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Lease - Summary of Profit and Loss Related To Finance Lease (Details) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of quantitative information about leases for lessor [abstract]    
Finance income on the net investment in the lease ₩ 111,569 ₩ 117,763