XML 168 R153.htm IDEA: XBRL DOCUMENT
v3.25.1

Consolidated Subsidiaries - Summary of Non-Controlling Interest Prior to Intra-Group Eliminations (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Current assets | ₩ 2,945,422 | ₩ 2,735,212 | ₩ 2,611,740
Non-current assets of subsidiaries | 5,833,560 | 5,680,421 | 6,080,580
Current liabilities of subsidiaries | (1,984,573) | (1,573,191) | (1,405,456)
Non-current liabilities of subsidiaries | (2,600,698) | (2,800,982) | (3,000,673)
Net assets of subsidiaries | 4,193,711 | 4,041,460 | 4,286,191
Book value of non-controlling interest | 1,447,597 | 1,419,707 | 1,454,860
Sales | 3,119,878 | 3,280,495 | 3,663,857
Profit for the year | 354,711 | 261,366 | 223,856
Profit for the year attributable to non-controlling interest of subsidiaries | 130,270 | 106,405 | 37,745
Cash flows from operating activities of subsidiaries | 934,881 | 373,994 | 386,465
Cash flows from investing activities of subsidiaries | (606,591) | (501,190) | (678,819)
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (300,782) | (17,359) | 532,524
Dividends to non-controlling interests of subsidiaries | (137,216) | (55,534) | (42,344)
Effect of exchange rate fluctuation of subsidiaries | 42,892 | 7,459 | (2,697)
Net increase (decrease) of cash and cash equivalents | ₩ (66,816) | ₩ (192,630) | ₩ 195,129
KEPCO Plant Service & Engineering Co., Ltd. |  |  |
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Percentage of ownership | 49.00% | 49.00% | 49.00%
Current assets | ₩ 1,033,936 | ₩ 953,211 | ₩ 861,705
Non-current assets of subsidiaries | 641,840 | 632,169 | 693,748
Current liabilities of subsidiaries | (341,918) | (313,249) | (316,497)
Non-current liabilities of subsidiaries | (13,561) | (5,348) | (28,205)
Net assets of subsidiaries | 1,320,297 | 1,266,783 | 1,210,751
Book value of non-controlling interest | 646,946 | 620,723 | 593,268
Sales | 1,534,269 | 1,523,031 | 1,425,913
Profit for the year | 170,967 | 161,849 | 97,881
Profit for the year attributable to non-controlling interest of subsidiaries | 83,774 | 79,306 | 47,962
Cash flows from operating activities of subsidiaries | 538,151 | (35,492) | 81,419
Cash flows from investing activities of subsidiaries | (379,243) | 26,915 | 27,372
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (63,535) | (36,433) | (33,187)
Dividends to non-controlling interests of subsidiaries | (47,584) | (28,775) | (26,438)
Effect of exchange rate fluctuation of subsidiaries | 1,362 | (454) | (486)
Net increase (decrease) of cash and cash equivalents | ₩ 49,151 | ₩ (74,239) | ₩ 48,680
KEPCO Ilijan Corporation |  |  |
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Percentage of ownership | 49.00% | 49.00% | 49.00%
Current assets | ₩ 58,291 | ₩ 142,023 | ₩ 230,031
Non-current assets of subsidiaries | 461 | 688 | 1,101
Current liabilities of subsidiaries | (280) | (252) | (3,642)
Non-current liabilities of subsidiaries | (335) | (548) | 0
Net assets of subsidiaries | 58,137 | 141,911 | 227,490
Book value of non-controlling interest | 28,487 | 69,536 | 111,470
Sales | 0 | 0 | 23,263
Profit for the year | 4,549 | 3,718 | 16,455
Profit for the year attributable to non-controlling interest of subsidiaries | 2,229 | 1,822 | 8,063
Cash flows from operating activities of subsidiaries | 5,034 | 1,086 | 68,475
Cash flows from investing activities of subsidiaries | 0 | 84 | 22,604
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (64,696) | (93,348) | (9,609)
Dividends to non-controlling interests of subsidiaries | (36,759) | (643) | (8,834)
Effect of exchange rate fluctuation of subsidiaries | 12,321 | 5,135 | 8,807
Net increase (decrease) of cash and cash equivalents | ₩ (84,100) | ₩ (87,686) | ₩ 81,443
KEPCO Engineering & Construction Company, Inc. |  |  |
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Percentage of ownership | 48.76% | 48.76% | 33.92%
Current assets | ₩ 568,226 | ₩ 446,900 | ₩ 372,031
Non-current assets of subsidiaries | 377,158 | 407,804 | 443,502
Current liabilities of subsidiaries | (359,629) | (249,899) | (243,796)
Non-current liabilities of subsidiaries | (8,281) | (57,497) | (28,323)
Net assets of subsidiaries | 577,474 | 547,308 | 543,414
Book value of non-controlling interest | 281,576 | 266,867 | 184,326
Sales | 553,363 | 545,092 | 505,291
Profit for the year | 58,513 | 32,654 | 17,954
Profit for the year attributable to non-controlling interest of subsidiaries | 28,531 | 15,922 | 6,090
Cash flows from operating activities of subsidiaries | 46,528 | 39,985 | 4,918
Cash flows from investing activities of subsidiaries | (31,761) | (19,345) | 18,712
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (11,104) | (6,687) | (7,260)
Dividends to non-controlling interests of subsidiaries | (9,552) | (5,250) | (3,071)
Effect of exchange rate fluctuation of subsidiaries | 447 | (35) | 5
Net increase (decrease) of cash and cash equivalents | (5,442) | 8,668 | 13,304
Others |  |  |
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Current assets | 1,284,969 | 1,193,078 | 1,147,973
