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Employment Benefits - Summary of Expense Relating to Defined Benefit Plans by Nature (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of defined benefit plans [line items] |  |  |
Defined benefit | ₩ 539,619 | ₩ 569,520 | ₩ 547,999
Cost of sales [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Defined benefit | 404,243 | 416,287 | 397,442
Selling, general and administrative expense [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Defined benefit | 81,457 | 95,983 | 94,846
Others (Construction-in-progress and others) [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Defined benefit | ₩ 53,919 | ₩ 57,250 | ₩ 55,711

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Defined benefit. + References No definition available. + Details
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- Details
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- Details
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- Details
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