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Financial Assets at Fair Value Through Profit or Loss - Summary of Financial Assets at Fair Value Through Profit or Loss (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Current financial assets at fair value through profit or loss | ₩ 1,456,895 | ₩ 2,054,021
Non-current financial assets at fair value through profit or loss | 719,277 | 657,264
Financial assets at fair value through profit or loss |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Current financial assets at fair value through profit or loss | 1,456,895 | 2,054,021
Non-current financial assets at fair value through profit or loss | 564,235 | 490,589
Financial assets at fair value through profit or loss | Beneficiary Certificate |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Current financial assets at fair value through profit or loss | 313 | 130,363
Non-current financial assets at fair value through profit or loss | 152,054 | 107,252
Financial assets at fair value through profit or loss | Cooperative |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Current financial assets at fair value through profit or loss | 0 | 0
Non-current financial assets at fair value through profit or loss | 6,872 | 6,735
Financial assets at fair value through profit or loss | Others |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Current financial assets at fair value through profit or loss | 1,456,582 | 1,923,658
Non-current financial assets at fair value through profit or loss | 405,309 | 376,602
Financial assets designated as at fair value through profit or loss | Debt with embedded derivatives |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Current financial assets at fair value through profit or loss | 0 | 0
Non-current financial assets at fair value through profit or loss | ₩ 155,042 | ₩ 166,675

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