Noncontrolling Interest, Remaining Interest Purchased By Parent

No definition available.

Name:	mo_NoncontrollingInterestRemainingInterestPurchasedByParent
Namespace Prefix:	mo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of Leveraged Leases Remaining

+ References

No definition available.

+ Details

Name:	mo_NumberOfLeveragedLeasesRemaining
Namespace Prefix:	mo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Ownership Percentage In Consolidated Subsidiary

+ References

No definition available.

+ Details

Name:	mo_OwnershipPercentageInConsolidatedSubsidiary
Namespace Prefix:	mo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow associated with the purchase of noncontrolling interest during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the cash inflow during the period from the sale of a component of the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Details

Name:	dei_LegalEntityAxis=mo_PhilipMorrisUSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=mo_JTIUHMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=mo_HelixInnovationsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Background and Basis of Presentation (Background Narrative) (Details) $ in Millions	1 Months Ended	5 Months Ended	12 Months Ended
	Oct. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Dec. 31, 2022 USD ($) lease	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items]
Number of leveraged leases remaining \| lease			0
Proceeds from the Ste. Michelle Transaction, net of cash transferred	$ 1,200		$ 0	$ 1,176	$ 0
Payments to acquire additional interest in subsidiaries		$ 250
Horizon {Member] \| PM USA [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in consolidated subsidiary			75.00%
Horizon {Member] \| JTIUH [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners			25.00%
Helix Innovations LLC [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest, remaining interest purchased by parent		20.00%