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COMMITMENTS AND CONTINGENCIES - Contingencies (Details) - COP ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure of contingent liabilities [line items] |  |
Estimated financial effect of contingent liabilities | $ 798,290 | $ 755,656
Legal provisions proceedings |  |
Disclosure of contingent liabilities [line items] |  |
Estimated financial effect of contingent liabilities | 124,012 | 123,603
Civil proceedings |  |
Disclosure of contingent liabilities [line items] |  |
Estimated financial effect of contingent liabilities | 344,152 | 273,795
Administrative and other proceedings |  |
Disclosure of contingent liabilities [line items] |  |
Estimated financial effect of contingent liabilities | $ 330,126 | $ 358,258

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