XML 622 R266.htm IDEA: XBRL DOCUMENT
v3.25.1

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

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

X
- Definition Tax uncertainty liability + References No definition available. + Details
Name: | aval_TaxUncertaintyLiability
Namespace Prefix: | aval_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant