Segment Reporting (Segment Data Schedule) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Net revenues	$ 5,628	$ 6,108
Operating income	2,238	2,316
Corporate asset impairment and exit costs	40	2
Interest and other debt expense, net	(384)	(166)
Net periodic benefit income, excluding service cost	1	7
Earnings from equity investment in AB InBev	86	342
Loss on Cronos-related financial instruments	(425)	0
Loss on AB InBev/SABMiller business combination	0	(33)
(Loss) earnings before income taxes and equity earnings of subsidiaries	1,516	2,466
Smokeable Products [Member]
Segment Reporting Information [Line Items]
Net revenues	4,935	5,414
Smokeless Products [Member]
Segment Reporting Information [Line Items]
Net revenues	540	525
Wine [Member]
Segment Reporting Information [Line Items]
Net revenues	151	142
All Other [Member]
Segment Reporting Information [Line Items]
Net revenues	2	27
Operating Segments [Member] | Smokeable Products [Member]
Segment Reporting Information [Line Items]
Operating income	1,932	2,038
Corporate asset impairment and exit costs	36	0
Operating Segments [Member] | Smokeless Products [Member]
Segment Reporting Information [Line Items]
Operating income	358	338
Corporate asset impairment and exit costs	8	2
Operating Segments [Member] | Wine [Member]
Segment Reporting Information [Line Items]
Operating income	15	17
Operating Segments [Member] | All Other [Member]
Segment Reporting Information [Line Items]
Operating income	(12)	(26)
Corporate asset impairment and exit costs	(5)	0
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Amortization of intangibles	(8)	(5)
General corporate [Member]
Segment Reporting Information [Line Items]
General corporate expenses	(46)	(46)
Corporate asset impairment and exit costs	$ 1	$ 0