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Note 14 - Goodwill (Details Textual) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Statement Line Items [Line Items] |  |
Goodwill percentage of total assets | 36.00% | 36.00%
Cost to sell rate | 1.50% |

X
- Definition The percentage amount of the entity value for cost to sell. + References No definition available. + Details
Name: | abev_CostToSellRate
Namespace Prefix: | abev_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of total assets that make up goodwill. + References No definition available. + Details
Name: | abev_GoodwillPercentageOfTotalAssets
Namespace Prefix: | abev_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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