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Share-Based Payments - Summary of Number of Outstanding Deferred and Restricted stock Units (Detail) - Restricted Stock Units And Performance Stock Units [Member] Unit_pure in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
AB inBev [member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
RSUs and PSUs outstanding at 1 January | 28.7 | 20.9 | 19.1
RSUs and PSUs issued during the year | 5.9 | 10.1 | 3.9
RSUs and PSUs vested during the year | (4.3) | (0.5) | (1.1)
RSUs and PSUs forfeited during the year | (1.3) | (1.8) | (1.1)
RSUs and PSUs outstanding at the end of December | 29.0 | 28.7 | 20.9
Brazil [Member] | Ambev [member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
RSUs and PSUs outstanding at 1 January | 109.8 | 63.8 | 49.6
RSUs and PSUs issued during the year | 33.7 | 49.3 | 20.7
RSUs and PSUs vested during the year | (18.3) | (0.2) | (5.0)
RSUs and PSUs forfeited during the year | (5.2) | (3.1) | (1.5)
RSUs and PSUs outstanding at the end of December | 120.0 | 109.8 | 63.8

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- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_b&doctype=Standard -URIDate 2023-03-23 + Details
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