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ANALYSIS OF OPERATING SEGMENTS - Statement of income (Details) - COP ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income |  |  |
Interest income | $ 28,919,404 | $ 19,403,032 | $ 12,791,409
Income from commissions and fees | 4,356,336 | 3,874,439 | 3,795,929
Income from sales of goods and services | 11,223,556 | 12,141,327 | 10,450,914
Share of profit of equity accounted investees, net of tax | 371,397 | 372,777 | 300,217
Dividends | 126,274 | 119,888 | 153,969
Net income from other financial instruments mandatorily at fair value through profit or loss | 323,685 | 278,751 | 270,095
Net trading income | (916,049) | 1,559,626 | 922,281
Foreign exchange gain (loss), net | 2,253,925 | (1,825,718) | (491,415)
Other income | 999,710 | 484,482 | 426,909
Discontinued operations |  | 866,166 | 10,444,185
Total external income | 47,658,238 | 37,274,770 | 39,064,493
Expenses |  |  |
Interest expense | (22,632,430) | (11,664,395) | (4,660,830)
Net impairment loss on financial assets | (4,182,394) | (2,493,148) | (2,721,083)
Depreciation and amortization | (670,491) | (645,746) | (606,867)
Expenses from commissions and fees | (1,003,813) | (970,676) | (731,742)
Costs and expenses of sales goods and services | (8,005,597) | (7,596,231) | (7,351,979)
Personnel expenses | (3,055,168) | (2,833,794) | (2,634,187)
Administrative expenses | (4,367,002) | (3,703,599) | (3,209,607)
Income tax expense | (1,310,434) | (2,271,404) | (2,323,428)
Other expense | (253,793) | (226,644) | (339,395)
Discontinued operations |  |  | (8,816,873)
Total Expenses | (45,481,122) | (32,405,637) | (33,395,991)
Net income for the year | 2,177,116 | 4,869,133 | 5,668,502
Net gain on sale of debt and equity securities | 108,773 | (134,699) | 83,640
Gain on the sale of non-current assets held for sale | 48,589 | 10,487 | 13,631
Net gain in asset valuation | 74,886 | 50,463 | 20,974
Other operating income | 767,462 | 558,231 | 308,664
Loss from sale of non-current assets held for sale | (595) | (800) | (2,927)
Other operating expenses | (253,198) | (225,844) | (336,468)
Banking Services |  |  |
Income |  |  |
Interest income | 27,293,337 | 18,321,381 | 12,304,916
Income from commissions and fees | 3,243,740 | 2,865,336 | 2,506,789
Income from sales of goods and services | 107,864 | 88,093 | 85,268
Share of profit of equity accounted investees, net of tax | 41,277 | 41,904 | 25,486
Dividends | 11,252 | 17,696 | 11,551
Net trading income | (1,245,312) | 1,207,099 | 490,743
Foreign exchange gain (loss), net | 1,575,043 | (1,286,774) | (189,065)
Other income | 817,906 | 583,001 | 411,634
Discontinued operations |  | 455,908 |
Total external income | 31,845,107 | 22,293,644 | 15,647,322
Expenses |  |  |
Interest expense | (19,260,207) | (9,602,059) | (3,745,070)
Net impairment loss on financial assets | (4,170,048) | (2,447,198) | (2,714,672)
Depreciation and amortization | (639,717) | (620,298) | (585,650)
Expenses from commissions and fees | (910,751) | (767,204) | (625,788)
Costs and expenses of sales goods and services | (443,840) | (487,142) | (479,775)
Personnel expenses | (2,672,717) | (2,493,399) | (2,331,813)
Administrative expenses | (4,185,245) | (3,569,706) | (3,131,934)
Income tax expense | 184,941 | (405,748) | (601,377)
Other expense | (212,354) | (178,160) | (98,699)
Total Expenses | (32,309,938) | (20,570,914) | (14,314,778)
Net income for the year | 827,173 | 2,910,450 | 5,298,672
Merchant Banking |  |  |
Income |  |  |
Interest income | 1,149,086 | 723,488 | 441,586
Income from commissions and fees | 134,252 | 127,609 | 94,244
Income from sales of goods and services | 11,069,075 | 11,986,518 | 10,309,563
Share of profit of equity accounted investees, net of tax | 326,328 | 326,448 | 272,646
Dividends | 115,022 | 102,192 | 142,418
