Investments in Equity Securities (Earnings from Equity Investments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments [Line Items]
(Income) losses from investments in equity securities	$ (652)	$ (493)	$ 2,201
(Income) losses from investments in equity securities	(652)	(243)	3,656
ABI [Member]
Investments [Line Items]
(Income) losses from investments in equity securities	(673)	(539)	1,973
Gain on partial sale of our investment	165
Cronos [Member]
Investments [Line Items]
(Income) losses from investments in equity securities	21	46	228
JUUL [Member]
Investments [Line Items]
JUUL	$ 0	$ 250	$ 1,455