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INCOME TAX - Uncertainties in open tax positions (Details) - COP ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure of income tax [abstract]
Tax uncertainty liability	$ 0	$ 3,535

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- References

No definition available.

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- Definition

Tax uncertainty liability

+ References

No definition available.

+ Details

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