v3.26.1
ESTIMATION OF FAIR VALUE - Measurements of fair value of assets on a recurring basis (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of fair value measurement of assets [line items]        
Assets $ 348,936,677 $ 327,859,383    
Recurring fair value measurement [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 63,143,409 54,083,268    
Recurring fair value measurement [member] | Other accounts receivable at fair value through profit or loss, mandatorily measured at fair value [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,635,437 4,181,835    
Recurring fair value measurement [member] | Service concession arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,635,437 4,181,835    
Recurring fair value measurement [member] | Debt securities [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 46,038,800 38,989,037    
Recurring fair value measurement [member] | Debt securities [member] | Financial assets at fair value through profit or loss, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 17,582,844 11,938,839    
Recurring fair value measurement [member] | Debt securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 17,582,844 11,937,414    
Recurring fair value measurement [member] | Debt securities [member] | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 28,455,956 27,050,198    
Recurring fair value measurement [member] | Securities issued or secured by Colombian Government | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 15,817,842 10,641,558    
Recurring fair value measurement [member] | Securities issued or secured by Colombian Government | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 24,602,699 18,267,908    
Recurring fair value measurement [member] | Securities issued or secured by other Colombian Government entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 213,079 183,760    
Recurring fair value measurement [member] | Securities issued or secured by other Colombian Government entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 506,251 462,745    
Recurring fair value measurement [member] | Securities issued or secured by foreign Governments | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 492,676 75,379    
Recurring fair value measurement [member] | Securities issued or secured by foreign Governments | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,334,686 4,502,810    
Recurring fair value measurement [member] | Securities issued by central banks | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets   204,855    
Recurring fair value measurement [member] | Securities issued or secured by other financial entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,032,570 1,002,194    
Recurring fair value measurement [member] | Securities issued or secured by other financial entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,753,545 2,626,783    
Recurring fair value measurement [member] | Securities issued by entities of the non-financial sector entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,939 8,813    
Recurring fair value measurement [member] | Securities issued by entities of the non-financial sector entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 22,617 249,660    
Recurring fair value measurement [member] | Other debt securities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 24,738 25,710    
Recurring fair value measurement [member] | Other debt securities | Investment securities at fair value [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets   1,425    
Recurring fair value measurement [member] | Other debt securities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 236,158 735,437    
Recurring fair value measurement [member] | Equity securities        
Disclosure of fair value measurement of assets [line items]        
Assets 10,897,205 8,677,809    
Recurring fair value measurement [member] | Trading equity securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 9,297,726 7,256,506    
Recurring fair value measurement [member] | Equity investments [member] | Investment securities at fair value [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,599,479 1,421,303    
Recurring fair value measurement [member] | Derivatives [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,217,021 969,294    
Recurring fair value measurement [member] | Derivatives [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 236,558 54,019    
Recurring fair value measurement [member] | Currency forward [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,047,383 530,625    
Recurring fair value measurement [member] | Currency forward [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 637 10,642    
Recurring fair value measurement [member] | Bond forward [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 310,987 117,053    
Recurring fair value measurement [member] | Interest rate swap contract [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 781,447 222,829    
Recurring fair value measurement [member] | Interest rate swap contract [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 235,921 43,377    
Recurring fair value measurement [member] | Currency swap contract [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 25,468 58,475    
Recurring fair value measurement [member] | Currency Options [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 51,736 40,312    
Recurring fair value measurement [member] | Non-financial assets [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,118,388 1,211,274    
Recurring fair value measurement [member] | Biological assets [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 235,409 238,339    
Recurring fair value measurement [member] | Investment property [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 882,979 972,935    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 35,839,058 26,567,032    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Debt securities [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 34,315,098 25,247,294    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Debt securities [member] | Financial assets at fair value through profit or loss, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 15,203,852 10,606,156    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Debt securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 15,203,852 10,606,156    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Debt securities [member] | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 19,111,246 14,641,138    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Securities issued or secured by Colombian Government | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 14,958,413 10,580,049    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Securities issued or secured by Colombian Government | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 18,992,124 13,391,650    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Securities issued or secured by other Colombian Government entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 46,411 52,253    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Securities issued or secured by foreign Governments | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 245,439 26,107    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Securities issued or secured by foreign Governments | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 72,711 1,195,495    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Other debt securities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets   1,740    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Equity securities        
Disclosure of fair value measurement of assets [line items]        
Assets 1,473,860 1,315,223    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Trading equity securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 15,284 12,711    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Equity investments [member] | Investment securities at fair value [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,458,576 1,302,512    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Derivatives [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 26,628 4,515    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Derivatives [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 23,472      
