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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

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Namespace Prefix:	abev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	abev_StatementLineItems
Namespace Prefix:	abev_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration