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Contingencies (Security For Judgments Narrative) (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2014
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Loss Contingency [Abstract] |
Security posted for appeal of judgments | $ 32

X
- Definition Various forms of security posted to obtain stays of judgments for cases pending appeal + References No definition available. + Details
Name: | mo_SecurityPostedToObtainStaysOfJudgmentsPendingAppeal
Namespace Prefix: | mo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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