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Interest rate swap contract [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 26,628 4,515    
Recurring fair value measurement [member] | Level 1 of fair value hierarchy [member] | Interest rate swap contract [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 23,472      
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 19,838,339 18,808,725    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Debt securities [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 11,553,904 13,740,318    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Debt securities [member] | Financial assets at fair value through profit or loss, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,209,194 1,331,258    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Debt securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,209,194 1,331,258    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Debt securities [member] | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 9,344,710 12,409,060    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by Colombian Government | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 859,429 61,509    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by Colombian Government | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 5,610,575 4,876,258    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by other Colombian Government entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 213,079 183,760    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by other Colombian Government entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 459,840 410,492    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by foreign Governments | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 247,237 49,272    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by foreign Governments | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,261,975 3,307,315    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued by central banks | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets   204,855    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by other financial entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 862,772 1,002,194    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued or secured by other financial entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,753,545 2,626,783    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued by entities of the non-financial sector entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,939 8,813    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Securities issued by entities of the non-financial sector entities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 22,617 249,660    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Other debt securities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 24,738 25,710    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Other debt securities | Investment securities at fair value [member] | Financial assets measured at fair value through other comprehensive income, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 236,158 733,697    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Equity securities        
Disclosure of fair value measurement of assets [line items]        
Assets 5,177,138 4,049,609    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Trading equity securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 5,177,030 4,049,509    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Equity investments [member] | Investment securities at fair value [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 108 100    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Derivatives [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,190,393 964,779    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Derivatives [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 213,086 54,019    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Currency forward [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 1,047,383 530,625    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Currency forward [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 637 10,642    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Bond forward [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 310,987 117,053    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Interest rate swap contract [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 754,819 218,314    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Interest rate swap contract [member] | Hedging instruments [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 212,449 43,377    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Currency swap contract [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 25,468 58,475    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Currency Options [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 51,736 40,312    
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Non-financial assets [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 703,818      
Recurring fair value measurement [member] | Level 2 of fair value hierarchy [member] | Investment property [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 703,818      
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 7,466,012 8,707,511    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Other accounts receivable at fair value through profit or loss, mandatorily measured at fair value [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,635,437 4,181,835    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Service concession arrangement [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 2,635,437 4,181,835    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Debt securities [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 169,798 1,425 $ 1,889 $ 1,383
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Debt securities [member] | Financial assets at fair value through profit or loss, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 169,798 1,425    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Debt securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 169,798      
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Securities issued or secured by other financial entities | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 169,798      
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Other debt securities | Investment securities at fair value [member] | Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]        
Disclosure of fair value measurement of assets [line items]        
Assets   1,425    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Equity securities        
Disclosure of fair value measurement of assets [line items]        
Assets 4,246,207 3,312,977 2,770,226 2,302,280
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Trading equity securities [member] | Trading securities [member] | Financial assets at fair value through profit or loss, classified as held for trading, category, International Financial Reporting Standards 9 [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 4,105,412 3,194,286    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Equity investments [member] | Investment securities at fair value [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 140,795 118,691    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Non-financial assets [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 414,570 1,211,274    
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Biological assets [member]        
Disclosure of fair value measurement of assets [line items]        
Assets 235,409 238,339 230,672 212,630
Recurring fair value measurement [member] | Level 3 of fair value hierarchy [member] | Investment property [member]        
Disclosure of fair value measurement of assets [line items]        
Assets $ 179,161 $ 972,935 $ 906,469 $ 880,963