General - Consolidated subsidiaries and their financial information (Details) - KRW (₩) ₩ in Millions |
12 Months Ended | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori bank and Woori Investment Securities Co., Ltd. | Woori bank and Woori Investment Securities Co., Ltd. | ||||||||||||||||||
| Subsidiaries | Woori Global Development Infrastructure Synergy Company Private Placement Investment Trust No. 1 | [2] | Woori Global Secondary Private Placement Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 99.90% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns.Companies are excluded from the consolidation as of December 31, 2025. | ||||||||||||||||||||
| Woori bank | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Bank | Woori Bank | |||||||||||||||||||
| Main business | Bank | Bank | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 502,846,197 | ₩ 485,888,941 | |||||||||||||||||||
| Liabilities | 473,158,744 | 456,944,053 | |||||||||||||||||||
| Operating revenue | 33,077,179 | 41,881,143 | |||||||||||||||||||
| Net income (loss) attributable to owners | 2,589,646 | 3,039,372 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 2,440,011 | ₩ 3,381,799 | |||||||||||||||||||
| Tongyang Life Insurance Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | [3] | Tongyang Life Insurance Co., Ltd. | Tongyang Life Insurance Co., Ltd. | ||||||||||||||||||
| Main business | Life insurance | Life insurance | |||||||||||||||||||
| Percentage of ownership (%) | 77.90% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 35,444,959 | ||||||||||||||||||||
| Liabilities | 33,351,243 | ||||||||||||||||||||
| Operating revenue | 2,127,821 | ||||||||||||||||||||
| Net income (loss) attributable to owners | 43,609 | ||||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 307,187 | ||||||||||||||||||||
| Woori Card Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Card Co., Ltd. | Woori Card Co., Ltd. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 17,512,741 | ₩ 16,613,482 | |||||||||||||||||||
| Liabilities | 14,620,417 | 13,828,816 | |||||||||||||||||||
| Operating revenue | 2,268,801 | 2,293,739 | |||||||||||||||||||
| Net income (loss) attributable to owners | 149,953 | 147,179 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 154,441 | ₩ 160,121 | |||||||||||||||||||
| Woori Financial Capital Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Financial Capital Co., Ltd. | Woori Financial Capital Co., Ltd. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 12,361,366 | ₩ 12,770,681 | |||||||||||||||||||
| Liabilities | 10,523,678 | 11,045,686 | |||||||||||||||||||
| Operating revenue | 1,902,863 | 1,759,842 | |||||||||||||||||||
| Net income (loss) attributable to owners | 148,727 | 141,419 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 149,872 | ₩ 138,826 | |||||||||||||||||||
| Woori Investment Securities Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | [3] | Woori Investment Securities Co., Ltd. | Woori Investment Securities Co., Ltd. | ||||||||||||||||||
| Main business | Securities brokerage | Securities brokerage | |||||||||||||||||||
| Percentage of ownership (%) | 99.90% | 99.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 9,706,286 | ₩ 7,186,431 | |||||||||||||||||||
| Liabilities | 8,504,657 | 6,041,109 | |||||||||||||||||||
| Operating revenue | 519,130 | 430,599 | |||||||||||||||||||
| Net income (loss) attributable to owners | 27,444 | 2,552 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 55,351 | ₩ 6,279 | |||||||||||||||||||
| ABL Life Insurance Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | [3] | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | ||||||||||||||||||
| Main business | Life insurance | Life insurance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 19,609,549 | ||||||||||||||||||||
| Liabilities | 18,928,173 | ||||||||||||||||||||
| Operating revenue | 1,566,440 | ||||||||||||||||||||
| Net income (loss) attributable to owners | 55,984 | ||||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 109,611 | ||||||||||||||||||||
| Woori Asset Trust Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Asset Trust Co., Ltd | Woori Asset Trust Co., Ltd | |||||||||||||||||||
| Main business | Real estate trust | Real estate trust | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 99.60% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 302,661 | ₩ 499,279 | |||||||||||||||||||
| Liabilities | 63,308 | 39,470 | |||||||||||||||||||
| Operating revenue | 76,499 | 107,154 | |||||||||||||||||||
| Net income (loss) attributable to owners | (220,617) | 1,803 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ (220,455) | ₩ 1,609 | |||||||||||||||||||
| Woori Savings Bank | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Savings Bank | Woori Savings Bank | |||||||||||||||||||
| Main business | Mutual saving bank | Mutual saving bank | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 2,061,407 | ₩ 1,874,624 | |||||||||||||||||||
| Liabilities | 1,853,571 | 1,680,378 | |||||||||||||||||||
| Operating revenue | 134,632 | 136,417 | |||||||||||||||||||
| Net income (loss) attributable to owners | 14,719 | (85,879) | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 13,590 | ₩ (84,907) | |||||||||||||||||||
| Woori Financial F&I Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Financial F&I Co., Ltd. | Woori Financial F&I Co., Ltd. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 1,271,613 | ₩ 1,251,854 | |||||||||||||||||||
| Liabilities | 930,542 | 914,388 | |||||||||||||||||||
| Operating revenue | 75,360 | 90,373 | |||||||||||||||||||
| Net income (loss) attributable to owners | 3,594 | 13,306 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 3,604 | ₩ 13,199 | |||||||||||||||||||
| Woori Asset Management Corp. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | [3] | Woori Asset Management Corp. | Woori Asset Management Corp. | ||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 204,188 | ₩ 203,232 | |||||||||||||||||||
| Liabilities | 24,860 | 39,077 | |||||||||||||||||||
| Operating revenue | 64,547 | 57,562 | |||||||||||||||||||
| Net income (loss) attributable to owners | 18,741 | 11,801 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 18,713 | ₩ 11,870 | |||||||||||||||||||
| Woori Venture Partners Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Venture Partners | Woori Venture Partners | |||||||||||||||||||
| Main business | Other financial services | Other financial services | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 382,040 | ₩ 350,066 | |||||||||||||||||||
| Liabilities | 28,151 | 15,060 | |||||||||||||||||||
| Operating revenue | 39,162 | 62,261 | |||||||||||||||||||
| Net income (loss) attributable to owners | 26,207 | 36,786 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 26,183 | ₩ 37,213 | |||||||||||||||||||
| Woori Private Equity Asset Management Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Private Equity Asset Management Co., Ltd. | Woori Private Equity Asset Management Co., Ltd. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 106,003 | ₩ 101,164 | |||||||||||||||||||
| Liabilities | 6,161 | 5,589 | |||||||||||||||||||
| Operating revenue | 12,380 | 9,974 | |||||||||||||||||||
| Net income (loss) attributable to owners | 4,071 | 4,148 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 4,267 | ₩ 3,987 | |||||||||||||||||||
| Woori Credit Information Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Credit Information Co., Ltd. | Woori Credit Information Co., Ltd. | |||||||||||||||||||
| Main business | Credit information | Credit information | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 45,455 | ₩ 43,985 | |||||||||||||||||||
| Liabilities | 7,581 | 6,555 | |||||||||||||||||||
| Operating revenue | 37,622 | 42,796 | |||||||||||||||||||
| Net income (loss) attributable to owners | 868 | 1,614 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 928 | ₩ 1,252 | |||||||||||||||||||
| Woori Fund Service Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Fund Service Co., Ltd. | Woori Fund Service Co., Ltd. | |||||||||||||||||||
| Main business | Financial support service business | Financial support service business | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 33,882 | ₩ 31,154 | |||||||||||||||||||
| Liabilities | 2,665 | 2,799 | |||||||||||||||||||
| Operating revenue | 18,422 | 18,069 | |||||||||||||||||||
| Net income (loss) attributable to owners | 4,255 | 4,646 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 4,255 | ₩ 4,646 | |||||||||||||||||||
| Woori FIS Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori FIS Co., Ltd. | Woori FIS Co., Ltd. | |||||||||||||||||||
| Main business | System software development & maintenance | System software development & maintenance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 52,554 | ₩ 58,868 | |||||||||||||||||||
| Liabilities | 6,015 | 12,094 | |||||||||||||||||||
| Operating revenue | 173,875 | 175,624 | |||||||||||||||||||
| Net income (loss) attributable to owners | 198 | (1,709) | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ (234) | ₩ (1,485) | |||||||||||||||||||
| Woori Finance Research Institute Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial Group Inc. | Woori Financial Group Inc. | |||||||||||||||||||
| Subsidiaries | Woori Finance Research Institute Co., Ltd. | Woori Finance Research Institute Co., Ltd. | |||||||||||||||||||
| Main business | Other service business | Other service business | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Disclosure of condensed financial information of significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Assets | ₩ 7,469 | ₩ 7,663 | |||||||||||||||||||
| Liabilities | 3,550 | 3,892 | |||||||||||||||||||
