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Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Treasury Stock (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Miscellaneous equity [abstract] |  |
Number of shares (in shares) | 6,188,739 | 11,447,338
Amounts (in millions of Korean won) | ₩ 215,210 | ₩ 398,075

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