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FINANCIAL OBLIGATIONS - Interbank borrowings, overnight funds - Tabular disclosure (Details) - COP ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of detailed information about borrowings [line items] |  |
Total interbank borrowings and overnight funds | $ 18,509,769 | $ 15,081,920
Colombia, Pesos |  |
Disclosure of detailed information about borrowings [line items] |  |
Overnight funds | 41,570 | 24,539
Interbank funds purchased | 781,409 | 671,542
Commitments to transfer open and closed repo operations | 9,898,971 | 3,746,752
Commitments to transfer simultaneous operations | 5,648,747 | 9,158,585
Commitments originated in short positions simultaneous operations | 1,093,006 | 1,093,314
Temporary securities transfer operations | 2 |
Total interbank funds | 17,463,705 | 14,694,732
Foreign currency [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Overnight funds |  | 14,241
Commitments to transfer open and closed repo operations | 1,046,064 | 372,947
Total interbank funds | $ 1,046,064 | $ 387,188

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- Definition Borrowings and overnight funds + References No definition available. + Details
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- Definition Amount of commitments originated in short positions simultaneous operations. + References No definition available. + Details
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- Definition Amount of commitments to transfer open and closed repo operations. + References No definition available. + Details
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- Definition Amount of commitments to transfer simultaneous operations. + References No definition available. + Details
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- Definition Amount of total interbank funds. + References No definition available. + Details
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- Definition Amount of interbank funds purchased. + References No definition available. + Details
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Namespace Prefix: | aval_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- Definition Amount of overnight funds. + References No definition available. + Details
Name: | aval_OvernightFunds
Namespace Prefix: | aval_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Temporary securities transfer operations + 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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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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