Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net earnings attributable to Altria	$ 1,943	$ 1,866	$ 5,713	$ 5,256
Less: Distributed and undistributed earnings attributable to share-based awards	(2)	(2)	(7)	(7)
Earnings for basic and diluted EPS	$ 1,941	$ 1,864	$ 5,706	$ 5,249
Weighted-average shares for basic and diluted EPS (shares)	1,883	1,915	1,891	1,927