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v3.25.1

Property, Plant and Equipment - Summary of Changes in Property, Plant and Equipment (Details) (Parenthetical) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment loss on property, plant and equipment | ₩ (11,240) | ₩ (17,031) | ₩ (37,311)
Revenue | 92,578,265 | 87,476,410 | 70,546,024
Cost of sales | 81,964,160 | 89,699,527 | ₩ 100,903,594
Property Plant and Equipment Proceeds And Costs Before Intended Use [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revenue | 101,609 | 38,149 |
Cost of sales | 77,549 | 45,578 |
Construction in progress [member] | Carrying Amount Other than Government Grants [Member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment loss on property, plant and equipment | 0 | (10,700) |
Machinery [member] | Carrying Amount Other than Government Grants [Member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment loss on property, plant and equipment | (735) | (6,331) |
Taean IGCC Gas Refinery [member] | Machinery [member] | Carrying Amount Other than Government Grants [Member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment loss on property, plant and equipment |  | 6,331 |
Guam Ukudu Power LLC [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Revenue | ₩ 112,782 | 0 |
Guam Ukudu Power LLC [member] | Construction in progress [member] | Carrying Amount Other than Government Grants [Member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Impairment loss on property, plant and equipment |  | ₩ 10,700 |

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- Definition The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_99&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_103&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_a&doctype=Standard -URIDate 2024-03-27 + Details
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