v3.26.1
Equity - Summary of Equity (Details)
$ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2025
KRW (₩)
Dec. 31, 2024
KRW (₩)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
KRW (₩)
Dec. 31, 2022
KRW (₩)
Capital            
Common stock capital ₩ 3,802,676 ₩ 3,802,676 $ 2,632,429      
Hybrid securities 3,710,498 3,810,435 2,568,619      
Capital surplus            
Paid in capital in excess of par 854,499 854,499        
Others 78,937 79,601        
Sub-total 933,436 934,100        
Capital adjustments            
Treasury stocks (35,517) (35,517)        
Other adjustments [1] (1,646,069) (1,699,038)        
Sub-total (1,681,586) (1,734,555)        
Accumulated other comprehensive income [abstract]            
Net gain on credit risk fluctuation of financial liabilities designated to be measured at FVTPL 1,274 1,348        
Financial assets at FVTOCI (1,106,650) 60,438        
Changes in capital due to equity method (4,222) (1,886)        
Net financial gain(loss) on insurance contract assets(liabilities) 1,534,528 0        
Net financial gain(loss) on reinsurance contract assets(liabilities) (10,462) 0        
Gain on foreign currency translation of foreign operations 416,768 523,780        
Loss on hedges of net investment in foreign operations (127,258) (149,577)        
Remeasurements of defined benefit plan (96,991) (86,218)        
Loss on evaluation of cash flow hedge (144,728) (14,215)        
Sub-total 462,259 333,670     ₩ 18,926 ₩ (639,206)
Retained earnings 28,790,056 [2],[3] 26,950,510 [2],[3] 19,930,122      
Non-controlling interest 1,841,909 [4],[5] 1,798,433 [4],[5] 1,275,075      
Total ₩ 37,859,248 35,895,269 $ 26,208,335 $ 24,848,754 ₩ 33,397,490 ₩ 31,627,342
Additional description for other equity Included 178,060 million Won in capital transaction gains and losses recognized by Woori Bank and (formerly) Woori Financial Group in 2014 and 2,238,228 million Won due to the spin-off of Gyeongnam Bank and Gwangju Bank.          
Additional description for non-controlling interest (*4) The hybrid securities issued by Woori Bank amounting to 1,645,947 million Won and 1,406,513 million Won as of December 31, 2024 and 2025, respectively, are recognized as non-controlling interests. 76,249 million Won and 89,134 million Won of dividends for the hybrid securities issued by Woori Bank are allocated to net profit and loss of the non-controlling interests for the years ended December 31, 2024 and 2025, respectively. (*5) 10,995 million Won of dividends for the hybrid securities issued by Tongyang Life Insurance Co., Ltd. are allocated to net profit and loss of the non-controlling interests for the year ended December 31, 2025.          
Additional description for retained earnings The regulatory reserve for credit losses in retained earnings amounted to 2,392,542 million Won and 2,678,017 million Won as of December 31, 2024 and 2025, respectively in accordance with the relevant article.          
Earned surplus reserve ₩ 554,990 442,650        
Regulatory reserve for credit loss ₩ 2,678,017 ₩ 2,392,542        
[1] Included 178,060 million Won in capital transaction gains and losses recognized by Woori Bank and (formerly) Woori Financial Group in 2014 and 2,238,228 million Won due to the spin-off of Gyeongnam Bank and Gwangju Bank.
[2] The earned surplus reserve in retained earnings amounted to 442,650 million Won and 554,990 million Won as of December 31, 2024 and 2025 in accordance with the Article 53 of the Financial Holding Company Act.
[3] The regulatory reserve for credit losses in retained earnings amounted to 2,392,542 million Won and 2,678,017 million Won as of December 31, 2024 and 2025, respectively in accordance with the relevant article.
[4] 10,995 million Won of dividends for the hybrid securities issued by Tongyang Life Insurance Co., Ltd. are allocated to net profit and loss of the non-controlling interests for the year ended December 31, 2025.
[5] The hybrid securities issued by Woori Bank amounting to 1,645,947 million Won and 1,406,513 million Won as of December 31, 2024 and 2025, respectively, are recognized as non-controlling interests. 76,249 million Won and 89,134 million Won of dividends for the hybrid securities issued by Woori Bank are allocated to net profit and loss of the non-controlling interests for the years ended December 31, 2024 and 2025, respectively.