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Leases - Summary of Profit and Loss Related To Finance Lease (Details) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of quantitative information about leases for lessor [abstract]    
Finance income on the net investment in the lease ₩ 120,770 ₩ 118,695