Segment Reporting (Schedule of Tobacco and Health and Certain Other Litigation Items) (Details) - Tobacco and Health Litigation Cases [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items]
Loss contingency accrual, provision	$ 22	$ 23	$ 90	$ 424
General corporate expenses [Member]
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items]
Loss contingency accrual, provision	0	10	30	348
Segment Reconciling Items [Member] | Interest and other debt expense, net [Member]
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items]
Loss contingency accrual, provision	1	0	1	11
PM USA [Member] | Operating Segments [Member] | Smokeable Products Segment [Member] | Smokable Products [Member]
Schedule of Pre-tax Tobacco and Health Litigation Charges [Line Items]
Loss contingency accrual, provision	$ 21	$ 13	$ 59	$ 65