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COMMITMENTS AND CONTINGENCIES - Investigations (Details) - Aug. 10, 2023 $ in Millions, $ in Millions	USD ($)	COP ($)
Disclosure of commitments and contingencies [abstract]
Civil administrative resolutions liability	$ 60.6	$ 253,033

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- Definition

Civil administrative resolutions liability

+ References

No definition available.

+ Details

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Namespace Prefix:	aval_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	aval_DisclosureOfCommitmentsAndContingenciesAbstract
Namespace Prefix:	aval_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration