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Contingencies Contingencies (State Class Certifications) (Details) (Brown Case [Member], USD $) | 1 Months Ended
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Oct. 31, 2013
Brown Case [Member] |
Loss Contingencies [Line Items] |
Loss contingency, attorney fees sought | $ 766,321

X
- Definition Loss Contingency, Damages Awarded, Including Interest, Value + References No definition available. + Details
Name: | mo_LossContingencyDamagesAwardedIncludingInterestValue
Namespace Prefix: | mo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration