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Contingencies (UST Litigations Narrative) (Details) | 1 Months Ended
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Jul. 31, 2016 case
California [Member] | UST Litigation [Member] |
Loss Contingencies [Line Items] |
Claims filed, number | 1

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- Definition Loss Contingency, Claims Filed, Number + References No definition available. + Details
Name: | mo_LossContingencyClaimsFiledNumber
Namespace Prefix: | mo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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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_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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