Investments in Equity Securities (Earnings in Equity Securities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Equity Method Investments [Line Items]
(Income) losses from investments under equity method of accounting	$ (116)	$ (58)	$ (530)	$ (355)
(Income) losses from investments in equity securities	(116)	(58)	(530)	(105)
ABI [Member]
Schedule of Equity Method Investments [Line Items]
(Income) losses from investments under equity method of accounting	(121)	(61)	(555)	(401)
Gain on partial sale of our investment			165
Cronos [Member]
Schedule of Equity Method Investments [Line Items]
(Income) losses from investments under equity method of accounting	5	3	25	46
JUUL [Member]
Schedule of Equity Method Investments [Line Items]
Loss on disposition of JUUL equity securities	$ 0	$ 0	$ 0	$ 250