Segment Reporting (Segment Data Schedule) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net revenues	$ 6,101	$ 6,729	$ 6,663	$ 6,083	$ 6,252	$ 6,905	$ 6,521	$ 6,066	$ 25,576	$ 25,744	$ 25,434
Amortization of intangibles									(21)	(21)	(21)
Reduction of PMI tax-related receivable									0	0	(41)
Corporate asset impairment and exit costs									(33)	(179)	(4)
Operating income									9,556	8,762	8,361
Interest and other debt expense, net									(705)	(747)	(817)
Loss on early extinguishment of debt					0	(823)	0	0	0	(823)	(228)
Earnings from equity investment in AB InBev/SABMiller									532	795	757
Gain on AB InBev/SABMiller business combination	$ 0	$ 37	$ 408	$ 0	$ 13,660	$ 48	$ 117	$ 40	445	13,865	5
Earnings before income taxes									9,828	21,852	8,078
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
General corporate expenses									(227)	(222)	(237)
Corporate asset impairment and exit costs									0	(5)	0
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Amortization of intangibles									(21)	(21)	(21)
Smokeable Products [Member]
Segment Reporting Information [Line Items]
Net revenues									22,636	22,851	22,792
Smokeable Products [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Corporate asset impairment and exit costs									(5)	(125)
Operating income									8,408	7,768	7,569
Smokeless Products [Member]
Segment Reporting Information [Line Items]
Net revenues									2,155	2,051	1,879
Smokeless Products [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Corporate asset impairment and exit costs									(28)	(42)
Operating income									1,300	1,177	1,108
Wine [Member]
Segment Reporting Information [Line Items]
Net revenues									698	746	692
Wine [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income									147	164	152
All Other [Member]
Segment Reporting Information [Line Items]
Net revenues									87	96	71
All Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Corporate asset impairment and exit costs										(7)
Operating income									$ (51)	$ (99)	$ (169)