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Acquisition of Green Smoke Narrative (Details) (Business Acquisition, Green Smoke [Member], USD $) In Millions, unless otherwise specified | 0 Months Ended | 12 Months Ended
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Apr. 02, 2014 | Dec. 31, 2014
Business Acquisition, Green Smoke [Member] |  |
Business Acquisition [Line Items] |  |
Business Combination, Integration and Acquisition Related Costs |  | $ 28 mo_BusinessCombinationIntegrationandAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = mo_BusinessAcquisitionGreenSmokeMember
Consideration Transferred (up to $130 million) | $ 130 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = mo_BusinessAcquisitionGreenSmokeMember |

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- Definition Business Combination, Integration and Acquisition Related Costs + References No definition available. + Details
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- Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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