v3.26.1
RISK MANAGEMENT - Probability of default analysis (Details) - COP ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets $ 290,890,645 $ 292,433,720
Exposure to credit risk outside of the statement of financial position 31,618,592 28,676,421
Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 31,618,592 28,676,421
Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 192,655,943 200,136,125
Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 108,308,984 115,414,643
Interbank and overnight funds [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,777,516 705,055
Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 60,456,213 61,976,325
Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 22,111,710 22,035,727
Microcredit [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,520 4,375
0% - 7.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 29,817,306 25,067,455
0% - 7.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 168,936,314 168,133,795
0% - 7.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 96,708,991 96,826,695
0% - 7.5% | Interbank and overnight funds [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,777,516 703,863
0% - 7.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 49,810,334 50,801,313
0% - 7.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 20,638,966 19,801,506
7.5% - 15% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 1,191,378 897,444
7.5% - 15% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 7,503,480 12,111,469
7.5% - 15% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,207,106 6,717,057
7.5% - 15% | Interbank and overnight funds [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets   1,192
7.5% - 15% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 5,192,831 5,040,368
7.5% - 15% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 103,507 352,540
15% - 22.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 184,228 2,286,632
15% - 22.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,233,176 983,244
15% - 22.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 145,247 239,096
15% - 22.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,002,444 526,361
15% - 22.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 85,485 217,787
22.5% - 30% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 31,476 28,596
22.5% - 30% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 381,068 901,859
22.5% - 30% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 110,911 327,149
22.5% - 30% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 255,387 461,203
22.5% - 30% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 14,770 113,489
30% - 45% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 141,526 145,873
30% - 45% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,002,276 1,757,457
30% - 45% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,227,338 1,021,848
30% - 45% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 411,070 457,767
30% - 45% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 363,862 277,824
45% - 60% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 57,818 74,614
45% - 60% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 667,917 1,011,567
45% - 60% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 189,787 257,047
45% - 60% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 407,793 541,072
45% - 60% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 70,337 213,437
60% - 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 2,853 3,445
60% - 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,146,918 1,933,403
60% - 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 80,214 177,095
60% - 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 971,412 1,492,850
60% - 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 95,292 263,419
> 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 192,007 172,362
> 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 10,784,794 13,303,331
> 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 7,639,390 9,848,656
> 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,404,942 2,655,391
> 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 739,491 795,725
12-month expected credit losses [member] | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 30,436,622 25,575,571
12-month expected credit losses [member] | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 173,119,595 177,196,531
12-month expected credit losses [member] | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 96,612,261 101,927,905
12-month expected credit losses [member] | Interbank and overnight funds [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,777,516 705,055
12-month expected credit losses [member] | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 54,227,123 54,689,265
12-month expected credit losses [member] | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 20,502,152 19,873,529
12-month expected credit losses [member] | 0% - 7.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 29,737,149 25,001,252
12-month expected credit losses [member] | 0% - 7.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 165,440,008 165,325,376
12-month expected credit losses [member] | 0% - 7.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 94,590,767 95,690,974
12-month expected credit losses [member] | 0% - 7.5% | Interbank and overnight funds [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,777,516 703,863
12-month expected credit losses [member] | 0% - 7.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 48,569,942 49,327,615
12-month expected credit losses [member] | 0% - 7.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 20,501,276 19,602,506
12-month expected credit losses [member] | 7.5% - 15% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 626,507 460,057
12-month expected credit losses [member] | 7.5% - 15% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 6,670,078 10,731,075
12-month expected credit losses [member] | 7.5% - 15% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,820,441 5,926,757
12-month expected credit losses [member] | 7.5% - 15% | Interbank and overnight funds [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets   1,192
12-month expected credit losses [member] | 7.5% - 15% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 4,848,792 4,600,920
12-month expected credit losses [member] | 7.5% - 15% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 809 201,894
12-month expected credit losses [member] | 15% - 22.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 49,011 79,091
12-month expected credit losses [member] | 15% - 22.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 640,933 535,897
12-month expected credit losses [member] | 15% - 22.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 94,162 91,248
12-month expected credit losses [member] | 15% - 22.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 546,704 377,855
12-month expected credit losses [member] | 15% - 22.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 67 66,794
12-month expected credit losses [member] | 22.5% - 30% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 17,503 22,053
12-month expected credit losses [member] | 22.5% - 30% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 122,067 344,972
12-month expected credit losses [member] | 22.5% - 30% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 33,513 113,165
12-month expected credit losses [member] | 22.5% - 30% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 88,554 230,075
12-month expected credit losses [member] | 22.5% - 30% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets   1,718
12-month expected credit losses [member] | 30% - 45% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 5,137 12,330
12-month expected credit losses [member] | 30% - 45% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 184,363 185,460
12-month expected credit losses [member] | 30% - 45% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 44,839 69,485
12-month expected credit losses [member] | 30% - 45% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 139,524 115,355
12-month expected credit losses [member] | 30% - 45% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets   617
12-month expected credit losses [member] | 45% - 60% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 1,066 539
