Earnings (Losses) per Share (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net earnings (losses) attributable to Altria	$ 2,475	$ 4,467	$ (1,293)
Less: Distributed and undistributed earnings attributable to share-based awards	(11)	(8)	(7)
Earnings (losses) for EPS, basic	2,464	4,459	(1,300)
Earnings (losses) for EPS, diluted	$ 2,464	$ 4,459	$ (1,300)
Weighted-average shares for basic EPS (in shares)	1,845	1,858	1,869
Plus: contingently issuable PSUs (in shares)	0	1	0
Weighted-average shares for diluted EPS (in shares)	1,845	1,859	1,869