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Note 15 - Intangible (Details Textual) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Statement Line Items [Line Items] |  |
Amortization period of intangible assets of definite useful life | 5 years | 5 years
Amortization rate of intangible assets of definite useful life | 20.00% | 20.00%

X
- Definition The amortisation period of individual intangible assets that are material to the entity’s financial statements. + References No definition available. + Details
Name: | abev_AmortisationPeriodOfIntangibleAssetsOfDefiniteUsefulLife
Namespace Prefix: | abev_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The rate at which amortisation occurs for intangible assets per year. + References No definition available. + Details
Name: | abev_AmortisationRateOfIntangibleAssetsOfDefiniteUsefulLife
Namespace Prefix: | abev_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | abev_StatementLineItems
Namespace Prefix: | abev_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration