Earnings Per Share (Earnings Per Share) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net earnings attributable to Altria Group, Inc.	$ 1,247	$ 1,528	$ 1,448	$ 1,018	$ 1,236	$ 1,397	$ 1,262	$ 1,175	$ 5,241	$ 5,070	$ 4,535
Less: Distributed and undistributed earnings attributable to unvested restricted shares and restricted stock units									(10)	(12)	(12)
Earnings for basic and diluted EPS									$ 5,231	$ 5,058	$ 4,523
Weighted-average shares for basic and diluted EPS									1,961	1,978	1,999