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Other Financial Assets - Summary of Other Financial Assets (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Current |  |
Derivatives assets | ₩ 235,924 | ₩ 465,178
Debt securities | 927,586 | 400,771
Deposit instruments | 7,123,233 | 6,420,797
Short-term financial instruments | 491,841 | 1,212,643
Other current financial assets | 8,778,584 | 8,499,389
Non-current |  |
Derivatives assets | 426,649 | 497,698
Equity securities | 1,721,439 | 1,171,544
Debt securities | 172,181 | 115,601
Other Securities | 696,148 | 762,177
Deposit instruments | 44,425 | 24,631
Other non current financial assets | ₩ 3,060,842 | ₩ 2,571,651

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