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Contingencies (Florida Bond Statute) (Details) | Jun. 30, 2009 USD ($)
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Florida [Member] | Engle Progeny Cases, State [Member] |
Loss Contingencies [Line Items] |
Maximum bond for all defendants | $ 200,000,000

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- Definition Maximum Bond For All Defendants + References No definition available. + Details
Name: | mo_MaximumBondForAllDefendants
Namespace Prefix: | mo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_StatementGeographicalAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_LitigationCaseAxis=mo_EngleProgenyCasesStateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |