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Cover - shares
 12 Months Ended
Dec. 31, 2022
Feb. 24, 2023
Entity Addresses [Line Items]    
Document Type 20-F  
Amendment Flag false  
Document Registration Statement false  
Document Annual Report true  
Document Transition Report false  
Document Shell Company Report false  
Document Period End Date Dec. 31, 2022  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2022  
Current Fiscal Year End Date --12-31  
Entity File Number 001-36165  
Entity Registrant Name AMBEV S.A.  
Entity Central Index Key 0001565025  
Entity Incorporation, State or Country Code D5  
Entity Address, Address Line One Rua Dr. Renato Paes de Barros, 1017, 3rd floor  
Entity Address, City or Town São Paulo  
Entity Address, Country BR  
Entity Address, Postal Zip Code 04530-001  
Title of 12(b) Security American Depositary Shares,  
Trading Symbol ABEV  
Security Exchange Name NYSE  
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Emerging Growth Company false  
Document Accounting Standard International Financial Reporting Standards  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   15,750,216,851
ICFR Auditor Attestation Flag true  
Auditor Firm Id 1351  
Auditor Location São Paulo  
Auditor Name PricewaterhouseCoopers Auditores Independentes Ltda.  
Business Contact [Member]    
Entity Addresses [Line Items]    
Entity Address, Address Line One Rua Dr. Renato Paes de Barros  
Entity Address, City or Town São Paulo  
Entity Address, Country BR  
Entity Address, Postal Zip Code 04530-001  
City Area Code 55  
Local Phone Number 2122-1200  
Contact Personnel Name Lucas Machado Lira