Segment Reporting (Segment Data Schedule) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net revenues		$ 25,096	$ 26,013	$ 26,153
Operating income		11,919	11,560	10,873
Amortization of intangibles		(73)	(72)	(72)
Interest and other debt expense, net		1,058	1,162	1,209
Loss on early extinguishment of debt	$ 649	0	649	0
Net periodic benefit income, excluding service cost		(184)	(202)	(77)
(Income) losses from investments in equity securities		3,641	5,979	111
Impairment of JUUL equity securities		0	0	2,600
Loss on Cronos-related financial instruments		15	148	140
Earnings before income taxes		7,389	3,824	6,890
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
General corporate expenses		(292)	(345)	(226)
Smokeable Products [Member]
Segment Reporting Information [Line Items]
Net revenues		22,476	22,866	23,089
Smokeable Products [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income		10,688	10,394	9,985
Oral Tobacco Products [Member]
Segment Reporting Information [Line Items]
Net revenues		2,580	2,608	2,533
Oral Tobacco Products [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income		1,632	1,659	1,718
Wine [Member]
Segment Reporting Information [Line Items]
Net revenues		0	494	614
Wine [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income		0	21	(360)
All Other [Member]
Segment Reporting Information [Line Items]
Net revenues		40	45	(83)
All Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income		$ (36)	$ (97)	$ (172)