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FINANCIAL OBLIGATIONS - Interbank borrowings, overnight funds - Tabular disclosure (Details) - COP ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure of detailed information about borrowings [line items] |  |
Total borrowings from banks and others | $ 22,218,460 | $ 30,309,358
Colombia, Pesos |  |
Disclosure of detailed information about borrowings [line items] |  |
Overnight funds | 24,539 | 10,049
Interbank funds purchased | 671,542 | 271,843
Commitments to transfer open and closed repo operations | 3,746,752 | 2,221,471
Commitments to transfer simultaneous operations | 9,158,585 | 4,106,145
Commitments originated in short positions simultaneous operations | 1,093,314 | 784,651
Total interbank funds | 14,694,732 | 7,394,159
Borrowings | 3,605,693 | 3,986,088
Lease contracts | 1,793,568 | 1,566,279
Overdrafts in bank checking account | 13 | 52
Other financial obligations | 237,129 | 237,993
Total borrowings from banks and others | 5,636,403 | 5,790,412
Foreign currency [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Overnight funds | 14,241 | 7,199
Interbank funds purchased |  | 450,762
Commitments to transfer open and closed repo operations | 372,947 | 1,162,612
Commitments to transfer simultaneous operations |  | 73,189
Total interbank funds | 387,188 | 1,693,762
Borrowings | 12,077,906 | 18,699,150
Lease contracts | 998,180 | 769,665
Letters of credit | 1,026,404 | 1,256,283
Bankers Acceptances | 2,479,567 | 3,793,848
Total borrowings from banks and others | 16,582,057 | 24,518,946
Total interbank borrowings, overnight funds and borrowings from banks and others | $ 37,300,380 | $ 39,397,279

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