12-month expected credit losses [member] | 45% - 60% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 55,985 62,448
12-month expected credit losses [member] | 45% - 60% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 26,155 33,092
12-month expected credit losses [member] | 45% - 60% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 29,830 29,356
12-month expected credit losses [member] | 60% - 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 235 244
12-month expected credit losses [member] | 60% - 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 5,616 9,205
12-month expected credit losses [member] | 60% - 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,380 2,895
12-month expected credit losses [member] | 60% - 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 3,236 6,280
12-month expected credit losses [member] | > 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 14 5
12-month expected credit losses [member] | > 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 545 2,098
12-month expected credit losses [member] | > 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 4 289
12-month expected credit losses [member] | > 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 541 1,809
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 987,973 2,929,518
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 8,661,375 9,518,574
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 3,917,258 3,464,250
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 3,873,774 4,687,252
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 870,337 1,367,033
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 79,137 65,537
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 3,450,456 2,733,552
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,072,599 1,061,196
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,240,167 1,473,359
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 137,690 198,997
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 564,672 437,341
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 828,542 1,379,780
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 381,875 789,697
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 343,976 439,437
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 102,691 150,646
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 135,096 2,207,502
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 580,074 447,250
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 38,927 147,840
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 455,732 148,417
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 85,415 150,993
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 13,908 6,514
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 258,569 556,641
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 77,083 213,759
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 166,718 231,107
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 14,768 111,771
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 136,229 133,364
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,746,377 1,570,202
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,111,043 950,652
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 271,471 342,328
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 363,857 277,207
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 56,557 74,023
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 611,877 948,971
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 163,632 223,917
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 377,910 511,606
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 70,335 213,437
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 1,943 2,867
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,127,578 1,818,316
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 70,348 76,708
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 961,948 1,478,181
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 95,282 263,418
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 431 2,370
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 57,902 63,862
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 1,751 481
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 55,852 62,817
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 299 564
Financial instruments credit-impaired [member] | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 739,221 795,165
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 193,997 171,332
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 10,874,973 13,421,020
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 7,779,465 10,022,488
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,355,316 2,599,808
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 739,221 795,165
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 1,020 666
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 45,850 74,867
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 45,625 74,525
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 225 339
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 0% - 7.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets   3
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 199 46
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 4,860 614
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 4,790 603
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 63 11
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 7.5% - 15% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 7  
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 121 39
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 12,169 97
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 12,158 8
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 8 89
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 15% - 22.5% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 3  
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 65 29
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 432 246
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 315 225
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 115 21
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 22.5% - 30% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2  
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 160 179
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 71,536 1,795
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 71,456 1,711
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 75 84
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 30% - 45% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 5  
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 195 52
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 55 148
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets   38
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 53 110
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 45% - 60% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2  
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 675 334
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 13,724 105,882
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 7,486 97,492
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 6,228 8,389
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | 60% - 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 10 1
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Loan commitments and financial guarantee contracts [member]    
Disclosure of credit risk exposure [line items]    
Exposure to credit risk outside of the statement of financial position 191,562 169,987
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Loan portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 10,726,347 13,237,371
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Commercial lending portfolio [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 7,637,635 9,847,886
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Loans to consumers [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets 2,348,549 2,590,765
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | > 90% | Mortgages [member] | Financial assets at amortised cost, category [member]    
Disclosure of credit risk exposure [line items]    
Maximum exposure to credit risk, financial assets $ 739,192 $ 795,161