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Note 17 - Deferred Income Tax and Social Contribution - Applied Rates (Details) | 12 Months Ended
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Dec. 31, 2018
Central America and the Caribbean [member] | Bottom of range [member] |
Statement Line Items [Line Items] |
Applied rates | 23.00%
Central America and the Caribbean [member] | Top of range [member] |
Statement Line Items [Line Items] |
Applied rates | 31.00%
Latin America [Member] | Bottom of range [member] |
Statement Line Items [Line Items] |
Applied rates | 14.00%
Latin America [Member] | Top of range [member] |
Statement Line Items [Line Items] |
Applied rates | 30.00%
CANADA |
Statement Line Items [Line Items] |
Applied rates | 26.00%

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

X
- Definition The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from tax losses and social contributions. + References No definition available. + Details
Name: | abev_TaxRateEffectOfTaxLossesAndSocialContributions
Namespace Prefix: | abev_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=abev_CentralAmericaAndTheCaribbeanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_LatinAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |