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v3.20.2

Share-Based Payments - Ambev Share-Based Payment Programs - Additional Information (Detail) $ in Millions | 6 Months Ended
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Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($)
Restricted Stock Units [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Share-based compensation grant date fair value | $ 2 | $ 52
Restricted Stock Units [member] | Ambev [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Share-based compensation number of shares issued | 1,600,000 | 3,800,000
Share-based compensation grant date fair value | $ 6 | $ 15
Long Term Incentive Stock Option Plan [member] | Ambev [member] |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Share-based compensation number of shares issued | 0 | 1,400,000
Share-based compensation grant date fair value |  | $ 2

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