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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
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Earnings per share [abstract]      
Profit attributable to equity holders of AB InBev $ 5,855 $ 5,341 $ 5,969
Weighted average number of ordinary and restricted shares 2,003 2,016 2,013
Basic EPS $ 2.92 $ 2.65 $ 2.97 [1]
Profit attributable to equity holders of AB InBev $ 5,855 $ 5,341 $ 5,969
Weighted average number of ordinary and restricted shares (diluted) 2,044 2,054 2,050
Diluted EPS $ 2.86 $ 2.6 $ 2.91 [1]
Underlying profit $ 7,061 $ 6,158 $ 6,093 [1]
Weighted average number of ordinary and restricted shares 2,003 2,016 2,013
Underlying EPS $ 3.53 $ 3.05 $ 3.03
[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/(expense). The 2022 presentation were amended to conform to the 2023 and 2024 presentation.