Non-current assets of subsidiaries | 4,814,101 | 4,639,760 | 4,942,229
Current liabilities of subsidiaries | (1,282,746) | (1,009,791) | (841,521)
Non-current liabilities of subsidiaries | (2,578,521) | (2,737,589) | (2,944,145)
Net assets of subsidiaries | 2,237,803 | 2,085,458 | 2,304,536
Book value of non-controlling interest | 490,588 | 462,581 | 565,796
Sales | 1,032,246 | 1,212,372 | 1,709,390
Profit for the year | 120,682 | 63,145 | 91,566
Profit for the year attributable to non-controlling interest of subsidiaries | 15,736 | 9,355 | (24,370)
Cash flows from operating activities of subsidiaries | 345,168 | 368,415 | 231,653
Cash flows from investing activities of subsidiaries | (195,587) | (508,844) | (747,507)
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (161,447) | 119,109 | 582,580
Dividends to non-controlling interests of subsidiaries | (43,321) | (20,866) | (4,001)
Effect of exchange rate fluctuation of subsidiaries | 28,762 | 2,813 | (11,023)
Net increase (decrease) of cash and cash equivalents | ₩ (26,425) | ₩ (39,373) | ₩ 51,702

X
- Definition The amount of dividends paid to non-controlling interests. [Refer: Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph B10 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B10_a&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_DividendsPaidToNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 10 -IssueDate 2024-01-01 -Paragraph 22 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2024-en-r&anchor=para_22&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_f&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph q -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_q&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The profit (loss) from continuing and discontinued operations attributable to non-controlling interests. [Refer: Profit (loss); Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_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 81B -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_81B_a_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProfitLossAttributableToNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Total for all subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash flows from financing activities before dividends to non-controlling interest of subsidiaries. + References No definition available. + Details
Name: | kep_CashFlowsFromFinancingActivitiesBeforeDividendsToNonControllingInterestOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash flows from investing activities of subsidiaries. + References No definition available. + Details
Name: | kep_CashFlowsFromInvestingActivitiesOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash flows from operating activities of subsidiaries. + References No definition available. + Details
Name: | kep_CashFlowsFromOperatingActivitiesOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Current assets of subsidiaries. + References No definition available. + Details
Name: | kep_CurrentAssetsOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Current liabilities of subsidiaries. + References No definition available. + Details
Name: | kep_CurrentLiabilitiesOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | kep_DisclosureOfDetailsOfNonControllingInterestPriorToIntraGroupEliminationsLineItems
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Effect of exchange rate fluctuation of subsidiaries. + References No definition available. + Details
Name: | kep_EffectOfExchangeRateFluctuationOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net assets of subsidiaries. + References No definition available. + Details
Name: | kep_NetAssetsOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net increase (decrease) of cash and cash equivalents of subsidiaries. + References No definition available. + Details
Name: | kep_NetIncreaseDecreaseOfCashAndCashEquivalentsOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Non-current assets of subsidiaries. + References No definition available. + Details
Name: | kep_NonCurrentAssetsOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Non-current liabilities of subsidiaries. + References No definition available. + Details
Name: | kep_NonCurrentLiabilitiesOfSubsidiaries
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Profit loss for the period of subsidiaries non controlling interest. + References No definition available. + Details
Name: | kep_ProfitLossForThePeriodOfSubsidiariesNonControllingInterest
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sales of subsidiaries non controlling interest. + References No definition available. + Details
Name: | kep_SalesOfSubsidiariesNonControllingInterest
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=kep_KEPCOPlantServiceEngineeringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=kep_KEPCOIlijanCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=kep_KEPCOEngineeringConstructionCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=kep_OtherSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |