v3.26.1
Risk Management - Credit quality of financial assets items (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk ₩ 680,718,558 ₩ 628,324,324
Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 267,395,011 266,401,488
Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 242,664,753 241,378,580
Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 22,382,806 22,815,602
Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,219,109 1,070,209
Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,128,343 1,137,097
Loans and other financial assets at amortized cost | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 267,395,011 266,401,488
Loans and other financial assets at amortized cost | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 242,664,753 241,378,580
Loans and other financial assets at amortized cost | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 354,069,178  
Loans and other financial assets at amortized cost | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 30,632,768  
Loans and other financial assets at amortized cost | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 22,382,806 22,815,602
Loans and other financial assets at amortized cost | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 13,842,896  
Loans and other financial assets at amortized cost | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 12,837,364  
Loans and other financial assets at amortized cost | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,219,109 1,070,209
Loans and other financial assets at amortized cost | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,128,343 1,137,097
Korean treasury and government agencies | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 103,817 55,775
Korean treasury and government agencies | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 103,817 55,775
Korean treasury and government agencies | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Korean treasury and government agencies | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Korean treasury and government agencies | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Banks | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,815,479 2,474,302
Banks | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,815,479 2,474,302
Banks | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Banks | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Banks | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Corporates | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 108,386,824 110,985,970
Corporates | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 99,471,630 101,666,963
Corporates | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 7,066,546 7,536,068
Corporates | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 720,305 645,842
Corporates | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,128,343 1,137,097
General business | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 66,863,838 65,006,883
General business | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 61,218,056 59,099,372
General business | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 5,128,816 5,578,709
General business | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 516,966 328,802
General business | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Small and medium sized enterprise | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 28,399,916 36,375,069
Small and medium sized enterprise | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 26,662,910 34,401,736
Small and medium sized enterprise | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,594,623 1,729,820
Small and medium sized enterprise | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 142,383 243,513
Small and medium sized enterprise | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Project financing and others | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 13,123,070 9,604,018
Project financing and others | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 11,590,664 8,165,855
Project financing and others | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 343,107 227,539
Project financing and others | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 60,956 73,527
Project financing and others | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 1,128,343 1,137,097
Consumers | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 157,088,891 152,885,441
Consumers | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 141,273,827 137,181,540
Consumers | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 15,316,260 15,279,534
Consumers | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 498,804 424,367
Consumers | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Securities at amortized cost | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Securities at amortized cost | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Securities at amortized cost | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Securities at amortized cost | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Securities at amortized cost | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value 0 0
Financial assets at FVTOCI | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value [3] 0 0
Financial assets at FVTOCI | Stage 1 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value [3] 0 0
Financial assets at FVTOCI | Stage 2 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value [3] 0 0
Financial assets at FVTOCI | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value [3] 0 0
Financial assets at FVTOCI | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Collateral value [3] 0 0
Financial assets    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 513,274,879 460,597,664
Financial assets | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 516,874,541 464,185,393
Financial assets | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (3,628,866) (3,616,813)
Financial assets | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 454,699,644 405,167,125
Financial assets | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 30,792,465 27,242,320
Financial assets | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 13,842,896 13,280,849
Financial assets | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 12,837,364 14,344,066
Financial assets | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 3,564,522 3,003,886
Financial assets | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,137,650 1,147,147
Financial assets | Loans and other financial assets at amortized cost    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 412,495,783 398,471,816
Financial assets | Loans and other financial assets at amortized cost | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 416,084,378 402,048,782
Financial assets | Loans and other financial assets at amortized cost | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (3,588,595) (3,576,966)
Financial assets | Loans and other financial assets at amortized cost | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1]   343,186,708
Financial assets | Loans and other financial assets at amortized cost | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2]   27,086,126
Financial assets | Loans and other financial assets at amortized cost | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1]   13,280,849
Financial assets | Loans and other financial assets at amortized cost | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2]   14,344,066
Financial assets | Loans and other financial assets at amortized cost | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 3,564,522 3,003,886
Financial assets | Loans and other financial assets at amortized cost | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,137,650 1,147,147
Financial assets | Korean treasury and government agencies    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 538,314 229,126
Financial assets | Korean treasury and government agencies | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 539,215 229,755
Financial assets | Korean treasury and government agencies | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (901) (629)
Financial assets | Korean treasury and government agencies | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 539,215 229,733
Financial assets | Korean treasury and government agencies | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 0 22
Financial assets | Korean treasury and government agencies | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 0 0
Financial assets | Korean treasury and government agencies | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 0 0
Financial assets | Korean treasury and government agencies | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Korean treasury and government agencies | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Banks    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 23,189,957 23,593,313
Financial assets | Banks | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 23,213,013 23,615,266
Financial assets | Banks | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (23,056) (21,953)
Financial assets | Banks | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 22,832,170 23,375,096
Financial assets | Banks | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 380,843 115,721
Financial assets | Banks | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 0 88,306
Financial assets | Banks | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 0 0
Financial assets | Banks | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 36,143
Financial assets | Banks | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Corporates    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 188,753,434 179,986,851
Financial assets | Corporates | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 190,999,841 182,252,297
Financial assets | Corporates | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (2,246,407) (2,265,446)
Financial assets | Corporates | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 155,984,903 150,732,338
Financial assets | Corporates | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 23,571,082 19,561,385
Financial assets | Corporates | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 3,177,635 3,130,814
Financial assets | Corporates | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 5,395,186 6,264,461
Financial assets | Corporates | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,733,385 1,416,152
Financial assets | Corporates | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,137,650 1,147,147
Financial assets | General business    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 127,478,147 120,566,965
Financial assets | General business | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 128,996,196 121,976,352
Financial assets | General business | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (1,518,049) (1,409,387)
Financial assets | General business | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 107,006,628 103,495,951
Financial assets | General business | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 14,727,532 11,071,283
Financial assets | General business | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 2,404,812 2,507,705
Financial assets | General business | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 3,754,332 4,093,868
Financial assets | General business | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,102,892 807,545
Financial assets | General business | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Small and medium sized enterprise    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 43,869,848 45,324,338
Financial assets | Small and medium sized enterprise | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 44,326,779 45,910,397
Financial assets | Small and medium sized enterprise | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (456,931) (586,059)
Financial assets | Small and medium sized enterprise | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 33,828,252 35,450,353
Financial assets | Small and medium sized enterprise | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 8,118,497 7,731,142
Financial assets | Small and medium sized enterprise | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 542,006 500,934
Financial assets | Small and medium sized enterprise | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 1,469,338 1,870,087
Financial assets | Small and medium sized enterprise | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 368,686 357,881
Financial assets | Small and medium sized enterprise | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Project financing and others    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 17,405,439 14,095,548
Financial assets | Project financing and others | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 17,676,866 14,365,548
Financial assets | Project financing and others | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (271,427) (270,000)
Financial assets | Project financing and others | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 15,150,023 11,786,034
Financial assets | Project financing and others | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 725,053 758,960
Financial assets | Project financing and others | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 230,817 122,175
Financial assets | Project financing and others | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 171,516 300,506
Financial assets | Project financing and others | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 261,807 250,726
Financial assets | Project financing and others | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,137,650 1,147,147
Financial assets | Consumers    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 200,014,078 194,662,526
Financial assets | Consumers | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 201,332,309 195,951,464
Financial assets | Consumers | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (1,318,231) (1,288,938)
Financial assets | Consumers | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 174,712,890 168,849,541
Financial assets | Consumers | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 6,680,843 7,408,998
Financial assets | Consumers | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 10,665,261 10,061,729
Financial assets | Consumers | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 7,442,178 8,079,605
Financial assets | Consumers | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 1,831,137 1,551,591
Financial assets | Consumers | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Securities at amortized cost    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 18,707,459 19,203,177
Financial assets | Securities at amortized cost | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 18,718,526 19,213,940
Financial assets | Securities at amortized cost | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk (11,067) (10,763)
Financial assets | Securities at amortized cost | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 18,718,526 19,213,940
Financial assets | Securities at amortized cost | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 0 0
Financial assets | Securities at amortized cost | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 0 0
Financial assets | Securities at amortized cost | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2] 0 0
Financial assets | Securities at amortized cost | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Securities at amortized cost | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk 0 0
Financial assets | Financial assets at FVTOCI    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [3] 82,071,637 42,922,671
Financial assets | Financial assets at FVTOCI | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [3] 82,071,637 42,922,671
Financial assets | Financial assets at FVTOCI | Loss allowance    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [3] (29,204) (29,084)
Financial assets | Financial assets at FVTOCI | Stage 1 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 81,911,940 [3] 42,766,477
Financial assets | Financial assets at FVTOCI | Stage 1 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2],[3] 159,697 156,194
Financial assets | Financial assets at FVTOCI | Stage 2 | Above appropriate credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [1] 0 [3] 0
Financial assets | Financial assets at FVTOCI | Stage 2 | Less than a limited credit rating | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [2],[3] 0 0
Financial assets | Financial assets at FVTOCI | Stage 3 | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [3] 0 0
Financial assets | Financial assets at FVTOCI | Credit Impaiment Model | Total    
Disclosure of credit risk exposure [Line Items]    
Maximum exposure to credit risk [3] ₩ 0 ₩ 0
[1] Credit grade of corporates are AAA ~ BBB, and consumers are grades 1 ~ 6.
[2] Credit grade of corporates are BBB- ~ C, and consumers are grades 7 ~ 10.
[3] Financial assets at FVTOCI has been disclosed as the amount before deducting loss allowance because loss allowance does not reduce the carrying amount.