Contingencies (Antitrust Litigation and Shareholder Class Action and Shareholder Derivative Lawsuits) (Details)	1 Months Ended				3 Months Ended
	Jan. 31, 2021 shareholder	Oct. 31, 2020 shareholder	Sep. 30, 2020 shareholder	Aug. 31, 2020 shareholder	Dec. 31, 2019 shareholder	Apr. 29, 2021 claim	Apr. 26, 2021 lawsuit	Mar. 31, 2021	Nov. 30, 2020 complaint	Apr. 30, 2020	Dec. 31, 2018
Loss Contingencies [Line Items]
Loss contingency, number of complaints | complaint									3
Loss contingency, number of shareholders filing class action lawsuits				2	2
Loss contingency, number of shareholders filing derivative lawsuits	1	1	1
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							16
Loss contingency, number of pending cases consolidated | claim						5