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INVESTMENTS IN ASSOCIATES AND JOINT VENTURES - Voting right percentage (Details) - COP ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of associates [line items] |  |
Book value | $ 1,288,641 | $ 1,419,296
Gas Natural de Lima y Callao S.A. - Calidda [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 40.00% | 40.00%
Book value | $ 614,577 | $ 768,953
Gases del Caribe S.A. E.S.P. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 31.00% | 31.00%
Book value | $ 328,661 | $ 313,968
Credibanco S.A. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 25.00% | 25.00%
Book value | $ 210,399 | $ 205,604
Redeban Multicolor S.A. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 20.00% | 20.00%
Book value | $ 41,562 | $ 33,183
A.C.H Colombia S.A. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 34.00% | 34.00%
Book value | $ 32,580 | $ 32,134
Aerocali S.A. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 50.00% | 50.00%
Book value | $ 24,389 | $ 30,499
Colombiana de Extrusion S.A. Extrucol [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 30.00% | 30.00%
Book value | $ 14,507 | $ 12,321
ADL Digital Lab SAS [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 34.00% | 34.00%
Book value | $ 12,231 | $ 8,439
Servicios de Identidad Digital S.A.S [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 33.00% | 33.00%
Book value | $ 4,039 | $ 7,050
Energia Eficiente S.A. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 33.00% | 33.00%
Book value | $ 3,485 | $ 4,136
Metrex S.A. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest | 18.00% | 18.00%
Book value | $ 2,211 | $ 2,596
Concentra Inteligencia en Energia S.A.S. [member] |  |
Disclosure of associates [line items] |  |
Ownership interest |  | 24.00%
Book value |  | $ 413

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