Net income from other financial instruments mandatorily at fair value through profit or loss | 323,685 | 278,751 | 270,095
Net trading income | 34,383 | 388,350 | 207,794
Foreign exchange gain (loss), net | 692,134 | (483,627) | (243,430)
Other income | 153,118 | (98,871) | 15,705
Total external income | 13,997,083 | 13,350,858 | 11,510,621
Expenses |  |  |
Interest expense | (3,471,779) | (2,030,256) | (1,028,343)
Net impairment loss on financial assets | (28,175) | (14,266) | (9,177)
Depreciation and amortization | (14,028) | (11,492) | (9,434)
Expenses from commissions and fees | (16,104) | (17,175) | (13,587)
Costs and expenses of sales goods and services | (7,498,858) | (7,059,820) | (6,830,460)
Personnel expenses | (147,303) | (123,104) | (107,959)
Administrative expenses | (178,885) | (126,670) | (100,585)
Income tax expense | (1,268,268) | (1,753,733) | (1,476,571)
Other expense | (8,459) | (28,251) | (112,146)
Total Expenses | (12,631,859) | (11,164,767) | (9,688,262)
Net income for the year | 1,530,167 | 2,301,398 | 1,849,023
Pension and Severance Fund Management |  |  |
Income |  |  |
Interest income | 117,076 | 98,302 | 44,907
Income from commissions and fees | 978,344 | 881,494 | 1,194,305
Income from sales of goods and services | 46,617 | 66,716 | 56,083
Net trading income | 294,784 | (35,975) | 223,745
Foreign exchange gain (loss), net | (11,757) | (54,771) | (59,150)
Other income | 28,419 | (738) | (1,297)
Total external income | 1,453,483 | 955,028 | 1,458,593
Expenses |  |  |
Interest expense | (56,927) | (63,207) | (40,247)
Net impairment loss on financial assets | 1,965 | (7,782) | (6,943)
Depreciation and amortization | (16,786) | (14,486) | (15,637)
Expenses from commissions and fees | (104,773) | (193,124) | (131,503)
Costs and expenses of sales goods and services | (79,794) | (63,049) |
Personnel expenses | (195,469) | (168,450) | (172,539)
Administrative expenses | (259,331) | (195,071) | (232,314)
Income tax expense | (172,943) | (92,993) | (191,886)
Other expense | (32,721) | (19,152) | (105,961)
Total Expenses | (916,779) | (817,314) | (897,030)
Net income for the year | 560,209 | 155,194 | 580,203
Holding |  |  |
Income |  |  |
Interest income | 359,905 | 259,861 |
Income from commissions and fees |  |  | 591
Share of profit of equity accounted investees, net of tax | 3,792 | 4,425 | 2,085
Net trading income | 96 | 152 | (1)
Foreign exchange gain (loss), net | (1,495) | (546) | 230
Other income | 267 | 1,090 | 867
Discontinued operations |  | (134,632) |
Total external income | 362,565 | 130,350 | 3,772
Expenses |  |  |
Interest expense | (519,869) | (517,383) | (443,209)
Net impairment loss on financial assets | 12,578 | (23,840) |
Depreciation and amortization | (1,736) | (1,766) | (1,811)
Expenses from commissions and fees | (430) | (19,992) | (563)
Personnel expenses | (39,779) | (48,933) | (37,293)
Administrative expenses | (67,494) | (116,899) | (99,532)
Income tax expense | (56,966) | (18,802) | (53,555)
Other expense | 82,111 | (1,185) | (439)
Total Expenses | (591,585) | (748,800) | (636,402)
Net income for the year | 738,800 | 2,349,674 | 3,503,127
BAC Holding International Corp |  |  |
Income |  |  |
Discontinued operations |  | 544,890 | 10,444,185
Total external income |  | 544,890 | 10,444,185
Expenses |  |  |
Discontinued operations |  |  | (8,816,873)
Total Expenses |  |  | (8,816,873)
Net income for the year |  | 544,890 | 1,691,418
Operating segments [member] | Banking Services |  |  |
Income |  |  |
Total external income | 33,137,111 | 23,481,364 | 19,613,450
Operating segments [member] | Merchant Banking |  |  |
Income |  |  |
Total external income | 14,162,026 | 13,466,165 | 11,537,285
Operating segments [member] | Pension and Severance Fund Management |  |  |
Income |  |  |
Total external income | 1,476,988 | 972,508 | 1,477,233