| Operating revenue | 9,972 | 9,022 | |||||||||||||||||||
| Net income (loss) attributable to owners | 126 | 59 | |||||||||||||||||||
| Comprehensive income (loss) attributable to owners | ₩ 148 | ₩ (70) | |||||||||||||||||||
| Woori America Bank | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori America Bank | Woori America Bank | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | America | America | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Global Markets Asia Limited | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Global Markets Asia Limited | Woori Global Markets Asia Limited | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Hong Kong | Hong Kong | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Bank China Limited | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Bank China Limited | Woori Bank China Limited | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | China | China | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| AO Woori Bank | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [4] | AO Woori Bank | AO Woori Bank | ||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Russia | Russia | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| PT Bank Woori Saudara Indonesia 1906 Tbk | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | PT Bank Woori Saudara Indonesia 1906 Tbk | PT Bank Woori Saudara Indonesia 1906 Tbk | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 90.80% | 90.80% | |||||||||||||||||||
| Location | Indonesia | Indonesia | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Banco Woori Bank do Brasil S.A. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Banco Woori Bank do Brasil S.A. | Banco Woori Bank do Brasil S.A. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Brazil | Brazil | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Korea BTL Infrastructure Fund | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Korea BTL Infrastructure Fund | Korea BTL Infrastructure Fund | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 99.90% | 99.90% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Finance Myanmar Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Finance Myanmar Co., Ltd. | Woori Finance Myanmar Co., Ltd. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Myanmar | Myanmar | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Wealth Development Bank | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Wealth Development Bank | Wealth Development Bank | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 51.00% | 51.00% | |||||||||||||||||||
| Location | Philippines | Philippines | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Bank Vietnam Limited | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Bank Vietnam Limited | Woori Bank Vietnam Limited | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Vietnam | Vietnam | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Bank (Cambodia) PLC | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Bank (Cambodia) PLC | Woori Bank (Cambodia) PLC | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Cambodia | Cambodia | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Bank Europe | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Bank Europe | Woori Bank Europe | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Germany | Germany | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| KAMCO Value Recreation First Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | KAMCO Value Recreation First Securitization Specialty Co., Ltd. | KAMCO Value Recreation First Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 15.00% | 15.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Jeonju Iwon Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Jeonju Iwon Ltd. | Jeonju Iwon Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Wonju I one Inc. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Wonju I one Inc. | Wonju I one Inc. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Heitz Third Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Heitz Third Co., Ltd. | Heitz Third Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori hansoop 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori hansoop 1st Co., Ltd. | Woori hansoop 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori QS 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori QS 1st Co., Ltd. | Woori QS 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Dream 2nd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori Dream 2nd Co., Ltd. | Woori Dream 2nd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori K 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori K 1st Co., Ltd. | Woori K 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Display 3rd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori Display 3rd Co., Ltd. | Woori Display 3rd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Quantum Jump the 2nd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Quantum Jump the 2nd Co., Ltd. | Quantum Jump the 2nd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HW 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HW 1st Co., Ltd. | Woori HW 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Dream 3rd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori Dream 3rd Co., Ltd. | Woori Dream 3rd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori SJS 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori SJS 1st Co., Ltd. | Woori SJS 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| SPG the 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | SPG the 1st Co., Ltd. | SPG the 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori-HWC 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori-HWC 1st Co., Ltd. | Woori-HWC 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori HC 3rd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HC 3rd Co., Ltd. | Woori HC 3rd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Park I 1st co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori Park I 1st co., Ltd | Woori Park I 1st co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HC 4th Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HC 4th Co., Ltd. | Woori HC 4th Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori SKR 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori SKR 1st Co., Ltd. | Woori SKR 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori H chemical 1st Co.,Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori H chemical 1st Co., Ltd | Woori H chemical 1st Co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| HE the 1st Co.,Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | HE the 1st Co., Ltd. | HE the 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Hub The 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori Hub The 1st Co., Ltd. | Woori Hub The 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori K The 3rd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori K The 3rd Co., Ltd. | Woori K The 3rd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori KF 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori KF 1st Co., Ltd. | Woori KF 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori L Yongsan 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori L Yongsan 1st Co., Ltd. | Woori L Yongsan 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori HC 5th Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HC 5th Co., Ltd. | Woori HC 5th Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori Lotte Dongtan 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori Lotte Dongtan 1st Co., Ltd. | Woori Lotte Dongtan 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HC 6th Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori HC 6th Co., Ltd. | Woori HC 6th Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HO 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori HO 1st Co., Ltd. | Woori HO 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori ESG 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori ESG 1st Co., Ltd. | Woori ESG 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori Osiria 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori Osiria 1st Co., Ltd. | Woori Osiria 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Gangnam Landmark 2nd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Gangnam Landmark 2nd Co., Ltd | Gangnam Landmark 2nd Co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HP the 1st co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HP the 1st Co., Ltd. | Woori HP the 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori KF 2nd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori KF 2nd Co., Ltd. | Woori KF 2nd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori ST 1st co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori ST 1st Co., Ltd. | Woori ST 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HD 1st co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori HD 1st co., Ltd. | Woori HD 1st co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Woori HW 2nd co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HW 2nd co., Ltd. | Woori HW 2nd co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Mirae 1st co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori Mirae 1st co., Ltd. | Woori Mirae 1st co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2025. | |||||||||||||||||||
| Heungkuk Global Private Placement Investment Trust No. 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | Heungkuk Global Private Placement Investment Trust No. 1 | Heungkuk Global Private Placement Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 98.80% | 98.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| AI Partners UK Water Supply Private Placement Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | AI Partners UK Water Supply Private Placement Investment Trust No. 2 | AI Partners UK Water Supply Private Placement Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 97.30% | 97.30% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Multi Asset Global Real Estate Investment Trust No. 5-2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| IGIS Australia Investment Trust No. 209-1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | IGIS Australia Investment Trust No. 209-1 | IGIS Australia Investment Trust No. 209-1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 99.40% | 99.40% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Kiwoom Harmony Private Placement Investment Trust No. 2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2],[6] | Kiwoom Harmony Private Placement Investment Trust No. 2 | Kiwoom Harmony Private Placement Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 97.30% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | |||||||||||||||||||
| Kiwoom Harmony Private Placement Investment Trust No. 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | Kiwoom Harmony Private Placement Investment Trust No. 1 | Kiwoom Harmony Private Placement Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 97.70% | 97.40% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Kiwoom Harmony Private Placement Investment Trust No. 4 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | Kiwoom Harmony Private Placement Investment Trust No. 4 | Kiwoom Harmony Private Placement Investment Trust No. 4 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 96.20% | 96.20% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Principal Guaranteed Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [7] | Principal Guaranteed Trust | Principal Guaranteed Trust | ||||||||||||||||||
| Main business | Trust | Trust | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Principal and Interest Guaranteed Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [7] | Principal and Interest Guaranteed Trust | Principal and Interest Guaranteed Trust | ||||||||||||||||||
| Main business | Trust | Trust | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| MAGI No.5 LuxCo S.a.r.l. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Mirae Asset Multi Overseas Real Estate General Private Investment Trust No. 5-2 | Mirae Asset Multi Overseas Real Estate General Private Investment Trust No. 5-2 | |||||||||||||||||||
| Subsidiaries | MAGI No. 5 LuxCo S.a.r.l. | MAGI No. 5 LuxCo S.a.r.l. | |||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 54.60% | 54.60% | |||||||||||||||||||
| Location | Luxembourg | Luxembourg | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| ADP 16 Brussels | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | MAGI No.5 LuxCo S.a.r.l. | MAGI No.5 LuxCo S.a.r.l. | |||||||||||||||||||
| Subsidiaries | ADP 16 Brussels | ADP 16 Brussels | |||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Belgium | Belgium | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| TUTU Finance –WCI Myanmar Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | TUTU Finance – WCI Myanmar Co., Ltd. | TUTU Finance – WCI Myanmar Co., Ltd. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Myanmar | Myanmar | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| PT Woori Finance Indonesia Tbk. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | PT Woori Finance Indonesia Tbk. | PT Woori Finance Indonesia Tbk. | |||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 84.50% | 84.50% | |||||||||||||||||||
| Location | Indonesia | Indonesia | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Card 2021-1 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori Card 2021-1 Asset Securitization Specialty Co.,Ltd. | Woori Card 2021-1 Asset Securitization Specialty Co.,Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.50% | ||||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | |||||||||||||||||||
| Woori Card 2022-1 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5],[6] | Woori Card 2022-1 Asset Securitization Specialty Co.,Ltd. | Woori Card 2022-1 Asset Securitization Specialty Co.,Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.50% | ||||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | |||||||||||||||||||
| Woori Card 2022-2 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Woori Card 2022-2 Asset Securitization Specialty Co., Ltd. | Woori Card 2022-2 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.50% | 0.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Card 2023-1 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Woori Card 2023-1 Asset Securitization Specialty Co., Ltd. | Woori Card 2023-1 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.50% | 0.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Card 2023-2 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Woori Card 2023-2 Asset Securitization Specialty Co., Ltd. | Woori Card 2023-2 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.50% | 0.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Specified Money Market Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Financial Capital Co., Ltd. | Held by Woori Financial Capital Co., Ltd. | |||||||||||||||||||
| Subsidiaries | Specified Money Market Trust | Specified Money Market Trust | |||||||||||||||||||
| Main business | Trust | Trust | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Seari Second Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Seari Second Securitization Specialty Co., Ltd. | Seari Second Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Namjong 1st Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Namjong 1st Securitization Specialty Co., Ltd. | Namjong 1st Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Bukgeum First Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Bukgeum First Securitization Specialty Co., Ltd. | Bukgeum First Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Bukgeum Second Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Bukgeum Second Securitization Specialty Co., Ltd. | Bukgeum Second Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WS1909 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WS1909 Securitization Specialty Co., Ltd. | WS1909 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WS2003 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WS2003 Securitization Specialty Co., Ltd. | WS2003 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WS2006 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WS2006 Securitization Specialty Co., Ltd. | WS2006 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WH2103 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WH2103 Securitization Specialty Co., Ltd. | WH2103 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WN2103 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WN2103 Securitization Specialty Co., Ltd. | WN2103 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WH2106 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WH2106 Securitization Specialty Co., Ltd. | WH2106 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori China Convertible Bond Hedging feeder Investment Trust H (debt-oriented hybrid) | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori China Convertible Bond Hedging feeder Investment Trust H (debt-oriented hybrid) | Woori China Convertible Bond Hedging feeder Investment Trust H (debt-oriented hybrid) | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 89.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Together TDF 2040 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori Together TDF 2040 | Woori Together TDF 2040 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 34.30% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Together TDF 2045 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori Together TDF 2045 | Woori Together TDF 2045 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 56.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Together TDF 2050 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori Together TDF 2050 | Woori Together TDF 2050 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 31.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Bank and Woori Financial Capital Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank and Woori Financial Capital Co., Ltd. | Woori Bank and Woori Financial Capital Co., Ltd. | ||||||||||||||||||
| Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 and Woori Japan General Type Private Real Estate Feeder Investment Trust No. 21 [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 and Woori Japan General Type Private Real Estate Feeder Investment Trust No. 2-1 | Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 and Woori Japan General Type Private Real Estate Feeder Investment Trust No. 2-1 | ||||||||||||||||||
| Woori Bank and Woori Private Equity Asset Management Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank and Woori Private Equity Asset Management Co., Ltd. | Woori Bank and Woori Private Equity Asset Management Co., Ltd. | ||||||||||||||||||
| Woori Financial Capital Co Ltd and Woori Investment Securities Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Financial Capital Co., Ltd. and Woori Investment Securities Co., Ltd | Woori Financial Capital Co., Ltd. and Woori Investment Securities Co., Ltd | ||||||||||||||||||
| Woori Japan Private Placement Real Estate Feeder Investment Trust No 11 and Woori Japan Investment Trust No12 [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Japan Private Placement Real Estate Feeder Investment Trust No. 1-1 and Woori Japan Investment Trust No. 1-2 | Woori Japan Private Placement Real Estate Feeder Investment Trust No. 1-1 and Woori Japan Investment Trust No. 1-2 | ||||||||||||||||||
| Woori Future CoGrowth Hightech Strategic Industries Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[8] | Woori Future Co-Growth High-tech Strategic Industries Private Investment Trust | Woori Future Co-Growth High-tech Strategic Industries Private Investment Trust | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2025 | Dec. 31, 2024 | ||||||||||||||||||
| Woori Bank, Woori Card Co., Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd., Tongyang Life Insurance Co., Ltd., ABL Life Insurance Co., Ltd. and Woori Asset Management Co., Ltd [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Card Co., Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd., Tongyang Life Insurance Co., Ltd., ABL Life Insurance Co., Ltd. and Woori Asset Management Co., Ltd. | Woori Bank, Woori Card Co., Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd., Tongyang Life Insurance Co., Ltd., ABL Life Insurance Co., Ltd. and Woori Asset Management Co., Ltd. | ||||||||||||||||||
| Woori Bank, Woori Financial Capital Co., Ltd. and Tongyang Life Insurance Co., Ltd [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd. and Tongyang Life Insurance Co., Ltd | Woori Bank, Woori Financial Capital Co., Ltd. and Tongyang Life Insurance Co., Ltd | ||||||||||||||||||
| Woori Bank, Woori Card Co., Woori Investment Securities Co., Ltd. and Woori Financial Capital Co., Ltd [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Card Co., Woori Investment Securities Co., Ltd. and Woori Financial Capital Co., Ltd | Woori Bank, Woori Card Co., Woori Investment Securities Co., Ltd. and Woori Financial Capital Co., Ltd | ||||||||||||||||||
| Woori Bank and Woori Asset Management Co., Ltd. [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank and Woori Asset Management Co., Ltd. | Woori Bank and Woori Asset Management Co., Ltd. | ||||||||||||||||||
| Woori NewGen Energy ABL Private Investment Trust [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[8] | Woori NewGen Energy ABL Private Investment Trust( | Woori NewGen Energy ABL Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 33.30% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori BaranNamyang Expressway Private Special Asset Investment Trust( [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Woori Baran-Namyang Expressway Private Special Asset Investment Trust | Woori Baran-Namyang Expressway Private Special Asset Investment Trust | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 47.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Bank, Woori Financial Capital Co., Ltd., and Woori Investment Securities Co., Ltd [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd., and Woori Investment Securities Co., Ltd | Woori Bank, Woori Financial Capital Co., Ltd., and Woori Investment Securities Co., Ltd | ||||||||||||||||||
| Woori Following Foreigners Securities SubInvestment Trust Equity ClassCF [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Woori Following Foreigners Securities Sub-Investment Trust [Equity]Class C-F | ||||||||||||||||||||
| Main business | Securities investment and others | ||||||||||||||||||||
| Percentage of ownership (%) | 75.60% | 0.00% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Bridge Beta1st Co., Ltd [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Bridge Beta 1st Co., Ltd | Bridge Beta 1st Co., Ltd | |||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Kiwoom Europe Infra A.I. Private Type Investment Trust III [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | Kiwoom Europe Infra A.I. Private Type Investment Trust III | Kiwoom Europe Infra A.I. Private Type Investment Trust III | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Kookmin Bank Acting as Trustee of Kiwoom Moderato Private Securities Investment Trust I [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | Kookmin Bank Acting as Trustee of Kiwoom Moderato Private Securities Investment Trust I | Kookmin Bank Acting as Trustee of Kiwoom Moderato Private Securities Investment Trust I | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| WiBee Smile AP 1st Co., Ltd [Member] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | WiBee Smile AP 1st Co., Ltd | WiBee Smile AP 1st Co., Ltd | |||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WiBee Retail 1st Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | WiBee Retail 1st Co., Ltd | WiBee Retail 1st Co., Ltd | |||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Partners General Type Private Investment Trust No. 4 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Woori Partners General Type Private Investment Trust No. 4 | ||||||||||||||||||||
| Main business | Securities investment and others | ||||||||||||||||||||
| Percentage of ownership (%) | 99.00% | 0.00% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORI NC 1ST CO., LTD | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI NC 1ST CO., LTD. | |||||||||||||||||||
| Main business | Asset securitization | ||||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Tongyang Life Financial Service Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Tongyang Life Insurance Co., Ltd. | Held by Tongyang Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | Tongyang Life Financial Service Co., Ltd | Tongyang Life Financial Service Co., Ltd | |||||||||||||||||||
| Main business | Insurance agents and brokers | Insurance agents and brokers | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Card 2024-1 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Card Co., Ltd. | Held by Woori Card Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | Woori Card 2024-1 Asset Securitization Specialty Co., Ltd. | Woori Card 2024-1 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.50% | 0.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Senior Loan Private Placement Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Senior Loan Private Placement Investment Trust No. 1 | Woori Senior Loan Private Placement Investment Trust No. 1 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | [2] | 32.00% | 0.00% | ||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2025 | Dec. 31, 2024 | ||||||||||||||||||
| Woori FG DINNO Lab Fund 1st | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori FG DINNO Lab Fund 1st | Woori FG DINNO Lab Fund 1st | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | Dec. 31, 2024 | ||||||||||||||||||
| Woori FG DINNO Lab Fund 2nd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori FG DINNO Lab Fund 2nd | Woori FG DINNO Lab Fund 2nd | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2025 | Dec. 31, 2024 | ||||||||||||||||||
| Woori Real Estate Financial Stabilization General Private Investment Trust No. 2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[8] | Woori Real Estate Financial Stabilization General Private Investment Trust No. 2 | Woori Real Estate Financial Stabilization General Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2025 | Dec. 31, 2024 | ||||||||||||||||||
| Woori Renewable New Deal Fund No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Renewable New Deal Fund No. 1 | Woori Renewable New Deal Fund No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 60.00% | 60.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori MDF V General Type Private Real Estate Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Woori MDF V General Type Private Real Estate Investment Trust | Woori MDF V General Type Private Real Estate Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 50.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| Woori Top-Class Equity Fund of Funds Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[8] | Woori Top-Class Equity Fund of Funds Private Investment Trust | Woori Top-Class Equity Fund of Funds Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Real Estate Blind Investment General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[8] | Woori Real Estate Blind Investment General Type Private Investment Trust No. 1 | Woori Real Estate Blind Investment General Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Top-Class Senior and Junior Loan Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[8] | Woori Top-Class Senior and Junior Loan Private Investment Trust | Woori Top-Class Senior and Junior Loan Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WI2511 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5],[8] | WI2511 Asset Securitization Specialty Co., Ltd. | WI2511 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WH2509 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5],[8] | WH2509 Asset Securitization Specialty Co., Ltd. | WH2509 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WK2509 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5],[8] | WK2509 Asset Securitization Specialty Co., Ltd. | WK2509 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WHKN2506 Asset Securitization Specialty Co., Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5],[8] | WHKN2506 Asset Securitization Specialty Co., Ltd. | WHKN2506 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WDSB2503 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WDSB2503 Asset Securitization Specialty Co., Ltd. | WDSB2503 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Short Term Bond Master Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6],[8] | Woori Short Term Bond Master Investment Trust | Woori Short Term Bond Master Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Woori Total Bond Market Master Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | Woori Total Bond Market Master InvestmentTrust | ||||||||||||||||||||
| Main business | Securities investment and others | ||||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Woori US Billionaire Equity EMP Feeder Investment Trust (UH) ClassC-F | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori US Billionaire Equity EMP Feeder Investment Trust (UH)ClassC-F | Woori US Billionaire Equity EMP Feeder Investment Trust (UH)ClassC-F | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Woori US Billionaire Equity EMP Feeder Investment Trust (H) ClassC-F | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori US Billionaire Equity EMP Feeder Investment Trust (H)Class C-F | Woori US Billionaire Equity EMP Feeder Investment Trust (H)Class C-F | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Woori US Billionaire Equity Master Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2] | Woori US Billionaire Equity Master Investment Trust | Woori US Billionaire Equity Master Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Woori Following Foreigners 40 Securities Sub-Investment Trust [Bond Mixed-Fund of Funds] Class C-F | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2] | Woori Following Foreigners 40 Securities Sub-Investment Trust [Bond Mixed-Fund of Funds] Class C-F | Woori Following Foreigners 40 Securities Sub-Investment Trust [Bond Mixed-Fund of Funds] Class C-F | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 31.30% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Following Foreigners Securities Sub-Investment Master Fund [Equity] | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2] | Woori Following Foreigners Securities Sub-Investment Master Fund[Equity] | Woori Following Foreigners Securities Sub-Investment Master Fund[Equity] | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori China Convertible Bond Master Fund | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2],[6] | Woori China Convertible Bond Master Fund | Woori China Convertible Bond Master Fund | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 63.30% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Pantheon Metrics General Type Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Woori Pantheon Metrics General Type Private Investment Trust | Woori Pantheon Metrics General Type Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Park Square Payton General Type Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Woori Park Square Payton General Type Private Investment Trust | Woori Park Square Payton General Type Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Alceon Australia RDS General Type Private Placement Investment Trust 3 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Alceon Australia RDS General Type Private Placement Investment Trust 3 | Alceon Australia RDS General Type Private Placement Investment Trust 3 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Alceon Australia RDS General Type Private Placement Investment Trust 2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Alceon Australia RDS General Type Private Placement Investment Trust 2 | Alceon Australia RDS General Type Private Placement Investment Trust 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| IGIS U.S. Private Placement Real Estate Investment Trust No. 469-2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | IGIS U.S. Private Placement Real Estate Investment Trust No. 469-2 | IGIS U.S. Private Placement Real Estate Investment Trust No. 469-2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| IGIS U.S. Private Placement Real Estate Investment Trust No. 469-1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | IGIS U.S. Private Placement Real Estate Investment Trust No. 469-1 | IGIS U.S. Private Placement Real Estate Investment Trust No. 469-1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| KB NB Private Investment Trust No.4 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | KB NB Private InvestmentTrust No. 4 | KB NB Private InvestmentTrust No. 4 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Alceon Real Property Blind General Type Private Placement Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Alceon Real Property Blind General Type Private Placement Investment Trust | Alceon Real Property Blind General Type Private Placement Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Hanwha Global Infrastructure Private Fund 31 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Hanwha Global Infrastructure Private Fund 31 | Hanwha Global Infrastructure Private Fund 31 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Alceon Real Infrastructure Blind General Type Private Placement Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Alceon Real Infrastructure Blind General Type Private Placement Investment Trust | Alceon Real Infrastructure Blind General Type Private Placement Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Kiwoom Europe Infra A.I. Private Type Investment Trust IX | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Kiwoom Europe Infra A.I. Private Type Investment Trust IX | Kiwoom Europe Infra A.I. Private Type Investment Trust IX | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Kookmin Bank acting as Trustee of Kiwoom AGPS Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Kookmin Bank acting as Trustee of Kiwoom AGPS Private Investment Trust | Kookmin Bank acting as Trustee of Kiwoom AGPS Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Kiwoom Global Infra A.I. Private Type Investment Trust II | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | ABL Life Insurance Co., Ltd. | ABL Life Insurance Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [2] | Kiwoom Global Infra A.I. Private Type Investment Trust II | Kiwoom Global Infra A.I. Private Type Investment Trust II | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Kookmin Bank acting as Trustee of Kiwoom Andante Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Kookmin Bank acting as Trustee of Kiwoom Andante Private Investment Trust | Kookmin Bank acting as Trustee of Kiwoom Andante Private Investment Trust | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| ABA Financial Service LLC. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | ABA Financial Service LLC. | ABA Financial Service LLC. | |||||||||||||||||||
| Main business | Insurance agents and brokers | Insurance agents and brokers | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WiBee Central 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WiBee Central 1st Co., Ltd | WiBee Central 1st Co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WiBee Sae-A 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WiBee Sae-A 1st Co., Ltd | WiBee Sae-A 1st Co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WiBee AK 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Held by Woori Investment Securities Co., Ltd. | Held by Woori Investment Securities Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WiBee AK 1st Co., Ltd. | WiBee AK 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Kiwoom Harmony Private Placement Investment Trust No. 9 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | Kiwoom Harmony Private Placement Investment Trust No. 9 | Kiwoom Harmony Private Placement Investment Trust No. 9 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORI SONO 1ST CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI SONO 1ST CO., LTD | WOORI SONO 1ST CO., LTD | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORI TECHONE 2ND CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI TECHONE 2ND CO., LTD | WOORI TECHONE 2ND CO., LTD | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| WOORI TECHONE 1ST CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI TECHONE 1ST CO., LTD | WOORI TECHONE 1ST CO., LTD | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| WOORI DK 1ST CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI DK 1ST CO., LTD. | WOORI DK 1ST CO., LTD. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| WOORI BLOSSOM 1ST CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI BLOSSOM 1ST CO., LTD. | WOORI BLOSSOM 1ST CO., LTD. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| WOORI GANGNAM ALPHA 1ST CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI GANGNAM ALPHA 1ST CO., LTD. | WOORI GANGNAM ALPHA 1ST CO., LTD. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| WOORI HEROS 1ST CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI HEROS 1ST CO., LTD. | WOORI HEROS 1ST CO., LTD. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| WOORI PARC1. 2ND CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI PARC1. 2ND CO., LTD | WOORI PARC1. 2ND CO., LTD | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | The entity is a structured entity for the purpose of asset securitization. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are included in the consolidation during the year ended December 31, 2025. | |||||||||||||||||||
| Woori Private Placement Investment Trust No. 3 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Private Placement Investment Trust No. 3 | Woori Private Placement Investment Trust No. 3 | |||||||||||||||||||
| Subsidiaries | [2],[9] | Woori Private Placement Investment Trust No. 3 | Woori Private Placement Investment Trust No. 3 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 76.50% | 76.50% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. As a master-feeder fund, it is the percentage of the feeder fund’s ownership in the master fund. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Japan Private Placement Real Estate Master Investment Trust No. 2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[6],[9] | Woori Japan Private Placement Real Estate Master Investment Trust No. 2 | Woori Japan Private Placement Real Estate Master Investment Trust No. 2 | ||||||||||||||||||
| Main business | [2],[9] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 100.00% | |||||||||||||||||||
| Location | [2],[9] | Korea | Korea | ||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. As a master-feeder fund, it is the percentage of the feeder fund’s ownership in the master fund. | |||||||||||||||||||
| Woori Japan Private Placement Real Estate Master Investment Trust No.2-1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[6] | Woori Japan Private Placement Real Estate Master Investment Trust No. 2-1 | Woori Japan Private Placement Real Estate Master Investment Trust No. 2-1 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 100.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | |||||||||||||||||||
| Woori Japan Private Placement Real Estate Master Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Japan Private Placement Real Estate Master Investment Trust No. 1 | Woori Japan Private Placement Real Estate Master Investment Trust No. 1 | |||||||||||||||||||
| Subsidiaries | [2],[6],[9] | Woori Japan Private Placement Real Estate Master Investment Trust No. 1 | Woori Japan Private Placement Real Estate Master Investment Trust No. 1 | ||||||||||||||||||
| Main business | [2],[9] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 100.00% | |||||||||||||||||||
| Location | [2],[9] | Korea | Korea | ||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. As a master-feeder fund, it is the percentage of the feeder fund’s ownership in the master fund. | |||||||||||||||||||
| Woori Real Estate Financial Stabilization General Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori bank, Woori Investment Securities Co., Ltd., and Woori Asset Management Co., Ltd | Woori bank, Woori Investment Securities Co., Ltd., and Woori Asset Management Co., Ltd | |||||||||||||||||||
| Subsidiaries | [2] | Woori Real Estate Financial Stabilization General Private Investment Trust No. 1 | Woori Real Estate Financial Stabilization General Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | Dec. 31, 2024 | ||||||||||||||||||
| Woori Innovation Growth(Infrastructure) General Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Innovation Growth(Infrastructure) General Type Private Investment Trust No. 2 | Woori Innovation Growth(Infrastructure) General Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 46.40% | 46.40% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | Dec. 31, 2024 | ||||||||||||||||||
| Woori General Type Private Real Estate Investment Trust No.6 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori General Type Private Real Estate Investment Trust No. 6 | Woori General Type Private Real Estate Investment Trust No. 6 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 85.80% | 85.80% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | |||||||||||||||||||
| Woori Japan Private Placement Real Estate Feeder Investment Trust No.1-1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Financial Capital Co., Ltd. | Woori Financial Capital Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2],[6] | Woori Japan Private Placement Real Estate Feeder Investment Trust No. 1-1 | Woori Japan Private Placement Real Estate Feeder Investment Trust No. 1-1 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 63.20% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Fund Financing General Type Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Fund Financing General Type Private Investment Trust | |||||||||||||||||||
| Main business | [2] | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 99.30% | 99.70% | |||||||||||||||||||
| Location | [2] | Korea | |||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2025 | Dec. 31, 2024 | ||||||||||||||||||
| Woori Busan Logistics Infra Private Placement Special Asset Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Busan Logistics Infra Private Placement Special Asset Investment Trust | Woori Busan Logistics Infra Private Placement Special Asset Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Equity Investment General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [2] | Woori Equity Investment General Type Private Investment Trust No. 1 | |||||||||||||||||||
| Subsidiaries | [2] | Woori Equity Investment General Type Private Investment Trust No. 1 | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Senior Loan General Type Private Investment Trust No.3 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Senior Loan General Type Private Investment Trust No. 3 | Woori Senior Loan General Type Private Investment Trust No. 3 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 47.30% | 45.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori General Type Private Real Estate Investment Trust No.7 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori General Type Private Real Estate Investment Trust No. 7 | Woori General Type Private Real Estate Investment Trust No. 7 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 87.00% | 87.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Natixis Partnership Global Private Debt Fund No. 1-2(EUR) | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Natixis Partnership Global Private Debt Fund No. 1-2(EUR) | Woori Natixis Partnership Global Private Debt Fund No. 1-2(EUR) | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 80.00% | 80.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Natixis Partnership Global Private Debt Fund No. 1-1(USD) | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Natixis Partnership Global Private Debt Fund No. 1-1(USD) | Woori Natixis Partnership Global Private Debt Fund No. 1-1(USD) | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 80.00% | 80.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Partners General Private Investment Trust No.3 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Partners General Private Investment Trust No. 3 | Woori Partners General Private Investment Trust No. 3 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 90.90% | 90.90% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Esg Infrastructure Development General Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori ESG Infrastructure Development General Type Private Investment Trust No. 2 | Woori ESG Infrastructure Development General Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 50.00% | 50.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Clean Energy General Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Clean Energy General Type Private Investment Trust No. 2 | Woori Clean Energy General Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 30.80% | 30.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 | Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 | ||||||||||||||||||
| Subsidiaries | [2] | Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 | Woori Japan Blind General Type Private Real Estate Feeder Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 99.90% | 99.90% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Japan General Type Private Real Estate Feeder Investment Trust No.1-2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[6] | Woori Japan General Type Private Real Estate Feeder Investment Trust No. 1-2 | Woori Japan General Type Private Real Estate Feeder Investment Trust No. 1-2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 98.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Senior Loan General Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank and Tongyang Life Insurance Co., Ltd | Woori Bank and Tongyang Life Insurance Co., Ltd | ||||||||||||||||||
| Subsidiaries | [2] | Woori Senior Loan General Type Private Investment Trust No. 2 | Woori Senior Loan General Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 54.00% | 50.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori General Type Private Real Estate Investment Trust No.5 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori General Type Private Real Estate Investment Trust No. 5 | Woori General Type Private Real Estate Investment Trust No. 5 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 87.00% | 87.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Woori Bank Partners Professional Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Woori Bank Partners Professional Type Private Investment Trust No. 2 | Woori Woori Bank Partners Professional Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 90.90% | 90.90% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Global Mid Market Secondary General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Global Mid-market Secondary General Type Private Investment Trust No. 1 | Woori Global Mid-market Secondary General Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 80.00% | 80.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori General Type Private Real Estate Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori General Type Private Real Estate Investment Trust No. 1 | Woori General Type Private Real Estate Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 86.80% | 84.90% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Wooribank Partners General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori bank | Woori bank | |||||||||||||||||||
| Subsidiaries | [2] | Woori WooriBank Partners General Type Private Investment Trust No. 1 | Woori WooriBank Partners General Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 92.60% | 92.60% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori New Deal (Infrastructure) Policy Fund No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd. and Woori Asset Management Co., Ltd. | Woori Bank, Woori Financial Capital Co., Ltd. and Woori Asset Management Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Woori New Deal(Infrastructure) Policy Fund No. 1 | Woori New Deal(Infrastructure) Policy Fund No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 70.00% | 70.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Junior Equity General Type Private Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Junior Equity General Type Private Investment Trust | Woori Junior Equity General Type Private Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Gp Commitment Loan General Type Private Investment Trust No.3 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori GP Commitment Loan General Type Private Investment Trust No. 3 | Woori GP Commitment Loan General Type Private Investment Trust No. 3 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2024 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Gp Commitment Loan General Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori GP Commitment Loan General Type Private Investment Trust No. 2 | Woori GP Commitment Loan General Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Equity Bridge Loan General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Equity Bridge Loan General Type Private Investment Trust No. 1 | Woori Equity Bridge Loan General Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 80.00% | 80.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Gp Commitment Loan General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori GP Commitment Loan General Type Private Investment Trust No. 1 | Woori GP Commitment Loan General Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WFBS 1st Corporate Recovery Private Equity Fund | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | WFBS 1st Corporate Recovery Private Equity Fund | WFBS 1st Corporate Recovery Private Equity Fund | ||||||||||||||||||
| Main business | Finance | Finance | |||||||||||||||||||
| Percentage of ownership (%) | 96.20% | 96.20% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| VOGO DL General Private Equity Investment Trust 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | VOGO DL General Private Equity Investment Trust 1 | VOGO DL General Private Equity Investment Trust 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 99.40% | 99.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WSB2409 Asset Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WSB2409 Asset Securitization Specialty Co., Ltd. | WSB2409 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WS2409 Asset Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WS2409 Asset Securitization Specialty Co., Ltd. | WS2409 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WKN2406 Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WKN2406 Securitization Specialty Co., Ltd. | WKN2406 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WI2406 Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WI2406 Securitization Specialty Co., Ltd. | WI2406 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WK2406 Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WK2406 Securitization Specialty Co., Ltd. | WK2406 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WSB2406 Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WSB2406 Securitization Specialty Co., Ltd. | WSB2406 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WH2403 Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WH2403 Securitization Specialty Co., Ltd. | WH2403 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WK2403 Asset Securitization Specialty Co Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WK2403 Asset Securitization Specialty Co., Ltd. | WK2403 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Didim US Technology and Bio-Healthcare Feeder Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2] | Woori Didim US Technology and Bio-Healthcare Feeder InvestmentTrust | Woori Didim US Technology and Bio-Healthcare Feeder InvestmentTrust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 44.60% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. | |||||||||||||||||||
| Woori Rooftop Solar Private Special Asset Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Asset Management Corp. | Woori Asset Management Corp. | |||||||||||||||||||
| Subsidiaries | [2] | Woori Rooftop Solar Private Special Asset Investment Trust No.1 | Woori Rooftop Solar Private Special Asset Investment Trust No.1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 40.10% | 40.10% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Namyangju Resource Circulation Facility Development Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori ESG Infrastructure Development General Private Investment Trust No. 1 | Woori ESG Infrastructure Development General Private Investment Trust No. 1 | |||||||||||||||||||
| Subsidiaries | Namyangju Resource Circulation Facility Development Co., Ltd. | Namyangju Resource Circulation Facility Development Co., Ltd. | |||||||||||||||||||
| Main business | Other professional services | Other professional services | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Global Infrastructure Development Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori ESG Infrastructure Development General Private Investment Trust No. 1 | Woori ESG Infrastructure Development General Private Investment Trust No. 1 | |||||||||||||||||||
| Subsidiaries | Woori Global Infrastructure Development Co., Ltd. | Woori Global Infrastructure Development Co., Ltd. | |||||||||||||||||||
| Main business | Other financial services | Other financial services | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| JB Airline Private Placement Investment Trust No.8 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [2] | JB Airline Private Placement Investment Trust No. 8 | JB Airline Private Placement Investment Trust No. 8 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 97.00% | 97.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Global Secondary Private Placement Investment Trust No. 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | Woori Global Secondary Private Placement Investment Trust No. 1 | ||||||||||||||||||||
| Main business | Securities investment and others | ||||||||||||||||||||
| Percentage of ownership (%) | 98.80% | 98.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Mirae Asset Multi Overseas Real Estate General Private Investment Trust No 5 To 2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Mirae Asset Multi Overseas Real Estate General Private Investment Trust No. 5-2 | ||||||||||||||||||||
| Main business | Securities investment and others | ||||||||||||||||||||
| Percentage of ownership (%) | 99.00% | 99.00% | |||||||||||||||||||
| Location | Korea | ||||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORI SEOUL STATION AREA 1ST, CO., LTD. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5],[8] | WOORI SEOUL STATION AREA 1ST, CO,. LTD. | WOORI SEOUL STATION AREA 1ST, CO,. LTD. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORI HL 1ST, CO., LIMITED. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | WOORI HL 1ST, CO,. LIMITED | WOORI HL 1ST, CO,. LIMITED | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORI ENERBILITY 1ST, CO., LIMITED. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | WOORI ENERBILITY 1ST, CO,. LIMITED | WOORI ENERBILITY 1ST, CO,. LIMITED | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WOORIWON 1ST, CO., LIMITED. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | WOORIWON 1ST, CO,. LIMITED | WOORIWON 1ST, CO,. LIMITED | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori EUGENE 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori EUGENE 1st Co., Ltd | Woori EUGENE 1st Co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Plasma 1st Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori Plasma 1st Co., Ltd. | Woori Plasma 1st Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori QS 2nd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori QS 2nd Co., Ltd | Woori QS 2nd Co., Ltd | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori HR 2nd Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Bank | Woori Bank | |||||||||||||||||||
| Subsidiaries | [5] | Woori HR 2nd Co., Ltd. | Woori HR 2nd Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 0.00% | 0.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WI2203 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Financial F&I Co., Ltd. | Woori Financial F&I Co., Ltd. | |||||||||||||||||||
| Subsidiaries | [5] | WI2203 Securitization Specialty Co., Ltd. | WI2203 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WM2203 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WM2203 Asset Securitization Specialty Co., Ltd. | WM2203 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WNI2206 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WNI2206 Asset Securitization Specialty Co., Ltd. | WNI2206 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WI2209 Securitization Specialty Co., Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WI2209 Securitization Specialty Co., Ltd. | WI2209 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WN2212 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WN2212 Asset Securitization Specialty Co., Ltd. | WN2212 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WK2212 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WK2212 Asset Securitization Specialty Co., Ltd. | WK2212 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WH2306 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WH2306 Securitization Specialty Co., Ltd. | WH2306 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WN2306 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WN2306 Securitization Specialty Co., Ltd. | WN2306 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WNKN2309 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WNKN2309 Securitization Specialty Co., Ltd. | WNKN2309 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WB2309 Securitization Specialty Co., Ltd | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WB2309 Securitization Specialty Co., Ltd. | WB2309 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WI2311 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WI2311 Securitization Specialty Co., Ltd. | WI2311 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WSB2312 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WSB2312 Securitization Specialty Co., Ltd. | WSB2312 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WK2312 Asset Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WK2312 Asset Securitization Specialty Co., Ltd. | WK2312 Asset Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| WBS2312 Securitization Specialty Co., Ltd. | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [5] | WBS2312 Securitization Specialty Co., Ltd. | WBS2312 Securitization Specialty Co., Ltd. | ||||||||||||||||||
