec. 31, 2018
Loss Contingencies [Line Items]
Loss contingency, number of shareholders filing class action lawsuits		2
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, number of shareholders filing class action lawsuits	16
JUUL [Member]
Loss Contingencies [Line Items]
Equity securities without readily determinable fair value, ownership percentage			35.00%	35.00%	35.00%