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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, 2022
Dec. 31, 2021
Accumulated earned revenue, expense and others    
Accumulated earned revenue ₩ 22,507,004 ₩ 22,051,129
Accumulated expense 21,666,552 20,967,097
Accumulated profit 840,452 1,084,032
Unearned advance receipts 29,877 23,238
Construction Contract Assets and Liabilities [Abstract]    
Assets [1] 118,983 82,306
Liabilities [2] ₩ 120,952 ₩ 5,330
[1] Included in trade and other receivables, net, in the consolidated statements of financial position. The balance of trade receivables from construction contracts are ￦57,639 million and ￦85,757 million, as of December 31, 2021 and 2022, respectively.
[2] Included in non-financial liabilities as advance received in the consolidated statements of financial position. The revenue recognized on December 31, 2022 from the amounts included in contract liabilities at the end of the prior year is ￦5,051 million.