Other Comprehensive Earnings/Losses (Changes in Each Component of Accumulated Other Comprehensive Losses) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	$ (1,378)		$ (2,040)		$ (1,887)
Other comprehensive (losses) earnings before reclassifications	(2,294)		817		(512)
Deferred income taxes	858		(350)		209
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	(1,436)		467		(303)
Amounts reclassified to net earnings	213		317		244
Deferred income taxes	(81)		(122)		(94)
Amounts reclassified to net earnings, net of deferred income taxes	132		195		150
Other comprehensive (losses) earnings, net of deferred income taxes	(1,304)		662		(153)
Balances at end of year	(2,682)		(1,378)		(2,040)
SABMiller Plc [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	(105)		372		173
Other comprehensive (losses) earnings before reclassifications	(881)		(740)		303
Deferred income taxes	308		259		(106)
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	(573)		(481)		197
Amounts reclassified to net earnings	59		6		3
Deferred income taxes	(21)		(2)		(1)
Amounts reclassified to net earnings, net of deferred income taxes	38		4		2
Other comprehensive (losses) earnings, net of deferred income taxes	(535)	[1]	(477)	[1]	199	[1]
Balances at end of year	(640)		(105)		372
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	0		2		2
Other comprehensive (losses) earnings before reclassifications	(2)		(2)		0
Deferred income taxes	0		0		0
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	(2)		(2)		0
Amounts reclassified to net earnings	0		0		0
Deferred income taxes	0		0		0
Amounts reclassified to net earnings, net of deferred income taxes	0		0		0
Other comprehensive (losses) earnings, net of deferred income taxes	(2)		(2)		0
Balances at end of year	(2)		0		2
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income [Roll Forward]
Balances at beginning of year	(1,273)		(2,414)		(2,062)
Other comprehensive (losses) earnings before reclassifications	(1,411)		1,559		(815)
Deferred income taxes	550		(609)		315
Other comprehensive (losses) earnings before reclassifications, net of deferred income taxes	(861)		950		(500)
Amounts reclassified to net earnings	154		311		241
Deferred income taxes	(60)		(120)		(93)
Amounts reclassified to net earnings, net of deferred income taxes	94		191		148
Other comprehensive (losses) earnings, net of deferred income taxes	(767)		1,141		(352)
Balances at end of year	$ (2,040)		$ (1,273)		$ (2,414)

[1] For the years ended December 31, 2014, 2013 and 2012, Altria Group, Inc.’s proportionate share of SABMiller’s other comprehensive earnings/losses consisted primarily of currency translation adjustments.