Ownership Percentage In Consolidated Subsidiary

No definition available.

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

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126966325&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI https://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- 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 acquisition of business during the period. The cash portion only of the acquisition price.

+ References

+ Details

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

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Balance Type:
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- Details

Name:	dei_LegalEntityAxis=mo_PhilipMorrisUSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	dei_LegalEntityAxis=mo_JTIUHMember
Namespace Prefix:
Data Type:	na
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- Details

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- Details

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- Details

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Data Type:	na
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- Details

Name:	us-gaap_ShareRepurchaseProgramAxis=mo_January2023ShareRepurchaseProgramMember
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Background and Basis of Presentation (Narrative) (Details) - USD ($)	9 Months Ended
	Dec. 31, 2023	Mar. 31, 2023	Jan. 31, 2023	Oct. 31, 2021	Jan. 31, 2021
Horizon [Member] \| PM USA [Member]
Equity, Class of Treasury Stock [Line Items]
Ownership percentage in consolidated subsidiary		75.00%
Horizon [Member] \| JTIUH [Member]
Equity, Class of Treasury Stock [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners		25.00%
NJOY Holdings, Inc. [Member] \| Forecast [Member]
Equity, Class of Treasury Stock [Line Items]
Payments to acquire businesses, gross	$ 2,750,000,000
Business combination, contingent consideration, liability	$ 500,000,000
January 2021 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Planned share repurchase program				$ 3,500,000,000	$ 2,000,000,000
January 2023 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Planned share repurchase program			$ 1,000,000,000