Quarterly Financial Data (Unaudited) (Schedule of Pre-tax Charges or (Gains) Included in Net Earnings Attributable to Altria Group, Inc.) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
NPM Adjustment Items									$ 90,000,000	$ 664,000,000
Litigation expense									44,000,000	22,000,000	5,000,000
Asset impairment, exit, and implementation costs					10,000,000	0	1,000,000	1,000,000
Asset impairment, exit, integration and acquisition-related costs	5,000,000	15,000,000	(1,000,000)	2,000,000
Loss on early extinguishment of debt	44,000,000	0	0	0	1,084,000,000	0	0	0	44,000,000	1,084,000,000	874,000,000
SABMiller special items	35,000,000	(42,000,000)	23,000,000	9,000,000	6,000,000	14,000,000	(4,000,000)	15,000,000
Pre-tax charges (gain) included in net earning	89,000,000	(23,000,000)	27,000,000	(49,000,000)	1,100,000,000	(115,000,000)	(39,000,000)	(461,000,000)
NPM Adjustment
Condensed Financial Statements, Captions [Line Items]
NPM Adjustment Items	0	0	26,000,000	64,000,000	0	145,000,000	36,000,000	483,000,000
Tobacco and Health Judgment [Member]
Condensed Financial Statements, Captions [Line Items]
Litigation expense	$ 5,000,000	$ 4,000,000	$ 31,000,000	$ 4,000,000	$ 0	$ 16,000,000	$ 0	$ 6,000,000