v3.26.1
Equity - Summary of Hybrid Securities Classified as Owners Equity (Details)
$ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2025
KRW (₩)
Dec. 31, 2024
KRW (₩)
Dec. 31, 2025
USD ($)
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Total ₩ 3,710,498 ₩ 3,810,435 $ 2,568,619
Description of nature of bond type hybrid securities of other equity interest classified as owners equity The hybrid securities mentioned above do not have maturity date but are redeemable after 5 years from date of issuance. The hybrid securities mentioned above do not have maturity date but are redeemable after 5 years from date of issuance.  
Hybrid securities of other equity interest in local currency issued in 202002      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Feb. 06, 2020 Feb. 06, 2020  
Maturity — —  
Interest rate (%) 3.34% 3.34%  
Hybrid Bond ₩ 0 ₩ 400,000  
Hybrid securities of other equity interest in local currency issued in 202010      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Oct. 23, 2020 Oct. 23, 2020  
Maturity — —  
Interest rate (%) 3.00% 3.00%  
Hybrid Bond ₩ 0 ₩ 200,000  
Hybrid securities of other equity interest in local currency issued in 202006      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Jun. 12, 2020 Jun. 12, 2020  
Maturity — —  
Interest rate (%) 3.23% 3.23%  
Hybrid Bond ₩ 0 ₩ 300,000  
Hybrid securities of other equity interest in local currency issued in 202104      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Apr. 08, 2021 Apr. 08, 2021  
Maturity — —  
Interest rate (%) 3.15% 3.15%  
Hybrid Bond ₩ 200,000 ₩ 200,000  
Hybrid securities of other equity interest in local currency issued in 202110      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Oct. 14, 2021 Oct. 14, 2021  
Maturity — —  
Interest rate (%) 3.60% 3.60%  
Hybrid Bond ₩ 200,000 ₩ 200,000  
Hybrid securities of other equity interest in local currency issued in 202202      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Feb. 17, 2022 Feb. 17, 2022  
Maturity — —  
Interest rate (%) 4.10% 4.10%  
Hybrid Bond ₩ 300,000 ₩ 300,000  
Hybrid securities of other equity interest in local currency issued in 202207      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Jul. 28, 2022 Jul. 28, 2022  
Maturity — —  
Interest rate (%) 4.99% 4.99%  
Hybrid Bond ₩ 300,000 ₩ 300,000  
Hybrid securities of other equity interest in local currency issued in 202210      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Oct. 25, 2022 Oct. 25, 2022  
Maturity — —  
Interest rate (%) 5.97% 5.97%  
Hybrid Bond ₩ 220,000 ₩ 220,000  
Hybrid securities of other equity interest in local currency issued in 202302      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Feb. 10, 2023 Feb. 10, 2023  
Maturity — —  
Interest rate (%) 4.65% 4.65%  
Hybrid Bond ₩ 300,000 ₩ 300,000  
Hybrid securities of other equity interest in local currency issued in 202309      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Sep. 07, 2023 Sep. 07, 2023  
Maturity — —  
Interest rate (%) 5.04% 5.04%  
Hybrid Bond ₩ 200,000 ₩ 200,000  
Hybrid securities of other equity interest in local currency issued in 202402      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Feb. 07, 2024 Feb. 07, 2024  
Maturity — —  
Interest rate (%) 4.49% 4.49%  
Hybrid Bond ₩ 400,000 ₩ 400,000  
Hybrid securities of other equity interest in local currency issued in 202406      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Jun. 19, 2024 Jun. 19, 2024  
Maturity — —  
Interest rate (%) 4.27% 4.27%  
Hybrid Bond ₩ 400,000 ₩ 400,000  
Hybrid securities of other equity interest in local currency issued in 202410      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Oct. 10, 2024 Oct. 10, 2024  
Maturity — —  
Interest rate (%) 4.00% 4.00%  
Hybrid Bond ₩ 400,000 ₩ 400,000  
Hybrid securities of other equity interest in local currency issued in 202505      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date May 13, 2025 May 13, 2025  
Maturity — —  
Interest rate (%) 3.45%    
Hybrid Bond ₩ 400,000    
Hybrid securities of other equity interest in local currency issued in 202510      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issue date Oct. 22, 2025 Oct. 22, 2025  
Maturity — —  
Interest rate (%) 3.34%    
Hybrid Bond ₩ 400,000    
Issuance cost      
Disclosure of bond type hybrid securities of other equity interest classified as owner's equity [Line Items]      
Issuance cost of hybrid bonds ₩ (9,502) ₩ (9,565)