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Deferred Revenues (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of deferred revenue [abstract]    
Deferred Revenue, Beginning Balance ₩ 10,974,845 ₩ 10,356,555
Increase 1,317,061 1,330,129
Recognized as revenue (743,051) (711,839)
Deferred Revenue, Ending Balance ₩ 11,548,855 ₩ 10,974,845