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Intangible Assets other than Goodwill - Summary of Intangible Asset Explanatory and Changes in intangible assets (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | ₩ 1,033,984 |  |
Changes in intangible assets other than goodwill |  |  |
Impairment | (902) | ₩ (2,865) | ₩ (164)
Ending balance | 1,046,918 | 1,033,984 |
Intangible assets other than goodwill |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 1,033,984 | 956,664 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 92,859 | 79,315 |
Disposal | (542) | (208) |
Amortization | (163,567) | (163,174) |
Impairment | (902) | (283) |
Others | 85,086 | 161,670 |
Ending balance | 1,046,918 | 1,033,984 | 956,664
Intangible assets other than goodwill | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 4,222,403 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 4,418,623 | 4,222,403 |
Intangible assets other than goodwill | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (2,598,953) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (2,761,470) | (2,598,953) |
Intangible assets other than goodwill | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (584,152) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (604,750) | (584,152) |
Intangible assets other than goodwill | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (5,314) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (5,485) | (5,314) |
Software |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 197,428 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 179,145 | 197,428 |
Software | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 197,841 | 203,007 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 18,249 | 12,837 |
Disposal | (4) | (18) |
Amortization | (88,985) | (86,174) |
Impairment | 0 | 0 |
Others | 52,888 | 68,189 |
Ending balance | 179,989 | 197,841 | 203,007
Software | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 1,083,537 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 1,156,641 | 1,083,537 |
Software | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (885,677) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (976,633) | (885,677) |
Software | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (19) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (19) | (19) |
Software | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (413) | (174) |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 0 |
Disposal | 0 | 0 |
Amortization | 229 | 85 |
Impairment | 0 | 0 |
Others | (660) | (324) |
Ending balance | (844) | (413) | (174)
Copyrights, patents rights and other industrial rights |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 23,491 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 26,631 | 23,491 |
Copyrights, patents rights and other industrial rights | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 23,491 | 28,013 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 576 | 319 |
Disposal | (44) | (70) |
Amortization | (4,846) | (4,918) |
Impairment | 0 | (180) |
Others | 7,454 | 327 |
Ending balance | 26,631 | 23,491 | 28,013
Copyrights, patents rights and other industrial rights | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 105,827 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 107,040 | 105,827 |
Copyrights, patents rights and other industrial rights | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (73,158) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (71,231) | (73,158) |
Copyrights, patents rights and other industrial rights | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (9,178) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (9,178) | (9,178) |
Copyrights, patents rights and other industrial rights | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Mining rights |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 32,165 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 29,422 | 32,165 |
Mining rights | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 32,165 | 38,525 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 2,164 |
Disposal | (100) | 0 |
Amortization | (5,798) | (10,289) |
Impairment | 0 | 0 |
Others | 3,155 | 1,765 |
Ending balance | 29,422 | 32,165 | 38,525
Mining rights | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 643,625 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 670,083 | 643,625 |
Mining rights | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (57,549) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (66,938) | (57,549) |
Mining rights | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (553,911) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (573,723) | (553,911) |
Mining rights | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Development expenditures |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 53,313 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 72,734 | 53,313 |
Development expenditures | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 55,434 | 54,505 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 0 |
Disposal | 0 | 0 |
Amortization | (25,830) | (25,614) |
Impairment | 0 | 0 |
Others | 44,069 | 26,543 |
Ending balance | 73,673 | 55,434 | 54,505
Development expenditures | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 966,530 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 1,011,550 | 966,530 |
Development expenditures | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (911,096) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (937,877) | (911,096) |
Development expenditures | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Development expenditures | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (2,121) | (3,477) |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 0 |
Disposal | 0 | 0 |
Amortization | 1,364 | 1,356 |
Impairment | 0 | 0 |
Others | (182) | 0 |
Ending balance | (939) | (2,121) | (3,477)
