Earnings (Losses) per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net earnings (losses) attributable to Altria	$ 224	$ (2,722)	$ 3,074	$ 851
Less: Distributed and undistributed earnings attributable to share-based awards	(3)	(2)	(9)	(8)
Earnings (losses) for basic EPS	221	(2,724)	3,065	843
Earnings (losses) for diluted EPS	$ 221	$ (2,724)	$ 3,065	$ 843
Weighted-average shares for basic EPS (in shares)	1,799,000	1,842,000	1,808,000	1,849,000
Weighted-average shares for diluted EPS (in shares)	1,799,000	1,842,000	1,808,000	1,849,000