Loans and other financial assets at amortized cost - Changes in allowances for credit losses on loans (Details) - KRW (₩) ₩ in Millions |
12 Months Ended |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
₩ (486,850,601)
|
|
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Ending balance |
(549,165,419)
|
₩ (486,850,601)
|
|
| Loans and receivables, category [member] |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(386,173,471)
|
|
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Ending balance |
(399,842,717)
|
(386,173,471)
|
|
| Loans and receivables, category [member] | Allowance for credit losses | Stage 1 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(1,323,126)
|
(1,242,267)
|
₩ (672,636)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
(155,984)
|
(134,787)
|
(246,530)
|
| Transfer to lifetime expected credit losses |
63,441
|
84,243
|
46,227
|
| Transfer to credit-impaired financial assets |
119,921
|
137,138
|
25,792
|
| Net reversal (provision) of allowance for credit losses |
68
|
(141,399)
|
(406,628)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
47
|
1,465
|
284
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
28,910
|
(27,519)
|
11,224
|
| Changes due to business combinations |
(25,041)
|
|
|
| Ending balance |
(1,291,764)
|
(1,323,126)
|
(1,242,267)
|
| Loans and receivables, category [member] | Allowance for credit losses | Lifetime expected credit losses | Stage 2 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(962,991)
|
(1,014,758)
|
(1,074,137)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
147,172
|
131,909
|
242,995
|
| Transfer to lifetime expected credit losses |
(79,413)
|
(90,222)
|
(56,541)
|
| Transfer to credit-impaired financial assets |
151,911
|
182,616
|
60,230
|
| Net reversal (provision) of allowance for credit losses |
(5,091)
|
(186,036)
|
(209,954)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
5,374
|
8,707
|
931
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
27,700
|
4,793
|
21,718
|
| Changes due to business combinations |
(26,655)
|
|
|
| Ending balance |
(741,993)
|
(962,991)
|
(1,014,758)
|
| Loans and receivables, category [member] | Allowance for credit losses | Lifetime expected credit losses | Stage 3 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(1,064,213)
|
(717,946)
|
(587,353)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
8,812
|
2,878
|
3,535
|
| Transfer to lifetime expected credit losses |
15,972
|
5,979
|
10,314
|
| Transfer to credit-impaired financial assets |
(271,832)
|
(319,754)
|
(86,022)
|
| Net reversal (provision) of allowance for credit losses |
(1,938,456)
|
(1,340,480)
|
(1,194,936)
|
| Recovery |
(119,730)
|
(121,893)
|
(143,392)
|
| Charge-off |
1,563,308
|
882,478
|
906,665
|
| Disposal |
466,043
|
464,761
|
326,522
|
| Interest income from impaired loans |
49,879
|
44,814
|
34,894
|
| Others |
133,615
|
34,950
|
11,827
|
| Changes due to business combinations |
(46,584)
|
|
|
| Ending balance |
(1,203,186)
|
(1,064,213)
|
(717,946)
|
| Loans and receivables, category [member] | Allowance for credit losses | Consumers | Stage 1 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(228,330)
|
(196,845)
|
(147,876)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
(34,745)
|
(27,467)
|
(25,553)
|
| Transfer to lifetime expected credit losses |
17,032
|
14,659
|
10,881
|
| Transfer to credit-impaired financial assets |
11,444
|
7,714
|
7,085
|
| Net reversal (provision) of allowance for credit losses |
22,945
|
(28,741)
|
(41,029)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
23
|
1,442
|
18
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
9,578
|
908
|
(371)
|
| Changes due to business combinations |
(2,536)
|
|
|
| Ending balance |
(204,589)
|
(228,330)
|
(196,845)
|
| Loans and receivables, category [member] | Allowance for credit losses | Consumers | Lifetime expected credit losses | Stage 2 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(148,315)
|
(134,002)
|
(128,089)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
33,583
|
25,983
|
22,750
|
| Transfer to lifetime expected credit losses |
(19,243)
|
(17,333)
|
(12,892)
|
| Transfer to credit-impaired financial assets |
15,959
|
18,054
|
24,577
|
| Net reversal (provision) of allowance for credit losses |
(43,140)
|
(43,686)
|
(41,105)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
1,638
|
2,032
|
419
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
2,239
|
637
|
338
|
| Changes due to business combinations |
(184)
|
|
|
| Ending balance |
(157,463)
|
(148,315)
|
(134,002)
|
| Loans and receivables, category [member] | Allowance for credit losses | Consumers | Lifetime expected credit losses | Stage 3 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(280,125)
|
(220,845)
|
(241,942)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
1,162
|
1,484
|
2,803
|
| Transfer to lifetime expected credit losses |
2,211
|
2,674
|
2,011
|
| Transfer to credit-impaired financial assets |
(27,403)
|
(25,768)
|
(31,662)
|
| Net reversal (provision) of allowance for credit losses |
(374,328)
|
(378,285)
|
(340,607)
|
| Recovery |
(45,352)
|
(61,554)
|
(65,639)
|
| Charge-off |
277,324
|
262,651
|
301,995
|
| Disposal |
92,299
|
75,603
|
114,643
|
| Interest income from impaired loans |
17,062
|
14,629
|
15,553
|
| Others |
34,898
|
49,286
|
22,000
|
| Changes due to business combinations |
(13,979)
|
|
|
| Ending balance |
(316,231)
|
(280,125)
|
(220,845)
|
| Loans and receivables, category [member] | Allowance for credit losses | Corporates | Stage 1 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(971,499)
