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Information About Non-controlling Interests - Summary of Changes in Ownership Interest on the Equity Attributable to Owners (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of subsidiaries [abstract] |  |  |
Carrying amount of non-controlling interests acquired | ₩ (20,329) | ₩ 3,022 | ₩ 19,272
Consideration paid to non-controlling interests | (38) | 213,819 | 69,652
Effect of changes in equity (net amount) | ₩ (20,367) | ₩ 216,841 | ₩ 88,924

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