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Other Financial Assets - Summary of Other Financial Assets (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Other Financial Assets [Line Items] |  |
Current Other financial assets | ₩ 3,494,717 | ₩ 3,107,397
Non-Current Other financial assets | 4,945,990 | 3,546,214
Loans and receivables |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 108,921 | 138,161
Non-Current Other financial assets | 799,227 | 850,170
Loans and receivables | Gross amount |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 115,161 | 139,178
Non-Current Other financial assets | 901,953 | 966,421
Loans and receivables | Allowance for doubtful accounts |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | (5,156) | (10)
Non-Current Other financial assets | (66,838) | (80,783)
Loans and receivables | Present value discount |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | (1,084) | (1,007)
Non-Current Other financial assets | (35,888) | (35,468)
Short-term financial instruments |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 1,147,929 | 578,578
Long-term financial instruments |  |
Other Financial Assets [Line Items] |  |
Non-Current Other financial assets | 812,211 | 833,737
Other financial assets |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 1,256,850 | 716,739
Non-Current Other financial assets | ₩ 1,611,438 | ₩ 1,683,907

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