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Goodwill - Summary of Weighted Average Cost of Capital (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Colombia [member]
Disclosure of reconciliation of changes in goodwill [line items]
Weighted average cost of capital	10.00%	8.00%
Rest of Middle Americas [member]
Disclosure of reconciliation of changes in goodwill [line items]
Weighted average cost of capital	13.00%	9.00%
South Africa [member]
Disclosure of reconciliation of changes in goodwill [line items]
Weighted average cost of capital	11.00%	9.00%
Rest of Africa [member]
Disclosure of reconciliation of changes in goodwill [line items]
Weighted average cost of capital	14.00%	15.00%
Rest Of Asia Pacific [Member]
Disclosure of reconciliation of changes in goodwill [line items]
Weighted average cost of capital	7.00%	7.00%

X

- Definition

Weighted average cost of capital of significant unobservable inputs assets.

+ References

No definition available.

+ Details

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Namespace Prefix:	bud_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
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Balance Type:	na
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- Details

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

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=bud_MiddleAmericasCountriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=country_ZA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=bud_OtherAfricanCountriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=bud_AsiaPacificCountresMember
Namespace Prefix:
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Balance Type:
Period Type: