Earnings Per Share (Earnings Per Share) (Details) (USD $) In Millions, unless otherwise specified	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
Earnings Per Share [Abstract]
Net earnings attributable to Altria Group, Inc.	$ 1,236	$ 1,397	$ 1,262	$ 1,175	$ 488	$ 1,396	$ 1,266	$ 1,385	$ 5,070	$ 4,535	$ 4,180
Less: Distributed and undistributed earnings attributable to unvested restricted and deferred shares									(12)	(12)	(13)
Earnings for basic and diluted EPS									$ 5,058	$ 4,523	$ 4,167
Weighted-average shares for basic and diluted EPS									1,978	1,999	2,024