v3.26.1
INCOME TAX - Effect of the current and deferred taxes in each component of other comprehensive income in equity - Tabular disclosure (Details) - COP ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]      
Hedged Items $ (630,465) $ 514,713 $ (797,514)
Hedging non-derivative instruments 613,587 (500,007) 760,997
Cash flow hedges 177,002 55,081 (35,923)
Foreign currency translation differences for foreign operations (372,722) 247,019 (409,671)
Unrealized (losses) gains on securities at FVOCI (301,599) (163,387) 1,681,726
Investments in associates (56,424) 15,329 (35,892)
Total other comprehensive income that will be reclassified to profit or loss, before tax (570,621) 168,748 1,163,723
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]      
Tax (expense) income - Hedging of net investments in foreign subsidiaries operations, deferred 2,447 (1,988) 3,972
Current tax (expense) income - Hedging derivatives in foreign currency     919
Deferred tax (expense) income - Hedging derivatives in foreign currency     (2,930)
Deferred tax (expense) income - Hedging non-derivative instrument (218,090) 176,097 (266,321)
Tax (expense) income - Cash flow hedges, deferred (138,554) 45,697 (83,357)
Tax (expense) income - Foreign currency translation differences for foreign operations, deferred 37,687 (17,298) 44,884
Tax (expense) income - Debt financial instruments, deferred 145,414 36,715 (517,560)
Tax (expense) income - Investment in associates and joint ventures 1,949 (548) 1,660
Total income tax relating to components of other comprehensive income that will be reclassified to profit or loss (169,147) 238,675 (818,733)
Current income tax relating to components of other comprehensive income that will be reclassified to profit or loss     919
Deferred income tax relating to components of other comprehensive income that will be reclassified to profit or loss (169,147) 238,675 (819,652)
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]      
Net gain (loss) on hedges of net investments in foreign operations - Hedging derivative instrument (628,018) 512,725 (793,542)
Net gain (loss) on hedges of net investments in foreign operations - Foreign currency translation differences from hedged foreign operations     (2,011)
Net gain (loss) on hedges of net investments in foreign operations - Hedging non-derivative instrument 395,497 (323,910) 494,676
Cash flow hedges 38,448 100,778 (119,280)
Foreign currency translation differences for foreign operations (335,035) 229,721 (364,787)
Debt financial instruments (156,185) (126,672) 1,164,166
Investments in associates and joint ventures (54,475) 14,781 (34,232)
Total items that may be reclassified to profit or loss (739,768) 407,423 344,990
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]      
Transfer from owner-occupied property to investment property (1,095) 16,741 (1,963)
Unrealized gains (losses) on equity financial securities 260,051 301,497 156,383
Actuarial gains (losses) from defined benefit pension plans 13,271 (12,346) (54,630)
Total other comprehensive income that will not be reclassified to profit or loss, before tax 272,227 305,892 99,790
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]      
Tax (expense) income - Transfer from owner-occupied property to investment property, deferred 4,098 (6,699) 1,051
Tax (expense) income - Unrealized gains (losses) on equity financial securities, deferred (1,365) (10,668) (10,646)
Tax (expense) income - Actuarial gains (losses) from defined benefit pension plans, deferred (2,672) 3,535 14,673
Total tax (expense) income, deferred 61 (13,832) 5,078
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]      
Transfer from owner-occupied property to investment property 3,003 10,042 (912)
Unrealized gains (losses) on equity financial securities 258,686 290,829 145,737
Actuarial gains (losses) from defined benefit pension plans 10,599 (8,811) (39,957)
Total items that will not be reclassified to profit or loss 272,288 292,060 104,868
Tax (expense) income (169,086) 224,843 (814,574)
Aggregate continuing and discontinued operations [member]      
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]      
Total items that may be reclassified to profit or loss (568,226) 458,118 458,930
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]      
Total items that will not be reclassified to profit or loss 271,691 288,015 103,597
Total other comprehensive income during the period net of taxes (296,535) 746,133 562,527
Continuing and discontinued operations, continuing operations [member]      
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]      
Total other comprehensive income, before tax (298,394) 474,640 (1,263,513)
Current tax (expense) income     919
Deferred tax (expense) income (169,086) 224,843 (814,574)
Total other comprehensive income during the period net of taxes (467,480) 699,483 449,858
Discontinued operations [member]      
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]      
Unrealized (losses) gains on securities at FVOCI 171,542 50,695 113,940
Total other comprehensive income that will be reclassified to profit or loss, before tax 171,542 50,695 113,940
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]      
Debt financial instruments 171,542 50,695 113,940
Total items that may be reclassified to profit or loss 171,542 50,695 113,940
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]      
Actuarial gains (losses) from defined benefit pension plans (796) (5,393) (1,694)
Total other comprehensive income that will not be reclassified to profit or loss, before tax (796) (5,393) (1,694)
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]      
Tax (expense) income - Actuarial gains (losses) from defined benefit pension plans, deferred 199 1,348 423
Total tax (expense) income, deferred 199 1,348 423
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]      
Actuarial gains (losses) from defined benefit pension plans (597) (4,045) (1,271)
Total items that will not be reclassified to profit or loss (597) (4,045) (1,271)
Total other comprehensive income, before tax 170,746 45,302 (112,246)
Deferred tax (expense) income 199 1,348 423
Total other comprehensive income during the period net of taxes $ 170,945 $ 46,650 $ 112,669