Segment Reporting (Segment Data Schedule) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net revenues	$ 6,508	$ 6,543	$ 12,227	$ 12,435
Amortization of intangibles	(27)	(18)	(45)	(35)	$ (73)
General corporate expenses	(353)	(54)	(488)	(114)
Operating income	2,905	3,105	5,662	5,989
Interest and other debt expense, net	257	280	486	561
Net periodic benefit income, excluding service cost	(31)	(47)	(62)	(93)
(Income) losses from investments in equity securities	(127)	1,263	(47)	1,229
Loss on Cronos-related financial instruments	0	4	0	14
Earnings before income taxes	2,806	1,605	5,285	4,278
Smokeable Products Segment [Member]
Segment Reporting Information [Line Items]
Net revenues	5,820	5,873	10,910	11,138
OCI	2,846	2,762	5,349	5,321
Oral Tobacco Segment [Member]
Segment Reporting Information [Line Items]
Net revenues	680	665	1,308	1,278
OCI	443	430	859	837
All Other [Member]
Segment Reporting Information [Line Items]
Net revenues	8	5	9	19
OCI	$ (4)	$ (15)	$ (13)	$ (20)