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Inventories - Additional Information (Detail) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Classes of current inventories [abstract]      
Inventories recognised as expense ₩ 3,386,069 ₩ 3,485,288 ₩ 3,787,203
Valuation loss and reversal of valuation loss ₩ 6,205 ₩ 24,294 ₩ 12,920