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Benefit Plans (Fair Values of Pension Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	$ 7,297us-gaap_DefinedBenefitPlanFairValueOfPlanAssets	$ 7,077us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	1,693us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member	1,823us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	5,588us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member	5,239us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	16us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member	15us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member
Common/Collective Trusts [Member] | U.S. large cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	1,870us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember	1,971us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember
Common/Collective Trusts [Member] | U.S. large cap [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember
Common/Collective Trusts [Member] | U.S. large cap [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	1,870us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember	1,971us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember
Common/Collective Trusts [Member] | U.S. large cap [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USLargeCapMember
Common/Collective Trusts [Member] | U.S. small cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	442us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember	546us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember
Common/Collective Trusts [Member] | U.S. small cap [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember
Common/Collective Trusts [Member] | U.S. small cap [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	442us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember	546us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember
Common/Collective Trusts [Member] | U.S. small cap [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USSmallCapMember
Common/Collective Trusts [Member] | International developed markets [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	79us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember	159us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember
Common/Collective Trusts [Member] | International developed markets [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember
Common/Collective Trusts [Member] | International developed markets [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	79us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember	159us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember
Common/Collective Trusts [Member] | International developed markets [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_CommonCollectiveTrustsMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalDevelopedMarketsMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. government and agencies [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	296us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember	226us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. government and agencies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. government and agencies [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	296us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember	226us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. government and agencies [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_USTreasuryAndGovernmentMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. municipal bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	124us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember	127us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. municipal bonds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. municipal bonds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	124us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember	127us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | U.S. municipal bonds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_MunicipalBondsMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | Foreign government and agencies [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	281us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember	275us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | Foreign government and agencies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | Foreign government and agencies [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	281us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember	275us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember
U.S. And Foreign Government Securities Or Their Agencies [Member] | Foreign government and agencies [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_UsTreasuryAndForeignGovernmentSecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember
Common Stock [Member] | International equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	1,001us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember	1,051us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember
Common Stock [Member] | International equities [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	1,000us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember	1,050us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember
Common Stock [Member] | International equities [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember
Common Stock [Member] | International equities [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember	1us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_InternationalEquitiesMember
Common Stock [Member] | U.S. equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	556us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember	506us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember
Common Stock [Member] | U.S. equities [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	556us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember	506us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember
Common Stock [Member] | U.S. equities [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember
Common Stock [Member] | U.S. equities [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember	0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = us-gaap_EquitySecuritiesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentSecondaryCategorizationAxis = mo_USEquitiesMember
Registered Investment Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	176us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_RegisteredInvestmentCompanyMember	296us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_RegisteredInvestmentCompanyMember
Registered Investment Companies [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Investments at fair value	63us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_RegisteredInvestmentCompanyMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member	159us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis = mo_RegisteredInvestmentCompanyMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member
Registered Investment Companies [Member] | Level 2 [Member]
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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930

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