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REPORTING ENTITY - Spin off BAC Holding - Discontinued operations income statement (Details) - COP ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 14, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Interest income calculated using the effective interest method |  |  |  |  |
Loan portfolio |  |  | $ 26,534,115 | $ 17,559,516 | $ 11,882,144
Investments in debt securities |  |  | 2,385,289 | 1,843,516 | 909,265
Total interest income |  |  | 28,919,404 | 19,403,032 | 12,791,409
Interest expense |  |  |  |  |
Checking accounts |  |  | (253,043) | (159,114) | (62,378)
Savings accounts |  |  | (5,953,426) | (3,555,844) | (875,439)
Time deposits |  |  | (9,944,424) | (4,040,232) | (1,700,128)
Interest expense on deposits from customers |  |  | (16,214,226) | (7,756,432) | (2,637,945)
Financial obligations |  |  |  |  |
Interbank borrowings and overnight funds |  |  | (1,856,263) | (678,114) | (162,455)
Borrowings from banks and similar |  |  | (1,601,927) | (739,803) | (401,742)
Bonds issued |  |  | (2,159,948) | (2,092,843) | (1,368,660)
Total Financial obligations |  |  | (6,418,204) | (3,907,963) | (2,022,885)
Impairment (losses) recoveries on financial assets |  |  |  |  |
Loans and other accounts receivable |  |  | (4,751,039) | (3,120,403) | (3,192,335)
Other financial assets |  |  | 12,871 | (16,723) | (660)
Net impairment loss on financial assets |  |  | (4,182,394) | (2,493,148) | (2,721,083)
Net interest income, after impairment losses |  |  | 2,104,580 | 5,245,489 | 5,409,496
Income from commissions and fees |  |  | 4,356,336 | 3,874,439 | 3,795,929
Expenses from commissions and fees |  |  | (1,003,813) | (970,676) | (731,742)
Net income from commissions and fees |  |  | 3,352,523 | 2,903,763 | 3,064,187
Net trading (loss) income |  |  | (916,049) | 1,559,626 | 922,281
Other expenses |  |  | (8,346,454) | (7,409,783) | (6,790,056)
Net income before tax expense |  |  | 3,487,550 | 6,274,371 | 6,364,618
Net reclassifications of Other Comprehensive Income |  |  | $ 458,930 | (2,752,028) | 532,019
Net income from discontinued operations, net of tax |  |  |  | 866,166 | 1,627,312
Net income for the year attributable to: |  |  |  |  |
Owners of the parent |  |  |  | 593,990 | 1,118,556
Non-controlling interests |  |  |  | 272,176 | 508,756
Net income from discontinued operations, net of tax |  |  |  | $ 866,166 | $ 1,627,312
Net income per share basic (in Colombian pesos, see note 25.3 "Earnings per share"). |  |  |  | $ 25.67 | $ 50.20
Net income per share diluted (in Colombian pesos, see note 25.3 "Earnings per share"). |  |  |  | $ 25.67 | $ 50.20
BAC Holding International Corp |  |  |  |  |
Interest income calculated using the effective interest method |  |  |  |  |
Loan portfolio |  |  |  | $ 1,684,995 |
Investments in debt securities |  |  |  | 164,424 |
Total interest income |  |  |  | 1,849,419 |
Interest expense |  |  |  |  |
Checking accounts |  |  |  | (47,739) |
Savings accounts |  |  |  | (53,608) |
Time deposits |  |  |  | (324,670) |
Interest expense on deposits from customers |  |  |  | (426,017) |
Financial obligations |  |  |  |  |
Interbank borrowings and overnight funds |  |  |  | (253) |
Borrowings from banks and similar |  |  |  | (66,621) |
Bonds issued |  |  |  | (61,195) |
Total Financial obligations |  |  |  | (128,069) |
Net interest income |  |  |  | 1,295,333 |
Impairment (losses) recoveries on financial assets |  |  |  |  |
