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HEDGE ACCOUNTING - Interest rate swaps and cross currency swaps (Details) $ in Thousands, $ in Millions | Dec. 31, 2023 USD ($) contract | Dec. 31, 2023 COP ($) contract | Dec. 31, 2022 COP ($)
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Disclosure of detailed information about hedging instruments [line items] |  |  |
Hedging derivatives |  | $ 48,662 | $ 20,854
Other Accounts Receivable [Member] | Banco de Bogota S.A. | Hedges of net investment in foreign operations |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Income in Thousands of U.S. dollar forecasted | $ 309,788 |  |
Notional amount contracts forward U.S. dollars | 309,788 |  |
% hedged | 100.00% | 100.00% |
Hedging derivatives |  | $ 1,184,025 |
# of contracts | contract | 1 | 1 |
Other Accounts Receivable [Member] | Corficolombiana | Hedges of net investment in foreign operations |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Income in Thousands of U.S. dollar forecasted | $ 7,610 |  |
Notional amount contracts forward U.S. dollars | 7,610 |  |
% hedged | 100.00% | 100.00% |
# of contracts | contract | 17 | 17 |
Financial obligations [member] | Banco de Bogota S.A. | Hedges of net investment in foreign operations |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |
Income in Thousands of U.S. dollar forecasted | $ 1,097,038 |  |
Notional amount contracts forward U.S. dollars | 1,098,950 |  |
% hedged | 100.00% | 100.00% |
Hedging derivatives |  | $ 4,152,626 |
# of contracts | contract | 74 | 74 |

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