Investments in Equity Securities (Earnings in Equity Securities) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule of Equity Method Investments [Line Items]
(Income) losses from investments under equity method of accounting	$ 108	$ 25	$ (26)	$ (226)
(Income) losses from equity investments	1,263	(75)	1,229	(126)
ABI [Member]
Schedule of Equity Method Investments [Line Items]
(Income) losses from investments under equity method of accounting	(12)	(74)	(212)	(392)
Cronos [Member]
Schedule of Equity Method Investments [Line Items]
(Income) losses from investments under equity method of accounting	120	99	186	166
JUUL [Member]
Schedule of Equity Method Investments [Line Items]
JUUL	$ 1,155	$ (100)	$ 1,255	$ 100