Contingencies (Antitrust Litigation and Shareholder Class Action and Shareholder Derivative Lawsuits) (Details)	1 Months Ended
	Aug. 31, 2020 shareholder	Dec. 31, 2019 shareholder	Oct. 27, 2020 lawsuit	Sep. 30, 2020	Apr. 30, 2020	Dec. 31, 2018
Loss Contingencies [Line Items]
Loss contingency, number of shareholders filing class action lawsuits | shareholder	2	2
JUUL [Member]
Loss Contingencies [Line Items]
Equity securities, ownership percentage		35.00%		35.00%	35.00%	35.00%
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit			16