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INCOME TAX - Minimum tax rate (Details)	12 Months Ended
	Dec. 31, 2024
Disclosure of income tax [abstract]
Minimum tax rate (as a percent)	15.00%

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- References

No definition available.

+ Details

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Namespace Prefix:	aval_
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- Definition

Minimum tax rate

+ References

No definition available.

+ Details

Name:	aval_MinimumTaxRate
Namespace Prefix:	aval_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration