Derecognition And Offset Of Financial Instruments - Financial Liabilities Subject To Offset Enforceable Master Netting Agreements Or Similar Agreements (Details) - KRW (₩) ₩ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | ₩ 68,642,579 | ₩ 56,897,896 |
| Gross amounts of recognized financial liabilities set off | 37,619,358 | 32,933,133 |
| Net amounts of consolidate financial liabilities presented | 31,023,221 | 23,964,763 |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 17,274,412 | 21,020,650 |
| Cash collateral pledged and others | 406,310 | 533,052 |
| Net amounts | 13,342,499 | 2,411,061 |
| Derivative liabilities | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | 5,806,793 | 9,256,251 |
| Gross amounts of recognized financial liabilities set off | 0 | 0 |
| Net amounts of consolidate financial liabilities presented | 5,806,793 | ₩ 9,256,251 |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 10,169,723 | |
| Cash collateral pledged and others | 406,310 | |
| Net amounts | ₩ 1,545,214 | |
| Description of rights of setoff associated with financial liabilities subject to enforceable master netting arrangement or similar agreement | The Group possesses the derivative assets, derivative liabilities, receivable spot exchange and payable spot exchange that do not satisfy the offsetting criteria of IAS 32 but provide the Group under the circumstances of the trading party’s default, insolvency or bankruptcy, with the right of offsetting. Items such as cash collateral cannot satisfy the offsetting criteria of IAS 32, but in accordance with the collateral arrangements and under the circumstances of the trading party’s default, insolvency or bankruptcy, the net amount of derivative assets and derivative liabilities, receivable spot exchange and payable spot exchange can be offset. | The Group possesses the derivative assets, derivative liabilities, receivable spot exchange and payable spot exchange that do not satisfy the offsetting criteria of IAS 32 but provide the Group under the circumstances of the trading party’s default, insolvency or bankruptcy, with the right of offsetting. Items such as cash collateral cannot satisfy the offsetting criteria of IAS 32, but in accordance with the collateral arrangements and under the circumstances of the trading party’s default, insolvency or bankruptcy, the net amount of derivative assets and derivative liabilities, receivable spot exchange and payable spot exchange can be offset. |
| Equity-linked securities in short position | ||
| Related amounts not set off in the consolidated statement of financial position | ||
| Description of rights of setoff associated with financial liabilities subject to enforceable master netting arrangement or similar agreement | The Group possesses the derivative assets, derivative liabilities, receivable spot exchange and payable spot exchange that do not satisfy the offsetting criteria of IAS 32 but provide the Group under the circumstances of the trading party’s default, insolvency or bankruptcy, with the right of offsetting. Items such as cash collateral cannot satisfy the offsetting criteria of IAS 32, but in accordance with the collateral arrangements and under the circumstances of the trading party’s default, insolvency or bankruptcy, the net amount of derivative assets and derivative liabilities, receivable spot exchange and payable spot exchange can be offset. | The Group possesses the derivative assets, derivative liabilities, receivable spot exchange and payable spot exchange that do not satisfy the offsetting criteria of IAS 32 but provide the Group under the circumstances of the trading party’s default, insolvency or bankruptcy, with the right of offsetting. Items such as cash collateral cannot satisfy the offsetting criteria of IAS 32, but in accordance with the collateral arrangements and under the circumstances of the trading party’s default, insolvency or bankruptcy, the net amount of derivative assets and derivative liabilities, receivable spot exchange and payable spot exchange can be offset. |
| Payable spot exchange | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | ₩ 6,314,454 | ₩ 5,585,272 |
| Gross amounts of recognized financial liabilities set off | 0 | 0 |
| Net amounts of consolidate financial liabilities presented | ₩ 6,314,454 | ₩ 5,585,272 |
| Related amounts not set off in the consolidated statement of financial position | ||
| Description of rights of setoff associated with financial liabilities subject to enforceable master netting arrangement or similar agreement | The Group possesses the derivative assets, derivative liabilities, receivable spot exchange and payable spot exchange that do not satisfy the offsetting criteria of IAS 32 but provide the Group under the circumstances of the trading party’s default, insolvency or bankruptcy, with the right of offsetting. Items such as cash collateral cannot satisfy the offsetting criteria of IAS 32, but in accordance with the collateral arrangements and under the circumstances of the trading party’s default, insolvency or bankruptcy, the net amount of derivative assets and derivative liabilities, receivable spot exchange and payable spot exchange can be offset. | The Group possesses the derivative assets, derivative liabilities, receivable spot exchange and payable spot exchange that do not satisfy the offsetting criteria of IAS 32 but provide the Group under the circumstances of the trading party’s default, insolvency or bankruptcy, with the right of offsetting. Items such as cash collateral cannot satisfy the offsetting criteria of IAS 32, but in accordance with the collateral arrangements and under the circumstances of the trading party’s default, insolvency or bankruptcy, the net amount of derivative assets and derivative liabilities, receivable spot exchange and payable spot exchange can be offset. |
