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Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net earnings attributable to Altria Group, Inc.	$ 1,894	$ 1,401
Less: Distributed and undistributed earnings attributable to share-based awards	(2)	(2)
Earnings for basic and diluted EPS	$ 1,892	$ 1,399
Weighted-average shares for basic and diluted EPS	1,899	1,939

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Net Income (Loss) Available to Common Stockholders, Basic and Diluted

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Participating Securities, Distributed and Undistributed Earnings (Loss), Basic and Diluted

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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