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Note 8 - Exceptional Items (Details Textual) - BRL (R$) R$ in Millions		1 Months Ended
	Dec. 01, 2017	Dec. 31, 2017
Statement Line Items [Line Items]
Finance costs, exceptional items		R$ 977
Tax income (expense), exceptional items	R$ (2,800)

X

- Definition

The amount of costs associated with financing activities of the entity related to exceptional items.

+ References

No definition available.

+ Details

Name:	abev_FinanceCostsExceptionalItems
Namespace Prefix:	abev_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax that relate to continuing operations regarding exceptional items.

+ References

No definition available.

+ Details

Name:	abev_IncomeTaxExpenseContinuingOperationsExceptionalItems
Namespace Prefix:	abev_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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