RISK MANAGEMENT - Liquidity risk exposure (Details) - Liquidity risk - COP ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
RISK MANAGEMENT
Net cash outflows into 30 days	$ 18,227,019	$ 15,897,163
Liquid assets	$ 48,059,179	$ 44,198,889
Liquidity coverage ratio	263.67%	278.03%

A classification of cash equivalents representing short-term investments. [Refer: Cash equivalents]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant