Earnings per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net earnings attributable to Altria	$ 891	$ 2,149	$ 2,850	$ 3,573
Less: Distributed and undistributed earnings attributable to share-based awards	(2)	(3)	(6)	(6)
Earnings (losses) for basic EPS	889	2,146	2,844	3,567
Earnings (losses) for diluted EPS	$ 889	$ 2,146	$ 2,844	$ 3,567
Weighted-average shares for basic EPS (in shares)	1,809,000	1,849,000	1,813,000	1,853,000
Weighted-average shares for diluted EPS (in shares)	1,809,000	1,849,000	1,813,000	1,853,000