Intangible assets under development |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 83,555 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 84,168 | 83,555 |
Intangible assets under development | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 86,013 | 67,722 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 69,878 | 51,282 |
Disposal | 0 | 0 |
Amortization | (14) | 0 |
Impairment | 0 | 0 |
Others | (68,236) | (32,991) |
Ending balance | 87,641 | 86,013 | 67,722
Intangible assets under development | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 94,916 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 96,544 | 94,916 |
Intangible assets under development | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Intangible assets under development | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (8,903) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (8,903) | (8,903) |
Intangible assets under development | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (2,458) | (2,108) |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 0 |
Disposal | 0 | 0 |
Amortization | 0 | 0 |
Impairment | 0 | 0 |
Others | (1,015) | (350) |
Ending balance | (3,473) | (2,458) | (2,108)
Usage rights of donated assets and other |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 145,251 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 133,379 | 145,251 |
Usage rights of donated assets and other | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 145,251 | 157,143 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 36 | 0 |
Disposal | 0 | 0 |
Amortization | (11,903) | (11,857) |
Impairment | 0 | 0 |
Others | (5) | (35) |
Ending balance | 133,379 | 145,251 | 157,143
Usage rights of donated assets and other | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 592,739 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 592,680 | 592,739 |
Usage rights of donated assets and other | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (447,352) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (459,165) | (447,352) |
Usage rights of donated assets and other | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (136) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (136) | (136) |
Usage rights of donated assets and other | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Leasehold rights |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 3,929 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 2,431 | 3,929 |
Leasehold rights | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 3,929 | 4,888 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 0 |
Disposal | 0 | 0 |
Amortization | (960) | (959) |
Impairment | (538) | 0 |
Others | 0 | 0 |
Ending balance | 2,431 | 3,929 | 4,888
Leasehold rights | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 28,185 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 28,185 | 28,185 |
Leasehold rights | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (24,256) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (25,216) | (24,256) |
Leasehold rights | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (538) | 0 |
Leasehold rights | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Greenhouse gas emissions rights |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 107,086 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 135,534 | 107,086 |
Greenhouse gas emissions rights | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 107,086 | 43,960 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 123 | 8,577 |
Disposal | 0 | (1) |
Amortization | (416) | (2) |
Impairment | 0 | 0 |
Others | 28,741 | 54,552 |
Ending balance | 135,534 | 107,086 | 43,960
Greenhouse gas emissions rights | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 107,086 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 135,534 | 107,086 |
Greenhouse gas emissions rights | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Greenhouse gas emissions rights | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Greenhouse gas emissions rights | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 0 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 0 | 0 |
Others |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 387,766 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 383,474 | 387,766 |
Others | Carrying Amount Other than Government Grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 388,088 | 364,727 |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 3,997 | 4,136 |
Disposal | (394) | (119) |
Amortization | (26,501) | (24,895) |
Impairment | (364) | (103) |
Others | 18,877 | 44,342 |
Ending balance | 383,703 | 388,088 | 364,727
Others | Acquisition cost |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | 599,958 |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | 620,366 | 599,958 |
Others | Accumulated amortization |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (199,865) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (224,410) | (199,865) |
Others | Accumulated impairment losses |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (12,005) |  |
Changes in intangible assets other than goodwill |  |  |
Ending balance | (12,253) | (12,005) |
Others | Government grants |  |  |
Reconciliation of changes in intangible assets other than goodwill |  |  |
Beginning balance | (322) | (67) |
Changes in intangible assets other than goodwill |  |  |
Acquisition | 0 | 0 |
Disposal | 0 | 0 |
Amortization | 93 | 93 |
Impairment | 0 | 0 |
Others | 0 | (348) |
Ending balance | ₩ (229) | ₩ (322) | ₩ (67)

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- Definition The decrease in intangible assets other than goodwill resulting from disposals. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in intangible assets other than goodwill resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_viii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_c&doctype=Standard -URIDate 2024-03-27 + Details
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