XML 164 R151.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Consolidated Subsidiaries - Summary of Non-Controlling Interest Prior to Intra-Group Eliminations (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Current assets | ₩ 2,735,212 | ₩ 2,611,740 | ₩ 2,312,226
Non-current assets of subsidiaries | 5,680,421 | 6,080,580 | 4,940,873
Current liabilities of subsidiaries | (1,573,191) | (1,405,456) | (1,078,273)
Non-current liabilities of subsidiaries | (2,800,982) | (3,000,673) | (2,729,199)
Net assets of subsidiaries | 4,041,460 | 4,286,191 | 3,445,627
Book value of non-controlling interest | 1,419,707 | 1,454,860 | 1,546,434
Sales | 3,280,495 | 3,663,857 | 3,155,329
Profit for the year | 261,366 | 223,856 | 255,829
Profit for the year attributable to non-controlling interest of subsidiaries | 106,405 | 37,745 | 88,941
Cash flows from operating activities of subsidiaries | 373,994 | 386,465 | 536,907
Cash flows from investing activities of subsidiaries | (501,190) | (678,819) | (327,614)
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (17,359) | 532,524 | (2,308)
Dividends to non-controlling interests of subsidiaries | (55,534) | (42,344) | (31,516)
Effect of exchange rate fluctuation of subsidiaries | 7,459 | (2,697) | 18,849
Net increase (decrease) of cash and cash equivalents of subsidiaries | ₩ (192,630) | ₩ 195,129 | ₩ 194,318
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 | ₩ 142,023 | ₩ 230,031 | ₩ 234,224
Non-current assets of subsidiaries | 688 | 1,101 | 24,845
Current liabilities of subsidiaries | (252) | (3,642) | (30,783)
Non-current liabilities of subsidiaries | (548) | 0 | (7,772)
Net assets of subsidiaries | 141,911 | 227,490 | 220,514
Book value of non-controlling interest | 69,536 | 111,470 | 108,052
Sales | 0 | 23,263 | 60,532
Profit for the year | 3,718 | 16,455 | 12,981
Profit for the year attributable to non-controlling interest of subsidiaries | 1,822 | 8,063 | 6,361
Cash flows from operating activities of subsidiaries | 1,086 | 68,475 | 116,440
Cash flows from investing activities of subsidiaries | 84 | 22,604 | 2,216
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (93,348) | (9,609) | (88,927)
Dividends to non-controlling interests of subsidiaries | (643) | (8,834) | 0
Effect of exchange rate fluctuation of subsidiaries | 5,135 | 8,807 | 10,683
Net increase (decrease) of cash and cash equivalents of subsidiaries | ₩ (87,686) | ₩ 81,443 | ₩ 40,412
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 | ₩ 953,211 | ₩ 861,705 | ₩ 793,995
Non-current assets of subsidiaries | 632,169 | 693,748 | 626,710
Current liabilities of subsidiaries | (313,249) | (316,497) | (265,017)
Non-current liabilities of subsidiaries | (5,348) | (28,205) | (46,590)
Net assets of subsidiaries | 1,266,783 | 1,210,751 | 1,109,098
Book value of non-controlling interest | 620,723 | 593,268 | 543,458
Sales | 1,523,031 | 1,425,913 | 1,375,668
Profit for the year | 161,849 | 97,881 | 98,132
Profit for the year attributable to non-controlling interest of subsidiaries | 79,306 | 47,962 | 48,085
Cash flows from operating activities of subsidiaries | (35,492) | 81,419 | 133,160
Cash flows from investing activities of subsidiaries | 26,915 | 27,372 | (39,444)
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (36,433) | (33,187) | (30,599)
Dividends to non-controlling interests of subsidiaries | (28,775) | (26,438) | (25,269)
Effect of exchange rate fluctuation of subsidiaries | (454) | (486) | 885
Net increase (decrease) of cash and cash equivalents of subsidiaries | ₩ (74,239) | ₩ 48,680 | ₩ 38,733
KEPCO Engineering & Construction Company, Inc. |  |  |
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Percentage of ownership | 48.76% | 33.92% | 33.92%
Current assets | ₩ 446,900 | ₩ 372,031 | ₩ 253,958
Non-current assets of subsidiaries | 407,804 | 443,502 | 451,085
Current liabilities of subsidiaries | (249,899) | (243,796) | (183,100)
Non-current liabilities of subsidiaries | (57,497) | (28,323) | (8,492)
Net assets of subsidiaries | 547,308 | 543,414 | 513,451
Book value of non-controlling interest | 266,867 | 184,326 | 174,163
Sales | 545,092 | 505,291 | 433,127
Profit for the year | 32,654 | 17,954 | 16,452
Profit for the year attributable to non-controlling interest of subsidiaries | 15,922 | 6,090 | 5,581
Cash flows from operating activities of subsidiaries | 39,985 | 4,918 | (16,270)
Cash flows from investing activities of subsidiaries | (19,345) | 18,712 | 19,061
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | (6,687) | (7,260) | (8,467)
Dividends to non-controlling interests of subsidiaries | (5,250) | (3,071) | (3,639)
Effect of exchange rate fluctuation of subsidiaries | (35) | 5 | 38
Net increase (decrease) of cash and cash equivalents of subsidiaries | 8,668 | 13,304 | (9,277)
Others |  |  |
Disclosure - Details of non-controlling interest prior to intra-group eliminations [Line Items] |  |  |
Current assets | 1,193,078 | 1,147,973 | 1,030,049
Non-current assets of subsidiaries | 4,639,760 | 4,942,229 | 3,838,233
Current liabilities of subsidiaries | (1,009,791) | (841,521) | (599,373)
Non-current liabilities of subsidiaries | (2,737,589) | (2,944,145) | (2,666,345)
Net assets of subsidiaries | 2,085,458 | 2,304,536 | 1,602,564
Book value of non-controlling interest | 462,581 | 565,796 | 720,761
Sales | 1,212,372 | 1,709,390 | 1,286,002
Profit for the year | 63,145 | 91,566 | 128,264
Profit for the year attributable to non-controlling interest of subsidiaries | 9,355 | (24,370) | 28,914
Cash flows from operating activities of subsidiaries | 368,415 | 231,653 | 303,577
Cash flows from investing activities of subsidiaries | (508,844) | (747,507) | (309,447)
Cash flows from financing activities before dividends to non-controlling interests of subsidiaries | 119,109 | 582,580 | 125,685
Dividends to non-controlling interests of subsidiaries | (20,866) | (4,001) | (2,608)
Effect of exchange rate fluctuation of subsidiaries | 2,813 | (11,023) | 7,243
Net increase (decrease) of cash and cash equivalents of subsidiaries | ₩ (39,373) | ₩ 51,702 | ₩ 124,450

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 2023-01-01 -Paragraph B10 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B10_a&doctype=Appendix&subtype=B -URIDate 2023-03-23 + 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: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 12 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_f&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 10 -IssueDate 2023-01-01 -Paragraph 22 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=10&code=ifrs-tx-2023-en-r&anchor=para_22&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph q -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_q&doctype=Standard -URIDate 2023-03-23 + 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 2023-01-01 -Paragraph 12 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 81B -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_81B_a_i&doctype=Standard -URIDate 2023-03-23 + 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: Subsidiaries [member]; Non-controlling interests] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 12 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_12_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types: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_KEPCOIlijanCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=kep_KEPCOPlantServiceEngineeringMember
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: |