|
(947,688)
|
(453,621)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
(88,031)
|
(76,352)
|
(190,665)
|
| Transfer to lifetime expected credit losses |
36,659
|
60,633
|
28,452
|
| Transfer to credit-impaired financial assets |
106,321
|
128,228
|
17,959
|
| Net reversal (provision) of allowance for credit losses |
(36,919)
|
(107,916)
|
(361,735)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
24
|
23
|
266
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
19,332
|
(28,427)
|
11,656
|
| Changes due to business combinations |
(22,505)
|
|
|
| Ending balance |
(956,618)
|
(971,499)
|
(947,688)
|
| Loans and receivables, category [member] | Allowance for credit losses | Corporates | Lifetime expected credit losses | Stage 2 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(699,646)
|
(762,644)
|
(818,234)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
80,756
|
75,186
|
190,047
|
| Transfer to lifetime expected credit losses |
(49,487)
|
(63,280)
|
(36,229)
|
| Transfer to credit-impaired financial assets |
132,761
|
162,162
|
33,272
|
| Net reversal (provision) of allowance for credit losses |
52,189
|
(121,901)
|
(153,392)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
3,736
|
6,675
|
512
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
25,461
|
4,156
|
21,380
|
| Changes due to business combinations |
(26,471)
|
|
|
| Ending balance |
(480,701)
|
(699,646)
|
(762,644)
|
| Loans and receivables, category [member] | Allowance for credit losses | Corporates | Lifetime expected credit losses | Stage 3 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(625,921)
|
(363,703)
|
(241,465)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
7,275
|
1,166
|
618
|
| Transfer to lifetime expected credit losses |
12,828
|
2,647
|
7,777
|
| Transfer to credit-impaired financial assets |
(239,082)
|
(290,390)
|
(51,231)
|
| Net reversal (provision) of allowance for credit losses |
(1,096,710)
|
(582,211)
|
(515,711)
|
| Recovery |
(47,208)
|
(36,318)
|
(44,043)
|
| Charge-off |
899,536
|
329,506
|
298,665
|
| Disposal |
300,492
|
297,533
|
172,519
|
| Interest income from impaired loans |
32,817
|
30,185
|
19,341
|
| Others |
98,717
|
(14,336)
|
(10,173)
|
| Changes due to business combinations |
(32,605)
|
|
|
| Ending balance |
(689,861)
|
(625,921)
|
(363,703)
|
| Loans and receivables, category [member] | Allowance for credit losses | Credit card accounts |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(7,295)
|
(89)
|
(27)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
0
|
0
|
0
|
| Transfer to lifetime expected credit losses |
0
|
0
|
0
|
| Transfer to credit-impaired financial assets |
0
|
0
|
0
|
| Net reversal (provision) of allowance for credit losses |
(3,809)
|
(7,663)
|
(1,011)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
622
|
0
|
| Disposal |
7,002
|
837
|
949
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
(5,207)
|
(1,002)
|
0
|
| Changes due to business combinations |
0
|
|
|
| Ending balance |
(9,309)
|
(7,295)
|
(89)
|
| Loans and receivables, category [member] | Allowance for credit losses | Credit card accounts | Stage 1 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(123,297)
|
(97,734)
|
(71,139)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
(33,208)
|
(30,968)
|
(30,312)
|
| Transfer to lifetime expected credit losses |
9,750
|
8,951
|
6,894
|
| Transfer to credit-impaired financial assets |
2,156
|
1,196
|
748
|
| Net reversal (provision) of allowance for credit losses |
14,042
|
(4,742)
|
(3,864)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
0
|
0
|
0
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
0
|
0
|
(61)
|
| Changes due to business combinations |
0
|
|
|
| Ending balance |
(130,557)
|
(123,297)
|
(97,734)
|
| Loans and receivables, category [member] | Allowance for credit losses | Credit card accounts | Lifetime expected credit losses | Stage 2 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(115,030)
|
(118,112)
|
(127,814)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
32,833
|
30,740
|
30,198
|
| Transfer to lifetime expected credit losses |
(10,683)
|
(9,609)
|
(7,420)
|
| Transfer to credit-impaired financial assets |
3,191
|
2,400
|
2,381
|
| Net reversal (provision) of allowance for credit losses |
(14,140)
|
(20,449)
|
(15,457)
|
| Recovery |
0
|
0
|
0
|
| Charge-off |
0
|
0
|
0
|
| Disposal |
0
|
0
|
0
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
0
|
0
|
0
|
| Changes due to business combinations |
0
|
|
|
| Ending balance |
(103,829)
|
(115,030)
|
(118,112)
|
| Loans and receivables, category [member] | Allowance for credit losses | Credit card accounts | Lifetime expected credit losses | Stage 3 |
|
|
|
| Reconciliation of changes in allowance account for credit losses of financial assets [Line Items] |
|
|
|
| Beginning balance |
(158,167)
|
(133,398)
|
(103,946)
|
| Changes in allowance account for credit losses of financial assets [abstract] |
|
|
|
| Transfer to 12-month expected credit losses |
375
|
228
|
114
|
| Transfer to lifetime expected credit losses |
933
|
658
|
526
|
| Transfer to credit-impaired financial assets |
(5,347)
|
(3,596)
|
(3,129)
|
| Net reversal (provision) of allowance for credit losses |
(467,418)
|
(379,984)
|
(338,618)
|
| Recovery |
(27,170)
|
(24,021)
|
(33,710)
|
| Charge-off |
386,448
|
290,321
|
306,005
|
| Disposal |
73,252
|
91,625
|
39,360
|
| Interest income from impaired loans |
0
|
0
|
0
|
| Others |
0
|
0
|
0
|
| Changes due to business combinations |
0
|
|
|
| Ending balance |
₩ (197,094)
|
₩ (158,167)
|
₩ (133,398)
|