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Note 3 - Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Statement Line Items [Line Items] |  |
Amortisation period of intangible assets material to entity | 5 years | 5 years
Bottom of range [member] |  |
Statement Line Items [Line Items] |  |
Amortisation period of intangible assets material to entity | 3 years |
Top of range [member] |  |
Statement Line Items [Line Items] |  |
Amortisation period of intangible assets material to entity | 5 years |

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

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: |