Quarterly Financial Data (Unaudited) (Schedule of Pre-tax Charges or (Gains) Included in Net Earnings Attributable to Altria Group, Inc.) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Asset impairment, exit, implementation and acquisition-related costs	$ 73	$ 6	$ 5	$ 122
Asset impairment, exit and integration costs					$ 3	$ 1	$ 7	$ 0
Loss on early extinguishment of debt	0	823	0	0	0	0	0	228	$ 823	$ 228	$ 44
Gain on AB InBev/SABMiller business combination	(13,660)	(48)	(117)	(40)	(5)	0	0	0	(13,865)	(5)	0
SABMiller special items	(236)	(40)	21	166	30	8	2	86
Pre-tax charges (gains) included in net earnings	(13,785)	786	(86)	304	105	(50)	14	357
Earnings from equity investment									795	757	1,006
Net earnings	10,278	1,094	1,654	1,218	1,248	1,528	1,449	1,018	14,244	5,243	5,070
Net earnings attributable to Altria Group, Inc.	10,276	1,093	1,653	1,217	1,247	1,528	1,448	1,018	$ 14,239	$ 5,241	$ 5,070
NPM Adjustment [Member]
Condensed Financial Statements, Captions [Line Items]
NPM Adjustment Items	0	0	0	18	42	(126)	0	0
Tobacco and Health Litigation Items [Member]
Condensed Financial Statements, Captions [Line Items]
Tobacco and health litigation items, including accrued interest	17	45	5	38	$ 35	$ 67	$ 5	$ 43
Patent Litigation Settlement [Member]
Condensed Financial Statements, Captions [Line Items]
NPM Adjustment Items	21	$ 0	$ 0	$ 0
SABMiller Plc [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings	201
Net earnings attributable to Altria Group, Inc.	$ 201
Diluted EPS attributable to Altria Group, Inc. (usd per share)	$ 0.10
SABMiller Plc [Member] | The Coca-Cola Company and Gutsche Family Investments [Member]
Condensed Financial Statements, Captions [Line Items]
Earnings from equity investment	$ 309