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Other Financial Assets - Summary of Other Financial Assets (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Other Financial Assets [Line Items] |  |
Current Other financial assets | ₩ 798,819 | ₩ 1,365,603
Non-Current Other financial assets | 1,567,632 | 1,271,976
Loans and receivables |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 132,061 | 87,589
Non-Current Other financial assets | 881,310 | 821,482
Loans and receivables | Gross amount |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 132,890 | 88,406
Non-Current Other financial assets | 968,468 | 903,397
Loans and receivables | Allowance for doubtful accounts |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | (13) | (10)
Non-Current Other financial assets | (54,824) | (52,667)
Loans and receivables | Present value discount |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | (816) | (807)
Non-Current Other financial assets | (32,334) | (29,248)
Short-term financial instruments |  |
Other Financial Assets [Line Items] |  |
Current Other financial assets | 666,758 | 1,278,014
Long-term financial instruments |  |
Other Financial Assets [Line Items] |  |
Non-Current Other financial assets | ₩ 686,322 | ₩ 450,494

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