Segment Reporting: (Long-Lived Assets By Segment) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Financial instruments	$ 701	$ 456	$ 210
Total property, plant and equipment, net and Other assets	13,163	10,641	8,717
Altria Group
Segment Reporting Information [Line Items]
Altria Group, Inc. agreement	2,777
Operating Segments
Segment Reporting Information [Line Items]
Long-lived assets:	9,685	9,183	8,507
Operating Segments \| Altria Group
Segment Reporting Information [Line Items]
Altria Group, Inc. agreement		1,002	0
Operating Segments \| Europe
Segment Reporting Information [Line Items]
Long-lived assets:	5,697	5,179	4,918
Operating Segments \| SSEA, CIS & MEA
Segment Reporting Information [Line Items]
Long-lived assets:	2,197	2,047	2,181
Operating Segments \| East Asia and Australia
Segment Reporting Information [Line Items]
Long-lived assets:	481	675	742
Operating Segments \| Americas
Segment Reporting Information [Line Items]
Long-lived assets:	$ 1,310	$ 1,282	$ 666