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INCOME TAX - Minimum tax rate (Details) | 12 Months Ended
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Dec. 31, 2023
Disclosure of income tax [abstract] |
Minimum tax rate (as a percent) | 15.00%

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- References No definition available. + Details
Name: | aval_DisclosureOfIncomeTaxAbstract
Namespace Prefix: | aval_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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