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Changes in Equity and Earnings Per Share - Summary of EPS (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Earnings per share [abstract] |  |  |  |  |
Profit attributable to equity holders of AB InBev | $ 5,341 | $ 5,969 |  | $ 4,670 |
Weighted average number of ordinary and restricted shares | 2,016 | 2,013 |  | 2,007 |
Basic EPS | $ 2.65 | $ 2.97 | [1] | $ 2.33 | [1]
Underlying profit | $ 6,158 | $ 6,093 |  | $ 5,774 |
Weighted average number of ordinary and restricted shares | 2,016 | 2,013 |  | 2,007 |
Underlying EPS | $ 3.05 | $ 3.03 |  | $ 2.88 |
Profit attributable to equity holders of AB InBev | $ 5,341 | $ 5,969 |  | $ 4,670 |
Weighted average number of ordinary and restricted shares (diluted) | 2,054 | 2,050 |  | 2,045 |
Diluted EPS | $ 2.6 | $ 2.91 | [1] | $ 2.28 | [1]
[1] | As from 1 January 2023, mark-to-market gains/(losses) on derivatives related to the hedging of the share-based payment programs are reported in the exceptional net finance income/(cost). The 2021 and 2022 presentation were amended to conform to the 2023 presentation.

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