Loans and other accounts receivable |  |  |  | (264,926) |
Other financial assets |  |  |  | (2,850) |
Net impairment loss on financial assets |  |  |  | (267,776) |
Net interest income, after impairment losses |  |  |  | 1,027,557 |
Income from commissions and fees |  |  |  | 753,523 |
Expenses from commissions and fees |  |  |  | (30,396) |
Net income from commissions and fees |  |  |  | 723,127 |
Net trading (loss) income |  |  |  | 953 |
Other income |  |  |  | 543,073 |
Other expenses |  |  |  | (2,633,765) |
Net income before tax expense |  |  |  | (339,055) |
Income tax expense |  |  |  | (224,104) |
Net income (loss) from discontinued operations |  |  |  | (563,159) |
Net reclassifications of Other Comprehensive Income |  |  |  | 1,429,325 |
Net income from discontinued operations, net of tax |  |  |  | 866,166 |
Net income for the year attributable to: |  |  |  |  |
Owners of the parent |  |  |  | 593,990 |
Non-controlling interests |  |  |  | 272,177 |
Net income from discontinued operations, net of tax |  |  |  | $ 866,166 |
Net income per share basic (in Colombian pesos, see note 25.3 "Earnings per share"). |  |  |  | $ 25.67 |
Net income per share diluted (in Colombian pesos, see note 25.3 "Earnings per share"). | $ 25.67 |  |  |  |
BAC Holding International Corp | Ifrs Discontinued Operations, Disposed of by Means Other than Sale, Spinoff [Member] |  |  |  |  |
Interest income calculated using the effective interest method |  |  |  |  |
Loan portfolio |  | $ 1,684,995 |  |  |
Investments in debt securities |  | 164,424 |  |  |
Total interest income |  | 1,849,419 |  |  |
Interest expense |  |  |  |  |
Checking accounts |  | (47,739) |  |  |
Savings accounts |  | (53,608) |  |  |
Time deposits |  | (324,670) |  |  |
Interest expense on deposits from customers |  | (426,017) |  |  |
Financial obligations |  |  |  |  |
Interbank borrowings and overnight funds |  | (253) |  |  |
Borrowings from banks and similar |  | (66,621) |  |  |
Bonds issued |  | (61,195) |  |  |
Total Financial obligations |  | (128,069) |  |  |
Net interest income |  | 1,295,333 |  |  |
Impairment (losses) recoveries on financial assets |  |  |  |  |
Loans and other accounts receivable |  | (264,926) |  |  |
Other financial assets |  | (2,850) |  |  |
Net impairment loss on financial assets |  | (267,776) |  |  |
Net interest income, after impairment losses |  | 1,027,557 |  |  |
Income from commissions and fees |  | 753,523 |  |  |
Expenses from commissions and fees |  | (30,396) |  |  |
Net income from commissions and fees |  | 723,127 |  |  |
Net trading (loss) income |  | 953 |  |  |
Other income |  | 291,413 |  |  |
Other expenses |  | (1,274,056) |  |  |
Net income before tax expense |  | 768,994 |  |  |
Income tax expense |  | (224,104) |  |  |
Net income (loss) from discontinued operations |  | 544,890 |  |  |
Net reclassifications of Other Comprehensive Income |  | 1,052,622 |  |  |
Net income from discontinued operations, net of tax |  | 1,597,512 |  |  |
Net income for the year attributable to: |  |  |  |  |
Owners of the parent |  | 1,098,073 |  |  |
Non-controlling interests |  | 499,439 |  |  |
Net income from discontinued operations, net of tax |  | $ 1,597,512 |  |  |
Net income per share basic (in Colombian pesos, see note 25.3 "Earnings per share"). |  | $ 47.45 |  |  |
Net income per share diluted (in Colombian pesos, see note 25.3 "Earnings per share"). |  | $ 47.45 |  |  |

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