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Contingencies Contingencies (State Class Certifications) (Details) (USD $)
 12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Feb. 28, 2014
Loss Contingencies [Line Items]      
Litigation Settlement, Amount $ 90,000,000us-gaap_LitigationSettlementAmount $ 664,000,000us-gaap_LitigationSettlementAmount  
Brown Case [Member] | Lights [Member]      
Loss Contingencies [Line Items]      
Litigation Settlement, Amount     764,553us-gaap_LitigationSettlementAmount
/ dei_LegalEntityAxis
= mo_BrownCaseMember
/ us-gaap_LitigationCaseAxis
= mo_LightsMember
Maximum [Member] | Aspinall [Member] | Lights/Ultra Lights Class Actions [Member]      
Loss Contingencies [Line Items]      
Loss Contingency, Damages Sought, Value     $ 25us-gaap_LossContingencyDamagesSoughtValue
/ dei_LegalEntityAxis
= mo_AspinallMember
/ us-gaap_LitigationCaseAxis
= mo_LightsUltraLightsClassActionsMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember