v3.26.1
Reinsurance Contracts - Summary Of Effect Of Reinsurance Contracts Initially Recognised (Details)
₩ in Millions
12 Months Ended
Dec. 31, 2025
KRW (₩)
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Profitable group of contracts ₩ 8,174 [1]
Initial recognition of new reinsurance contracts - Sub-total 8,174
The estimates of the present value of future cash outflows  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Profitable group of contracts (268,857) [1]
Initial recognition of new reinsurance contracts - Sub-total (4,815,141)
Risk adjustment for non-financial risk [member]  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Profitable group of contracts 3,247 [1]
Initial recognition of new reinsurance contracts - Sub-total 49,342
Contractual Service Margin  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Profitable group of contracts 0 [1]
Initial recognition of new reinsurance contracts - Sub-total 447,042
Loss recovery component at initial recognition  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Profitable group of contracts 8,174 [1]
Initial recognition of new reinsurance contracts - Sub-total 8,174
Reinsurance contracts held [member]  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Non-profitable group of contracts 0 [2]
Initial recognition of new reinsurance contracts - Profitable group of contracts 152 [2]
Initial recognition of new reinsurance contracts - Sub-total 152 [2]
Business Combination 450,097
Total 450,249
Reinsurance contracts held [member] | The estimates of the present value of future cash outflows  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Non-profitable group of contracts (558) [2]
Initial recognition of new reinsurance contracts - Profitable group of contracts (3,265) [2]
Initial recognition of new reinsurance contracts - Sub-total (3,823) [2]
Business Combination (2,665,609)
Total (2,669,432)
Reinsurance contracts held [member] | The estimates of the present value of future cash inflows  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Non-profitable group of contracts 480 [2]
Initial recognition of new reinsurance contracts - Profitable group of contracts 2,771 [2]
Initial recognition of new reinsurance contracts - Sub-total 3,251 [2]
Business Combination 2,846,933
Total 2,850,184
Reinsurance contracts held [member] | Risk adjustment for non-financial risk [member]  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Non-profitable group of contracts 5 [2]
Initial recognition of new reinsurance contracts - Profitable group of contracts 33 [2]
Initial recognition of new reinsurance contracts - Sub-total 38 [2]
Business Combination 38,190
Total 38,228
Reinsurance contracts held [member] | Contractual Service Margin  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Non-profitable group of contracts 73 [2]
Initial recognition of new reinsurance contracts - Profitable group of contracts 613 [2]
Initial recognition of new reinsurance contracts - Sub-total 686 [2]
Business Combination 230,583
Total 231,269
Reinsurance contracts held [member] | Loss recovery component at initial recognition  
Reinsurance Contracts Initially Recognized - Other than Net-Income Contract Groups  
Initial recognition of new reinsurance contracts - Non-profitable group of contracts 0 [2]
Initial recognition of new reinsurance contracts - Profitable group of contracts 152 [2]
Initial recognition of new reinsurance contracts - Sub-total 152 [2]
Business Combination 0
Total ₩ 152
[1] There are no insurance contracts acquired in a transfer.
[2] There are no reinsurance contracts acquired in a transfer.