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Contingencies (Health Care Cost Recovery Litigation Narrative) (Details) (State Settlements Agreements [Member], Health Care Cost Recovery Actions [Member], USD $) | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
State Settlements Agreements [Member] | Health Care Cost Recovery Actions [Member] |  |
Loss Contingencies [Line Items] |  |
Loss contingency, period of occurrence | November 1998 |
State Settlement Agreements annual payments | $ 9,400,000,000 mo_StateSettlementAgreementsAnnualPayments / dei_LegalEntityAxis = mo_StateSettlementsAgreementsMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = mo_HealthCareCostRecoveryActionsMember |
State Settlement Agreements attorney fees annual cap | 500,000,000 mo_StateSettlementAgreementsAttorneyFeesAnnualCap / dei_LegalEntityAxis = mo_StateSettlementsAgreementsMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = mo_HealthCareCostRecoveryActionsMember |
Aggregate Amount Recorded In Cost Of Sales Related To State Settlement Agreements And Federal Equitable Tobacco Reform Act | $ 1,100,000,000 mo_AggregateAmountRecordedInCostOfSalesRelatedToStateSettlementAgreementsAndFederalEquitableTobaccoReformAct / dei_LegalEntityAxis = mo_StateSettlementsAgreementsMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = mo_HealthCareCostRecoveryActionsMember | $ 1,100,000,000 mo_AggregateAmountRecordedInCostOfSalesRelatedToStateSettlementAgreementsAndFederalEquitableTobaccoReformAct / dei_LegalEntityAxis = mo_StateSettlementsAgreementsMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = mo_HealthCareCostRecoveryActionsMember

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- Definition Aggregate Amount Recorded in Cost Of Sales Related To State Settlement Agreements And FETRA. + References No definition available. + Details
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Period Type: | duration

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- Definition Settlement Agreement Annual Payments before Adjustments. + References No definition available. + Details
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Namespace Prefix: | mo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition State Settlement Agreements Attorney Fees Annual Cap + References No definition available. + Details
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Balance Type: | credit
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- Details
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Namespace Prefix: | us-gaap_
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- Definition States when the existing condition, situation, or set of circumstances involving uncertainty occurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
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