Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net earnings attributable to Altria	$ 1,876	$ 1,989	$ 3,770	$ 3,390
Less: Distributed and undistributed earnings attributable to share-based awards	(3)	(3)	(5)	(5)
Earnings for basic and diluted EPS	$ 1,873	$ 1,986	$ 3,765	$ 3,385
Weighted-average shares for basic and diluted EPS (shares)	1,891	1,928	1,895	1,933