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Contingencies - Additional Information (Detail) € in Millions, R$ in Millions, $ in Millions, $ in Billions | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) shares | Dec. 31, 2021 BRL (R$) shares | Dec. 31, 2021 AUD ($) shares | Dec. 31, 2021 EUR (€) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Jan. 24, 2019 USD ($) | Jan. 24, 2019 EUR (€)
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Exposure to credit risk | $ 18,258 |  |  |  | $ 21,598 |  |  |
Provisions recorded | $ 605 |  |  |  | $ 763 | $ 911 |  |
Number of shares issued | shares | 1,972,000,000 | 1,972,000,000 | 1,972,000,000 | 1,972,000,000 | 1,959,000,000 | 1,957,000,000 |  |
Disallowance Of Tax Paid Abroad [Member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | $ 2,000 | R$ 11,300 |  |  |  |  |  |
Deductibility Of IOC Expenses [Member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | 1,900 | 10,500 |  |  |  |  |  |
Grupo Modelo Tax Matters [Member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss |  |  | $ 0.4 |  |  |  |  |
Interest Deduction On SAB Acquistions [Member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Tax assessment amount | 300 |  |  |  |  |  |  |
Provisions recorded | 100 |  |  |  |  |  |  |
Income taxes paid (refund), classified as financing activities | 47 |  |  |  |  |  |  |
Ambev [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | $ 900 | R$ 4,900 |  |  |  |  |  |
Ambev [member] | Legal proceedings contingent liability [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Number of shares issued | shares | 172,831,574 | 172,831,574 | 172,831,574 | 172,831,574 |  |  |  |
Percentage of shares issued diluted | 1.00% |  |  |  |  |  |  |
Arosuco [member] | Disallowance Of Tax Paid Abroad [Member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | $ 400 | R$ 2,100 |  |  |  |  |  |
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 | 7,500 |  |  |  |  |  |
Tax Assessment During 2005 [member] | Ambev [member] | In Bev Holding Brasil SA [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Provisions recorded | 10 | 54 |  |  |  |  |  |
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 | 900 | 5,000 |  |  |  |  |  |
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 | 1,900 | 10,400 |  |  |  |  |  |
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 | 1,000 |  |  |  |  |  |
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 | 200 | 900 |  |  |  |  |  |
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 | 400 | 2,300 |  |  |  |  |  |
Tax Assessment in 2014 and 2015 [member] | Ambev [member] | IPI excise tax [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | 300 | 1,600 |  |  |  |  |  |
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 | 300 | 1,800 |  |  |  |  |  |
Rio de Janeiro [member] | Arosuco [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | 100 | 500 |  |  |  |  |  |
Minas Gerais [member] | Ambev [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | 1,500 | 8,400 |  |  |  |  |  |
State Of Pernambuco [member] | Ambev [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Estimate of possible loss | 400 | R$ 2,000 |  |  |  |  |  |
Blocked account [member] |  |  |  |  |  |  |  |
Disclosure of detailed information about material tax [line items] |  |  |  |  |  |  |  |
Provisions recorded | $ 77 |  |  | € 68 |  |  |  |
Deposits |  |  |  |  |  |  | $ 77 | € 68

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