Investments in Equity Securities (Investment in JUUL Narrative) (Details) - JUUL [Member] shares in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Dec. 31, 2018 USD ($)	Mar. 31, 2022 USD ($) director shares	Mar. 31, 2021 USD ($)	Apr. 30, 2020	Jan. 31, 2020
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity securities without readily determinable fair value | $	$ 12,800
Equity securities, ownership percentage	35.00%	35.00%		35.00%
Equity investments, fair value option, voting shares (in shares) | shares		42
Equity securities without readily determinable fair value, service agreement term		6 years
Equity securities without readily determinable fair value, non-compete release trigger percentage of investment carrying value					10.00%
Equity securities without readily determinable fair value, quantitative assessment adjustment, annual amount | $	$ 12,800
Equity securities without readily determinable fair value, number of board members		7
Equity securities without readily determinable fair value, number of board members upon share conversion		9
Equity securities without readily determinable fair value, number of independent board members upon share conversion		3
Equity securities without readily determinable fair value, number of board members appointed by investor upon share conversion		1
Equity securities without readily determinable fair value, number of board members appointed by investee stockholders upon share conversion		2
Equity securities without readily determinable fair value, number of investor nominating committee designees upon share conversion		1
Equity securities without readily determinable fair value, number of directors designated by investor upon share conversion		2
Equity securities without readily determinable fair value, number of nominating committee directors designated by investee upon share conversion		3
Income (loss) from equity investments, fair value option | $		$ (100)	$ (200)