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Long-Term Debt (Fair Value) (Details) (Level 2 [Member], USD $)
In Billions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Estimate of Fair Value Measurement [Member]
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Aggregate value of Altria's total debt $ 17.0us-gaap_DebtInstrumentFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 $ 16.1us-gaap_DebtInstrumentFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
Carrying Value [Member]
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Aggregate value of Altria's total debt $ 14.7us-gaap_DebtInstrumentFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember		 $ 14.5us-gaap_DebtInstrumentFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember