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Commitments and Contingencies - Summary of Guarantees Received from Financial Institutions (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure of detailed information about borrowings [line items] |  |  |
Inventory Assets | ₩ 1,054,671 | ₩ 988,351 |
Investment properties | 2,299,616 | ₩ 2,198,135 | ₩ 1,933,358
Collateral [Member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Inventory Assets | 449,448 |  |
Investment properties | ₩ 494,487 |  |

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