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EQUITY ATTRIBUTABLE TO OWNERS OF THE PARENT - Legal reserve (Details) | 12 Months Ended
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Dec. 31, 2024
Disclosure of classes of share capital [abstract] |
Legal reserve as percentage of net profit | 10.00%
Maximum legal reserve as percentage of subscription capital stock | 50.00%
Maximum legal reserve as percentage of subscription capital stock, reduced to stem losses in excess of retained earnings | 50.00%

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- Definition The percentage of net profit to calculate legal reserve. + References No definition available. + Details
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Namespace Prefix: | aval_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of subscription capital stock to calculate maximum legal reserve. + References No definition available. + Details
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Data Type: | dtr-types:percentItemType
Balance Type: | na
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- Definition Maximum legal reserve as percentage of subscription capital stock, reduced to stem losses in excess of retained earnings + References No definition available. + Details
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Namespace Prefix: | aval_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | ifrs-full_
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