OTHER LIABILITIES - Classification (Details) - COP ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of accounts payable and other liabilities [abstract]
Liabilities to be canceled within twelve months	$ 8,800,905	$ 8,043,321
Liabilities to be canceled after twelve months	3,153,535	2,098,481
Total other liabilities	$ 11,954,440	$ 10,141,802

No definition available.

Name:	aval_DisclosureOfAccountsPayableAndOtherLiabilitiesAbstract
Namespace Prefix:	aval_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_OtherCurrentLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of liabilities that the entity does not separately disclose in the same statement or note.

+ References

+ Details

Name:	ifrs-full_OtherLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

+ References

+ Details

Name:	ifrs-full_OtherNoncurrentLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant