Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheets) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Assets [Abstract]
Cash and cash equivalents	$ 1,907		$ 3,321	$ 2,241		$ 3,175
Receivables	137		124
Inventories:
Leaf tobacco	863		991
Other raw materials	187		200
Work in process	393		429
Finished product	511		420
Inventory, net	1,954		2,040
Due from Altria Group, Inc. and subsidiaries	0		0
Deferred income taxes	1,143		1,143
Other current assets	370		250
Total current assets	5,511		6,878
Property, plant and equipment, at cost	4,866		4,755
Less accumulated depreciation	2,850		2,772
Property, plant and equipment, net	2,016		1,983
Goodwill	5,285		5,285
Other intangible assets, net	12,033		12,049
Investment in SABMiller	5,442		6,183
Investment in consolidated subsidiaries	0		0
Finance assets, net	1,295		1,614
Due from Altria Group, Inc. and subsidiaries	0		0
Other assets	417		483
TOTAL ASSETS	31,999		34,475
Liabilities [Abstract]
Current portion of long-term debt	3		1,000
Accounts payable	307		416
Accrued liabilities:
Marketing	766		618
Employment costs	146		186
Settlement charges	3,216		3,500
Other	1,019		925
Dividends payable	1,110		1,028
Due to Altria Group, Inc. and subsidiaries	0		0
Total current liabilities	6,567		7,673
Long-term debt	12,918		13,693
Deferred income taxes	5,831		6,088
Accrued pension costs	903		1,012
Accrued postretirement health care costs	2,444		2,461
Due to Altria Group, Inc. and subsidiaries	0		0
Other liabilities	420		503
Total liabilities	$ 29,083		$ 31,430
Contingencies
Redeemable noncontrolling interest	$ 35		$ 35
Stockholders' Equity
Common stock	935		935
Additional paid-in capital	5,800		5,735
Earnings reinvested in the business	27,118		26,277
Accumulated other comprehensive losses	(3,157)	$ (2,878)	(2,682)	(1,454)	$ (1,229)	(1,378)
Cost of repurchased stock	(27,809)		(27,251)
Total stockholders' equity attributable to Altria Group, Inc.	2,887		3,014
Noncontrolling interests	(6)		(4)
Total stockholders' equity	2,881		3,010			4,118
Total Liabilities and Stockholders' Equity	31,999		34,475
Reportable Legal Entities [Member] | Altria Group, Inc. [Member]
Assets [Abstract]
Cash and cash equivalents	1,858		3,281	2,203		3,114
Receivables	0		0
Inventories:
Leaf tobacco	0		0
Other raw materials	0		0
Work in process	0		0
Finished product	0		0
Inventory, net	0		0
Due from Altria Group, Inc. and subsidiaries	0		568
Deferred income taxes	0		0
Other current assets	196		54
Total current assets	2,054		3,903
Property, plant and equipment, at cost	0		0
Less accumulated depreciation	0		0
Property, plant and equipment, net	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investment in SABMiller	5,442		6,183
Investment in consolidated subsidiaries	11,926		10,665
Finance assets, net	0		0
Due from Altria Group, Inc. and subsidiaries	4,790		4,790
Other assets	98		148
TOTAL ASSETS	24,310		25,689
Liabilities [Abstract]
Current portion of long-term debt	0		1,000
Accounts payable	0		18
Accrued liabilities:
Marketing	0		0
Employment costs	15		18
Settlement charges	0		0
Other	259		321
Dividends payable	1,110		1,028
Due to Altria Group, Inc. and subsidiaries	5,216		4,414
Total current liabilities	6,600		6,799
Long-term debt	12,902		13,693
Deferred income taxes	1,552		1,754
Accrued pension costs	221		233
Accrued postretirement health care costs	0		0
Due to Altria Group, Inc. and subsidiaries	0		0
Other liabilities	148		196
Total liabilities	$ 21,423		$ 22,675
Contingencies
Redeemable noncontrolling interest	$ 0		$ 0
Stockholders' Equity
Common stock	935		935
Additional paid-in capital	5,800		5,735
Earnings reinvested in the business	27,118		26,277
Accumulated other comprehensive losses	(3,157)		(2,682)
Cost of repurchased stock	(27,809)		(27,251)
Total stockholders' equity attributable to Altria Group, Inc.	2,887		3,014
Noncontrolling interests	0		0
Total stockholders' equity	2,887		3,014
Total Liabilities and Stockholders' Equity	24,310		25,689
Reportable Legal Entities [Member] | PM USA [Member]
Assets [Abstract]
Cash and cash equivalents	2		3	0		1
Receivables	9		6
Inventories:
Leaf tobacco	509		616
Other raw materials	124		132
Work in process	9		4
Finished product	141		134
Inventory, net	783		886
Due from Altria Group, Inc. and subsidiaries	4,020		3,535
Deferred income taxes	1,200		1,190
Other current assets	275		101
Total current assets	6,289		5,721
Property, plant and equipment, at cost	3,110		3,112
Less accumulated depreciation	2,134		2,091
Property, plant and equipment, net	976		1,021
Goodwill	0		0
Other intangible assets, net	2		2
Investment in SABMiller	0		0
Investment in consolidated subsidiaries	2,773		2,775
Finance assets, net	0		0
Due from Altria Group, Inc. and subsidiaries	0		0
Other assets	536		541
TOTAL ASSETS	10,576		10,060
Liabilities [Abstract]
Current portion of long-term debt	0		0
Accounts payable	97		118
Accrued liabilities:
Marketing	668		505
Employment costs	10		10
Settlement charges	3,209		3,495
Other	714		400
Dividends payable	0		0
Due to Altria Group, Inc. and subsidiaries	396		402
Total current liabilities	5,094		4,930
Long-term debt	0		0
Deferred income taxes	0		0
Accrued pension costs	0		0
Accrued postretirement health care costs	1,585		1,608
Due to Altria Group, Inc. and subsidiaries	0		0
Other liabilities	122		151
Total liabilities	$ 6,801		$ 6,689
Contingencies
Redeemable noncontrolling interest	$ 0		$ 0
Stockholders' Equity
Common stock	0		0
Additional paid-in capital	3,310		3,310
Earnings reinvested in the business	795		402
Accumulated other comprehensive losses	(330)		(341)
Cost of repurchased stock	0		0
Total stockholders' equity attributable to Altria Group, Inc.	3,775		3,371
Noncontrolling interests	0		0
Total stockholders' equity	3,775		3,371
Total Liabilities and Stockholders' Equity	10,576		10,060
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Assets [Abstract]
Cash and cash equivalents	47		37	38		60
Receivables	128		118
Inventories:
Leaf tobacco	354		375
Other raw materials	63		68
Work in process	384		425
Finished product	370		286
Inventory, net	1,171		1,154
Due from Altria Group, Inc. and subsidiaries	1,592		1,279
Deferred income taxes	7		9
Other current assets	39		122
Total current assets	2,984		2,719
Property, plant and equipment, at cost	1,756		1,643
Less accumulated depreciation	716		681
Property, plant and equipment, net	1,040		962
Goodwill	5,285		5,285
Other intangible assets, net	12,031		12,047
Investment in SABMiller	0		0
Investment in consolidated subsidiaries	0		0
Finance assets, net	1,295		1,614
Due from Altria Group, Inc. and subsidiaries	0		0
Other assets	101		121
TOTAL ASSETS	22,736		22,748
Liabilities [Abstract]
Current portion of long-term debt	3		0
Accounts payable	210		280
Accrued liabilities:
Marketing	98		113
Employment costs	121		158
Settlement charges	7		5
Other	250		287
Dividends payable	0		0
Due to Altria Group, Inc. and subsidiaries	0		566
Total current liabilities	689		1,409
Long-term debt	16		0
Deferred income taxes	4,597		4,661
Accrued pension costs	682		779
Accrued postretirement health care costs	859		853
Due to Altria Group, Inc. and subsidiaries	4,790		4,790
Other liabilities	150		156
Total liabilities	$ 11,783		$ 12,648
Contingencies
Redeemable noncontrolling interest	$ 35		$ 35
Stockholders' Equity
Common stock	9		9
Additional paid-in capital	11,444		10,688
Earnings reinvested in the business	992		995
Accumulated other comprehensive losses	(1,521)		(1,623)
Cost of repurchased stock	0		0
Total stockholders' equity attributable to Altria Group, Inc.	10,924		10,069
Noncontrolling interests	(6)		(4)
Total stockholders' equity	10,918		10,065
Total Liabilities and Stockholders' Equity	22,736		22,748
Consolidation, Eliminations [Member]
Assets [Abstract]
Cash and cash equivalents	0		0	$ 0		$ 0
Receivables	0		0
Inventories:
Leaf tobacco	0		0
Other raw materials	0		0
Work in process	0		0
Finished product	0		0
Inventory, net	0		0
Due from Altria Group, Inc. and subsidiaries	(5,612)		(5,382)
Deferred income taxes	(64)		(56)
Other current assets	(140)		(27)
Total current assets	(5,816)		(5,465)
Property, plant and equipment, at cost	0		0
Less accumulated depreciation	0		0
Property, plant and equipment, net	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investment in SABMiller	0		0
Investment in consolidated subsidiaries	(14,699)		(13,440)
Finance assets, net	0		0
Due from Altria Group, Inc. and subsidiaries	(4,790)		(4,790)
Other assets	(318)		(327)
TOTAL ASSETS	(25,623)		(24,022)
Liabilities [Abstract]
Current portion of long-term debt	0		0
Accounts payable	0		0
Accrued liabilities:
Marketing	0		0
Employment costs	0		0
Settlement charges	0		0
Other	(204)		(83)
Dividends payable	0		0
Due to Altria Group, Inc. and subsidiaries	(5,612)		(5,382)
Total current liabilities	(5,816)		(5,465)
Long-term debt	0		0
Deferred income taxes	(318)		(327)
Accrued pension costs	0		0
Accrued postretirement health care costs	0		0
Due to Altria Group, Inc. and subsidiaries	(4,790)		(4,790)
Other liabilities	0		0
Total liabilities	$ (10,924)		$ (10,582)
Contingencies
Redeemable noncontrolling interest	$ 0		$ 0
Stockholders' Equity
Common stock	(9)		(9)
Additional paid-in capital	(14,754)		(13,998)
Earnings reinvested in the business	(1,787)		(1,397)
Accumulated other comprehensive losses	1,851		1,964
Cost of repurchased stock	0		0
Total stockholders' equity attributable to Altria Group, Inc.	(14,699)		(13,440)
Noncontrolling interests	0		0
Total stockholders' equity	(14,699)		(13,440)
Total Liabilities and Stockholders' Equity	$ (25,623)		$ (24,022)