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RISK MANAGEMENT - Risk management - Regulatory (Details) - Measure Trading Risk Method - COP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Banco de Bogota S.A. |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Value | $ 639,228 | $ 759,624
Basis points of regulatory capital (as a percent) | 1.11% | 1.16%
Banco de Occidente S.A. |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Value | $ 218,355 | $ 272,515
Basis points of regulatory capital (as a percent) | 0.67% | 0.90%
Banco Popular S.A. |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Value | $ 336,718 | $ 147,685
Basis points of regulatory capital (as a percent) | 1.85% | 1.16%
Banco Comercial AV Villas S.A. |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Value | $ 47,004 | $ 96,711
Basis points of regulatory capital (as a percent) | 0.55% | 1.05%
Corficolombiana |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Value | $ 240,068 | $ 190,534
Basis points of regulatory capital (as a percent) | 5.19% | 4.84%
Sociedad Administradora de Fondos de Pensiones y Cesantias Porvenir S.A. |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Value | $ 10,927 | $ 13,808
Basis points of regulatory capital (as a percent) | 0.92% | 1.48%

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- Definition The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 41 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_41&doctype=Standard -URIDate 2023-03-23 + Details
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