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Construction Contracts - Summary of Gross Amount of Assets and Liabilities for Contract and Accumulated Earned Revenue, Expense and Others (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2024
Dec. 31, 2023
Accumulated earned revenue, expense and others    
Accumulated earned revenue ₩ 24,255,432 ₩ 22,996,785
Accumulated expense 24,008,579 22,382,628
Accumulated profit 246,853 614,157
Unearned advance receipts 80,069 74,253
Construction contracts    
Construction Contract Assets and Liabilities [Abstract]    
Assets [1] 1,159,085 183,204
Liabilities [2] ₩ 161,778 ₩ 270,789
[1] Included in trade and other receivables, net, in the consolidated statements of financial position.
[2] Included in non-financial liabilities as advance received in the consolidated statements of financial position. The revenue recognized on December 31, 2024 from the amounts included in contract liabilities at the end of the prior year is ￦247,819 million.