v3.25.4
Share-Based Payments - Summary of Number of Options Outstanding (Detail)
Unit_pure in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Ambev [member] | Brazil [Member]      
Disclosure of information about options outstanding [line items]      
Options outstanding at 1 January 72.5 88.0 99.8
Options forfeited during the year (12.3) (15.5) (11.8)
Options outstanding at the end of December 60.2 72.5 88.0
AB InBev [member]      
Disclosure of information about options outstanding [line items]      
Options outstanding at 1 January 69.2 75.8 83.2
Options exercised during the year (7.9) 0.0 (2.2)
Options forfeited during the year (14.3) (2.9) (1.3)
Options lapsed during the year (3.6) (3.7) (3.9)
Options outstanding at the end of December 43.4 69.2 75.8