Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net earnings attributable to Altria	$ 1,552	$ 1,120
Less: Distributed and undistributed earnings attributable to share-based awards	(2)	(2)
Earnings for basic and diluted EPS	$ 1,550	$ 1,118
Weighted-average shares for basic and diluted EPS (in shares)	1,858	1,874

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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