| Main business | Asset securitization | Asset securitization | |||||||||||||||||||
| Percentage of ownership (%) | 5.00% | 5.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Venture Partners US | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | Woori Venture Partners Co., Ltd. | Woori Venture Partners Co., Ltd. | |||||||||||||||||||
| Subsidiaries | Woori Venture Partners US | Woori Venture Partners US | |||||||||||||||||||
| Main business | Other financial services | Other financial services | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | America | America | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Green ESG Growth No.1 Private Equity Fund | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Green ESG Growth No. 1 Private Equity Fund | Green ESG Growth No. 1 Private Equity Fund | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 32.70% | 34.80% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori PE Secondary Fund 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd., and Woori Private Equity Asset Management Co., Ltd. | Woori Bank, Woori Financial Capital Co., Ltd., and Woori Private Equity Asset Management Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Woori PE Secondary Fund 1 | Woori PE Secondary Fund 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori New Growth Credit Fund 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori New Growth Credit Fund 1 | Woori New Growth Credit Fund 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Japanese Hotel Real Estate Private Equity Fund 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Financial Capital Co., Ltd., Woori Private Equity Asset Management Co., Ltd. and Woori Investment Securities Co., Ltd. | Woori Financial Capital Co., Ltd., Woori Private Equity Asset Management Co., Ltd. and Woori Investment Securities Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Japanese Hotel Real Estate Private Equity Fund 1 | Japanese Hotel Real Estate Private Equity Fund 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Innovative Growth Professional Investment Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd., Woori Savings Bank and Woori Private Equity Asset Management Co., Ltd. | Woori Bank, Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd., Woori Savings Bank and Woori Private Equity Asset Management Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Woori Innovative Growth Professional Investment Type Private Investment Trust No. 1 | Woori Innovative Growth Professional Investment Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 90.00% | 90.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Innovative Growth Professional Investment Type Private Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd. and Woori Private Equity Asset Management Co., Ltd. | Woori Bank, Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd. and Woori Private Equity Asset Management Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Woori Innovative Growth Professional Investment Type Private Investment Trust No. 2 | Woori Innovative Growth Professional Investment Type Private Investment Trust No. 2 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 85.00% | 85.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Innovative Growth New Deal Private Investment Trust No.3 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Investor | [1] | Woori Bank, Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd. and Woori Private Equity Asset Management Co., Ltd. | Woori Bank, Woori Financial Capital Co., Ltd., Woori Investment Securities Co., Ltd. and Woori Private Equity Asset Management Co., Ltd. | ||||||||||||||||||
| Subsidiaries | [2] | Woori Innovative Growth New Deal Private Investment Trust No. 3 | Woori Innovative Growth New Deal Private Investment Trust No. 3 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 94.30% | 94.30% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Global Development Infrastructure Synergy Company Private Placement Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Global Development Infrastructure Synergy Company Private Placement Investment Trust No. 1 | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori North America Infra Private Placement Investment Trust No. 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | Woori North America Infra Private Placement Investment Trust No. 1 | Woori North America Infra Private Placement Investment Trust No. 1 | |||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Infrastructure New Deal Specialized Investment Private Equity Investment Trust No. 1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Infrastructure New Deal Specialized Investment Private Equity Investment Trust No. 1 | Woori Infrastructure New Deal Specialized Investment Private Equity Investment Trust No. 1 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | [2] | 100.00% | 100.00% | ||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori General Type Private Real Estate Investment Trust No.2 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori General Type Private Real Estate Investment Trust No. 2 | Woori General Type Private Real Estate Investment Trust No. 2 | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | [2] | 30.10% | 30.10% | ||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori ESG Infrastructure Development General Type Private Investment Trust No.1 | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori ESG Infrastructure Development General Type Private Investment Trust No. 1 | Woori ESG Infrastructure Development General Type Private Investment Trust No. 1 | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori Dongbu Underground Expressway General type Private Special Asset Investment Trust | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Dongbu Underground Expressway General type Private Special Asset Investment Trust | Woori Dongbu Underground Expressway General type Private Special Asset Investment Trust | ||||||||||||||||||
| Main business | Securities investment and others | Securities investment and others | |||||||||||||||||||
| Percentage of ownership (%) | 40.00% | 40.00% | |||||||||||||||||||
| Location | Korea | Korea | |||||||||||||||||||
| Financial statements date | Dec. 31, 2025 | Dec. 31, 2024 | |||||||||||||||||||
| Woori FG Digital Investment Fund 1st | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori FG Digital Investment Fund 1st | Woori FG Digital Investment Fund 1st | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | Dec. 31, 2024 | ||||||||||||||||||
| Woori Corporate Turnaround No.1 Private Equity Fund | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | Woori Corporate Turnaround No.1 Private Equity Fund | Woori Corporate Turnaround No.1 Private Equity Fund | ||||||||||||||||||
| Main business | [2] | Securities investment and others | Securities investment and others | ||||||||||||||||||
| Percentage of ownership (%) | 35.30% | 36.40% | |||||||||||||||||||
| Location | [2] | Korea | Korea | ||||||||||||||||||
| Financial statements date | [2] | Dec. 31, 2024 | Dec. 31, 2024 | ||||||||||||||||||
| GK OK Chatan | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2],[6] | GK OK Chatan | GK OK Chatan | ||||||||||||||||||
| Main business | Other financial services | Other financial services | |||||||||||||||||||
| Location | Japan | Japan | |||||||||||||||||||
| Description of significant judgements and assumptions made in determining that entity controls another entity even though it holds less than half of voting rights | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | The entity is a structured entity for the purpose of investment in securities. Although the Group is not a majority shareholder, the Group 1) has the power over the investee, 2) is exposed to or has rights to variable returns from its involvement with the investee, and 3) has the ability to use its power to affect its returns. Companies are excluded from the consolidation as of December 31, 2023. | |||||||||||||||||||
| GK Woorido | |||||||||||||||||||||
| Significant investments in subsidiaries [Abstract] | |||||||||||||||||||||
| Subsidiaries | [2] | GK Woorido | GK Woorido | ||||||||||||||||||
| Main business | Other financial services | Other financial services | |||||||||||||||||||
| Percentage of ownership (%) | 100.00% | 100.00% | |||||||||||||||||||
| Location | Japan | Japan | |||||||||||||||||||
| Financial statements date | Sep. 30, 2025 | Sep. 30, 2024 | |||||||||||||||||||
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