Operating segments [member] | Holding |  |  |
Income |  |  |
Total external income | 1,330,385 | 3,098,474 | 4,139,529
Operating segments [member] | BAC Holding International Corp |  |  |
Income |  |  |
Total external income |  | 544,890 | 10,508,291
Elimination of intersegment amounts [member] |  |  |
Income |  |  |
Interest income | (569,696) | (530,837) | (593,536)
Income from commissions and fees | (324,001) | (312,089) | (309,178)
Income from sales of goods and services | (42,541) | (32,401) | (26,818)
Share of profit of equity accounted investees, net of tax | (1,473,062) | (2,800,365) | (4,270,858)
Dividends | (1,902) | (2,174) | (2,306)
Net trading income | (7,597) | 2,026 | 4,345
Foreign exchange gain (loss), net |  |  | 250
Gain on deconsolidation (loss of control) of subsidiaries |  |  | (1,303,024)
Other income | (29,473) | (16,143) | (18,752)
Discontinued operations |  | (596,648) | (1,691,418)
Total external income | (2,448,272) | (4,288,631) | (8,211,295)
Expenses |  |  |
Interest expense | 676,352 | 548,510 | 596,039
Net impairment loss on financial assets | 1,286 | (62) | 9,709
Depreciation and amortization | 1,776 | 2,296 | 5,665
Expenses from commissions and fees | 28,245 | 26,819 | 39,699
Costs and expenses of sales goods and services | 16,895 | 13,780 | (41,744)
Personnel expenses | 100 | 92 | 15,417
Administrative expenses | 323,953 | 304,747 | 354,758
Income tax expense | 2,802 | (128) | (39)
Other expense | (82,370) | 104 | (22,150)
Total Expenses | 969,039 | 896,158 | 957,354
Net income for the year | (1,479,233) | (3,392,473) | (7,253,941)
Elimination of intersegment amounts [member] | Banking Services |  |  |
Income |  |  |
Interest income | 376,228 | 240,317 | 120,669
Income from commissions and fees | 29,127 | 23,981 | 20,209
Income from sales of goods and services | 2,324 | 26,225 | 19,768
Share of profit of equity accounted investees, net of tax | 830,683 | 884,067 | 862,945
Dividends | 453 | 298 | 267
Net trading income | 80 |  | (2,040)
Gain on deconsolidation (loss of control) of subsidiaries |  |  | 1,303,024
Other income | 53,109 | 12,832 | 13,974
Discontinued operations |  |  | 1,627,312
Total external income | 1,292,004 | 1,187,720 | 3,966,128
Elimination of intersegment amounts [member] | Merchant Banking |  |  |
Income |  |  |
Interest income | 158,256 | 110,250 | 22,353
Income from commissions and fees | 1,979 | 1,502 | 1,821
Income from sales of goods and services | 1,844 | 1,603 | 933
Share of profit of equity accounted investees, net of tax | (341) | 427 | 1,139
Dividends | 1,449 | 1,876 | 2,039
Net trading income | 2,202 | (387) | (318)
Foreign exchange gain (loss), net |  |  | (250)
Other income | (446) | 36 | (1,053)
Total external income | 164,943 | 115,307 | 26,664
Elimination of intersegment amounts [member] | Pension and Severance Fund Management |  |  |
Income |  |  |
Interest income | 3,588 | 7,958 | 5,308
Income from commissions and fees | 254 | 3,682 | 3,508
Income from sales of goods and services | 38,373 | 4,573 | 6,117
Net trading income | 5,315 | (1,639) | (1,987)
Other income | (24,025) | 2,906 | 5,694
Total external income | 23,505 | 17,480 | 18,640
Elimination of intersegment amounts [member] | Holding |  |  |
Income |  |  |
Interest income | 31,624 | 172,312 | 445,206
Income from commissions and fees | 292,641 | 282,924 | 283,640
Share of profit of equity accounted investees, net of tax | 642,720 | 1,915,871 | 3,406,774
Other income | 835 | 369 | 137
Discontinued operations |  | 596,648 |
Total external income | $ 967,820 | $ 2,968,124 | 4,135,757
Elimination of intersegment amounts [member] | BAC Holding International Corp |  |  |
Income |  |  |
Discontinued operations |  |  | 64,106
Total external income |  |  | $ 64,106

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