Loss Contingency, Number Of States Not In Compliance With Escrow Statues

No definition available.

Name:	mo_LossContingencyNumberOfStatesNotInComplianceWithEscrowStatues
Namespace Prefix:	mo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Number Of States Not Settled

+ References

No definition available.

+ Details

Name:	mo_LossContingencyNumberOfStatesNotSettled
Namespace Prefix:	mo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Number Of States Not Settled, Arbitration Period

+ References

No definition available.

+ Details

Name:	mo_LossContingencyNumberOfStatesNotSettledArbitrationPeriod
Namespace Prefix:	mo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Number Of States With Concluded Hearings

+ References

No definition available.

+ Details

Name:	mo_LossContingencyNumberOfStatesWithConcludedHearings
Namespace Prefix:	mo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Number Of States With Settled Litigation, Settlement One

+ References

No definition available.

+ Details

Name:	mo_LossContingencyNumberOfStatesWithSettledLitigationSettlementOne
Namespace Prefix:	mo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Reduction To Cost Of Sales

+ References

No definition available.

+ Details

Name:	mo_LossContingencyReductionToCostOfSales
Namespace Prefix:	mo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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

- Definition

Interest expense (income) directly attributable to an award in settlement of litigation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(6))
-SubTopic 10
-Topic 220
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

Name:	us-gaap_LitigationSettlementInterest
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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 720
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483359/720-20-50-1

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 27
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482395/460-10-55-27

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-3

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

+ Details

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

- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

+ Details

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

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

+ Details

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

- Details

Name:	srt_LitigationCaseAxis=mo_HealthCareCostRecoveryActionsMember
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:	srt_LitigationCaseAxis=mo_HealthCareCostRecoveryActions2004NPMAdjustmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_LitigationCaseAxis=mo_HealthCareCostRecoveryActions20052007NPMAdjustmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	mo_ArbitrationPeriodAxis=mo_PeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	mo_ArbitrationPeriodAxis=mo_PeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=stpr_NY
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LitigationStatusAxis=us-gaap_SettledLitigationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=stpr_MA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Contingencies (NPM Adjustment Disputes) (Details) $ in Millions		1 Months Ended		3 Months Ended					12 Months Ended	135 Months Ended
	Apr. 24, 2025	Dec. 31, 2024 state	Apr. 30, 2023 USD ($)	Mar. 31, 2025 USD ($) state	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2025 USD ($)
Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Litigation settlement				$ 700	$ 900
PM USA [Member] \| Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states with settled litigation including New York, subsequent expansion \| state		39
Loss contingency, credits to offset payments										$ 1,370
PM USA [Member] \| Health Care Cost Recovery Actions, 2004 NPM Adjustment [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, credits to offset payments			$ 52
Loss contingency, number of states with concluded hearings \| state				9
Loss contingency, number of states not in compliance with escrow statues \| state				3
Loss contingency, number of states not settled \| state				8
Loss contingency, damages sought, value							$ 8	$ 44
PM USA [Member] \| Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states not settled \| state				6
Loss contingency, reduction to cost of sales						$ 14
Litigation settlement interest expense (income)						$ 21
PM USA [Member] \| Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] \| Pending Litigation [Member] \| Period One [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states not settled \| state				5
Loss contingency, number of states not settled, arbitration period				3 years
PM USA [Member] \| Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] \| Pending Litigation [Member] \| Period One [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states not settled, arbitration period	3 years
PM USA [Member] \| Health Care Cost Recovery Actions, 2005-2007 NPM Adjustment [Member] \| Pending Litigation [Member] \| Period Two [Member]
Loss Contingencies [Line Items]
Loss contingency, number of states not settled \| state				1
Loss contingency, number of states not settled, arbitration period				1 year
New York [Member] \| PM USA [Member] \| Health Care Cost Recovery Actions [Member] \| Settled Litigation [Member]
Loss Contingencies [Line Items]
Litigation settlement									$ 572
Massachusetts [Member] \| PM USA [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision				$ 28
Massachusetts [Member] \| PM USA [Member] \| Health Care Cost Recovery Actions [Member]
Loss Contingencies [Line Items]
Loss contingency, credits to offset payments				$ 28