| Derivative liabilities and Payable spot exchange | ||
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | ₩ 11,899,555 | |
| Cash collateral pledged and others | 533,052 | |
| Net amounts | 2,408,916 | |
| Bonds sold under repurchase agreements | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | ₩ 6,678,468 | 1,530,767 |
| Gross amounts of recognized financial liabilities set off | 0 | 0 |
| Net amounts of consolidate financial liabilities presented | 6,678,468 | 1,530,767 |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 6,678,468 | 1,530,767 |
| Cash collateral pledged and others | 0 | 0 |
| Net amounts | ₩ 0 | ₩ 0 |
| Description of rights of setoff associated with financial liabilities subject to enforceable master netting arrangement or similar agreement | The Group has entered into a sale and repurchase agreement and accounted it as a collateralized borrowing. The Group has also entered into a purchase and resale agreement and accounted it as a secured loan. The Group under the repurchase agreements has an offsetting right only upon the counterparty’s default, insolvency or bankruptcy; thus, the repurchase agreements are applied by the TBMA/ISMA Global Master Repurchase Agreement, which does not satisfy the offsetting criteria of IAS 32. The Group disclosed bonds sold under repurchase agreements as borrowings and bonds purchased under resale agreements as loan at amortized cost and other financial assets. In securities lending transactions, offsetting agreements are similarly executed through analogous arrangements, and the amounts of borrowed securities presented in the consolidated financial statements as of December 31, 2024 and 2025, are 182,478 million Won and 426,221 million Won, respectively. These amounts may be offset against bonds provided as collateral. | The Group has entered into a sale and repurchase agreement and accounted it as a collateralized borrowing. The Group has also entered into a purchase and resale agreement and accounted it as a secured loan. The Group under the repurchase agreements has an offsetting right only upon the counterparty’s default, insolvency or bankruptcy; thus, the repurchase agreements are applied by the TBMA/ISMA Global Master Repurchase Agreement, which does not satisfy the offsetting criteria of IAS 32. The Group disclosed bonds sold under repurchase agreements as borrowings and bonds purchased under resale agreements as loan at amortized cost and other financial assets. In securities lending transactions, offsetting agreements are similarly executed through analogous arrangements, and the amounts of borrowed securities presented in the consolidated financial statements as of December 31, 2024 and 2025, are 182,478 million Won and 426,221 million Won, respectively. These amounts may be offset against bonds provided as collateral. |
| Unpaid domestic exchange settlement credits | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | ₩ 40,525,606 | |
| Gross amounts of recognized financial liabilities set off | 32,933,133 | |
| Net amounts of consolidate financial liabilities presented | 7,592,473 | |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 7,590,328 | |
| Cash collateral pledged and others | 0 | |
| Net amounts | ₩ 2,145 | |
| Securities sold | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | ₩ 426,221 | |
| Gross amounts of recognized financial liabilities set off | 0 | |
| Net amounts of consolidate financial liabilities presented | 426,221 | |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 426,221 | |
| Cash collateral pledged and others | 0 | |
| Net amounts | 0 | |
| Domestic exchange settlement credits | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | 49,356,200 | |
| Gross amounts of recognized financial liabilities set off | 37,606,420 | |
| Net amounts of consolidate financial liabilities presented | 11,749,780 | |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 0 | |
| Cash collateral pledged and others | 0 | |
| Net amounts | 11,749,780 | |
| Accounts Payable | ||
| Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract] | ||
| Gross amounts of recognized financial liabilities | 60,443 | |
| Gross amounts of recognized financial liabilities set off | 12,938 | |
| Net amounts of consolidate financial liabilities presented | 47,505 | |
| Related amounts not set off in the consolidated statement of financial position | ||
| Netting agreements and others | 0 | |
| Cash collateral pledged and others | 0 | |
| Net amounts | ₩ 47,505 | |