Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net earnings attributable to Altria Group, Inc.	$ 1,866	$ 1,093	$ 5,256	$ 3,963
Less: Distributed and undistributed earnings attributable to unvested restricted shares and restricted stock units	(2)	(1)	(7)	(6)
Earnings for basic and diluted EPS	$ 1,864	$ 1,092	$ 5,249	$ 3,957
Weighted-average shares for basic and diluted EPS	1,915	1,952	1,927	1,954