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Contingencies - Additional Information (Detail)
€ in Millions, R$ in Millions, $ in Millions, ر.س in Billions, Tsh in Billions, R in Billions, $ in Billions
 12 Months Ended
Jan. 31, 2024
Nov. 30, 2023
Dec. 31, 2023
USD ($)
Dec. 31, 2023
BRL (R$)
Dec. 31, 2023
TZS (Tsh)
Dec. 31, 2023
SAR (ر.س)
Dec. 31, 2023
AUD ($)
Dec. 31, 2023
ZAR (R)
Dec. 31, 2023
EUR (€)
Sep. 20, 2023
USD ($)
Sep. 20, 2023
BRL (R$)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Jan. 24, 2019
USD ($)
Jan. 24, 2019
EUR (€)
Disclosure of detailed information about material tax [line items]                              
Exposure to credit risk     $ 17,116                 $ 16,019      
Provisions recorded     589                 $ 572 $ 605    
Eligible amount under tax incentive schemes     500 R$ 2,600                      
Tax methodology difference between tax authority and entity     5 20                      
Legal proceedings provision     0                        
Tax Loss Offset [Member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     100 200                      
Disallowance Of Tax Paid Abroad [Member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     2,900 14,300                      
Deductibility Of IOC Expenses [Member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     5,700 27,400                      
AB INBEVS SOUTH AFRICA TAX MATTERS [Member]                              
Disclosure of detailed information about material tax [line items]                              
Additional liability towards taxes and interest one     1,000       $ 17.7                
Contingent liabilities     300     ر.س 6.4                  
Ambev [member]                              
Disclosure of detailed information about material tax [line items]                              
Loss Contingency, Estimate of Possible Loss                   $ 1,400 R$ 6,900        
Percentage reduction in the amount of damages sought as initially charged   150.00%                          
Ambev [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     $ 1,300 6,300                      
Percentage reduction in the amount of damages sought 98.00% 100.00%                          
Proportion of ownership interest in subsidiary     61.76%                        
Ambev [member] | IPI excise tax [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     $ 400 1,800                      
Arosuco [member] | Disallowance Of Tax Paid Abroad [Member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     $ 500 2,600                      
Cerbuco Brewing Inc [Member] | Cerveceria Bucanero S.A [Member]                              
Disclosure of detailed information about material tax [line items]                              
Proportion of ownership interest in subsidiary     50.00%                        
Tax Assessment During 2005 [member] | Foreign subsidiaries [member] | In Bev Holding Brasil SA [member]                              
Disclosure of detailed information about material tax [line items]                              
Exposure to credit risk     $ 1,300 6,100                      
Tax Assessment During 2005 [member] | Ambev [member] | Foreign subsidiaries [member] | In Bev Holding Brasil SA [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     100 300                      
Tax Assessment in December 2011 [member] | Ambev [member] | In Bev Holding Brasil SA [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     200 1,200                      
Tax Assessment in December 2011 [member] | Ambev [member] | CERVECERIA NACIONAL DOMINICANA S.A. [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     300 1,400                      
Tax assessment in October 2013 [member] | Ambev [member] | In Bev Holding Brasil SA [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     1,300 6,500                      
Tax assessment in October 2013 [member] | Ambev [member] | Beverage Associates Holding Limited [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     300 1,400                      
Tax Assessment in December 2015 [member] | Ambev [member] | Integration program social security financing levy [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     400 1,800                      
Tax Assessment in December [Member] | Ambev [member] | MAG [Member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     100 300                      
Rio de Janeiro [member] | Arosuco [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     $ 100 R$ 600                      
Tanzania [member] | TANZANIA BREWERIES PLC [member]                              
Disclosure of detailed information about material tax [line items]                              
Proportion of ownership interest in subsidiary     39.65%                        
Tanzania [member] | Tax contingent liability [member] | TANZANIA BREWERIES PLC [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimated financial effect of contingent liabilities     $ 300   Tsh 850                    
Tax asessment noticed on ownership change     50.00% 50.00% 50.00% 50.00% 50.00% 50.00% 50.00%            
SOUTH AFRICA | THE SOUTH AFRICAN BREWERIES (PTY) LTD [member] | AB INBEVS SOUTH AFRICA TAX MATTERS [Member]                              
Disclosure of detailed information about material tax [line items]                              
Estimated financial effect of contingent liabilities     $ 500         R 8.9              
ICMS-ST Trigger [member] | Ambev [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     2,200 R$ 10,700                      
ICMS Tax Credits For Rio Grande do Sul and Sao Paulo [Member] | Tax Assessment in 2018 and 2021 [member] | Ambev [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     200 800                      
ICMS Tax Credits For Sao Paulo, Rio de Janeiro and Minas Gerais [Member] | Ambev [member]                              
Disclosure of detailed information about material tax [line items]                              
Estimate of possible loss     100 R$ 500                      
Blocked account [member]                              
Disclosure of detailed information about material tax [line items]                              
Provisions recorded     $ 75           € 68            
Deposits                           $ 75 € 68