Share-Based Payments - Summary of Weighted Average Fair Value of Options and Assumptions (Detail) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Fair value of options granted	$ 7.54	$ 11.79	$ 0
Share price	$ 46.35	$ 78.46
Exercise price	$ 46.35	$ 78.46
Expected volatility	25.00%	23.00%
Expected dividends	3.00%	3.00%
Risk-free interest rate	(0.32%)	0.43%
Ambev [member] \| Brazil [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Fair value of options granted	$ 0.78	$ 1.12
Share price	$ 3.47	$ 4.38
Exercise price	$ 3.47	$ 4.38
Expected volatility	22.00%	24.00%
Risk-free interest rate	6.80%	7.80%
Bottom of range [member] \| Ambev [member] \| Brazil [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected dividends	0.00%	0.00%
Top of range [member] \| Ambev [member] \| Brazil [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected dividends	5.00%	5.00%

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
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-URIDate 2021-03-24

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The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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- Definition

The exercise price of share options granted.

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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

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The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph a
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-URIDate 2021-03-24

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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

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