XML 61 R74.htm IDEA: XBRL DOCUMENT
v3.20.1

Contingencies (UST Litigations Narrative) (Details) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2019 shareholder | Apr. 27, 2020 claim
Loss Contingencies [Line Items] |  |
Loss contingency, number of shareholders filing class action lawsuits | shareholder | 2 |
Pending Individual Lawsuits [Member] | Subsequent Event [Member] | UST Litigation [Member] |  |
Loss Contingencies [Line Items] |  |
Claims filed, number | claim |  | 1

X
- Definition Loss Contingency, Number Of Shareholders Filing Class Action Lawsuits + References No definition available. + Details
Name: | mo_LossContingencyNumberOfShareholdersFilingClassActionLawsuits
Namespace Prefix: | mo_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LitigationStatusAxis=mo_PendingIndividualLawsuitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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