Quarterly Financial Data (Unaudited) (EPS attributable to Altria Group, Inc.) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Data [Abstract]
Net revenues	$ 6,252	$ 6,905	$ 6,521	$ 6,066	$ 6,318	$ 6,699	$ 6,613	$ 5,804	$ 25,744	$ 25,434	$ 24,522
Gross profit	2,828	3,150	2,957	2,656	2,722	3,046	2,871	2,475	11,591	11,114	10,160
Net earnings	10,278	1,094	1,654	1,218	1,248	1,528	1,449	1,018	14,244	5,243	5,070
Net earnings attributable to Altria Group, Inc.	$ 10,276	$ 1,093	$ 1,653	$ 1,217	$ 1,247	$ 1,528	$ 1,448	$ 1,018	$ 14,239	$ 5,241	$ 5,070
Basic and diluted EPS attributable to Altria Group, Inc. (usd per share)	$ 5.27	$ 0.56	$ 0.84	$ 0.62	$ 0.64	$ 0.78	$ 0.74	$ 0.52	$ 7.28	$ 2.67	$ 2.56