Segment Reporting (Segment Data Schedule) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Net revenues	$ 5,576	$ 5,719
Amortization of intangibles	(27)	(18)
Operating income	2,674	2,757
Interest and other debt expense, net	254	229
Net periodic benefit income, excluding service cost	(24)	(31)
(Income) losses from investments in equity securities	(295)	80
Earnings before income taxes	2,739	2,479
Smokeable Products Segment [Member]
Segment Reporting Information [Line Items]
Net revenues	4,906	5,090
Oral Tobacco Segment [Member]
Segment Reporting Information [Line Items]
Net revenues	651	628
All Other [Member]
Segment Reporting Information [Line Items]
Net revenues	19	1
Operating Segments [Member] | Smokeable Products Segment [Member]
Segment Reporting Information [Line Items]
Operating income	2,439	2,503
Operating Segments [Member] | Oral Tobacco Segment [Member]
Segment Reporting Information [Line Items]
Operating income	435	416
Operating Segments [Member] | All Other [Member]
Segment Reporting Information [Line Items]
Net revenues	(61)	(9)
General corporate [Member]
Segment Reporting Information [Line Items]
General corporate expenses	$ (112)	$ (135)