Earnings per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net earnings attributable to Altria	$ 1,959	$ 1,424
Less: Distributed and undistributed earnings attributable to share-based awards	(4)	(3)
Earnings (losses) for basic EPS	1,955	1,421
Earnings (losses) for diluted EPS	$ 1,955	$ 1,421
Weighted-average shares for basic EPS (in shares)	1,818,000	1,857,000
Weighted-average shares for diluted EPS (in shares)	1,818,000	1,857,000