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Note 6 - Net Sales (Details Textual) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Statement Line Items [Line Items] |  |
Gain from favorable judicial decisions for excluding the ICMS from the taxable basis of PIS and COFINS | R$ 654.6 | R$ 241.2

X
- Definition Represents the amount of gain from favorable judicial decisions for excluding the ICMS from the taxable basis of PIS and COFINS. + References No definition available. + Details
Name: | abev_GainFromFavorableJudicialDecisionsForExcludingTheICMSFromTheTaxableBasisOfPISAndCOFINS
Namespace Prefix: | abev_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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