XML 240 R225.htm IDEA: XBRL DOCUMENT
v3.23.1

Other Income and Expense (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Other non-operating income [Abstract] |  |  |
Reversal of other provisions | ₩ 15,265 | ₩ 15,548 | ₩ 25,826
Reversal of other allowance for doubtful accounts | 37 | 98 | 2,465
Gains on government grants | 301 | 458 | 269
Gains on assets contributed | 1,953 | 9,347 | 24,324
Gains on liabilities exempted | 1,181 | 1,830 | 1,314
Compensation and reparations revenue | 89,638 | 104,826 | 95,407
Revenue from foundation fund | 3 | 1 | 0
Revenue from research contracts | 8,191 | 5,996 | 4,001
Income related to transfer of assets from customers | 711,839 | 661,212 | 643,477
Rental income | 208,064 | 204,123 | 193,567
Others of Other Income | 59,017 | 30,694 | 45,798
Refund of claim for rectification | 701 | 7,274 | 11,880
Adjustment of research project | 0 | 7,638 | 2,150
Maintenance expenses on lease building | 125 | 160 | 2,785
Training expenses | 1,684 | 1,739 | 3,852
Deposit redemption | 12 | 378 | 314
Reversal of expenses on litigation | 1,920 | 991 | 620
Revenue on royalty fee | 455 | 173 | 0
Reimbursement of insurance fee | 0 | 1 | 22
Gains on guarantee contracts | 22 | 27 | 134
Miscellaneous other non-operating income | 54,098 | 12,313 | 24,041
Other nonoperating income | 1,095,489 | 1,034,133 | 1,036,448
Other non-operating expense |  |  |
Compensation and indemnification expense | 36 | 663 | 11,959
Accretion expenses of other provisions | 1,138 | 2,711 | 17,991
Depreciation expenses on investment properties | 486 | 1,386 | 1,453
Depreciation expenses on idle assets | 3,635 | 3,621 | 6,604
Other bad debt expense | 6,400 | 49,372 | 32,503
Donations | 131,037 | 152,456 | 316,981
Others of Other Expense | 69,418 | 47,723 | 30,229
Operating expenses related to the idle assets | 1,683 | 44 | 46
Research grants | 562 | 109 | 91
Expenses related to farming and fishing village supports | 11,272 | 17,065 | 16,115
Expenses related to Operating of a fitness center | 8,370 | 6,948 | 5,101
Expenses on adjustment of research and development grants | 260 | 2,241 | 720
Taxes and dues | 31,985 | 119 | 253
Expenses on R&D supports | 48 | 861 | 242
Miscellaneous other non-operating expense | 15,238 | 20,336 | 7,661
Other Nonoperating Expense | ₩ 212,150 | ₩ 257,932 | ₩ 417,720

X
- Definition The amount of depreciation recognised on investment property. [Refer: Depreciation and amortisation expense; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2022-03-24 -Paragraph 76 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2022-en-r&anchor=para_76&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2022-03-24 -Paragraph 79 -Subparagraph d -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2022-en-r&anchor=para_79_d_iv&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DepreciationInvestmentProperty
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense arising from donations and subsidies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DonationsAndSubsidiesExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of reversals of provisions that the entity does not separately disclose in the same statement or note. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 98 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_98_g&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_OtherReversalsOfProvisions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of income recognised from rental activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_RentalIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of income recognised in relation to government grants. [Refer: Government grants] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 20 -IssueDate 2022-03-24 -Paragraph 39 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2022-en-r&anchor=para_39_b&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_RevenueFromGovernmentGrants
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of income arising from royalties. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_RevenueFromRoyalties
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Adjustment of research project. + References No definition available. + Details
Name: | kep_AdjustmentOfResearchProject
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Compensation and reparations revenue. + References No definition available. + Details
Name: | kep_CompensationAndReparationsRevenue
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Deposit redemption. + References No definition available. + Details
Name: | kep_DepositRedemption
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Depreciation expense on property plant and equipment temporarily idle. + References No definition available. + Details
Name: | kep_DepreciationExpenseOnPropertyPlantAndEquipmentTemporarilyIdle
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Training expenses. + References No definition available. + Details
Name: | kep_ExpensesOfOtherCommisions
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Expenses on adjustment of research and development grants. + References No definition available. + Details
Name: | kep_ExpensesOnAdjustmentOfResearchAndDevelopmentGrants
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Expenses on R&D supporting. + References No definition available. + Details
Name: | kep_ExpensesOnRnDSupporting
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Gains on assets contributed. + References No definition available. + Details
Name: | kep_GainsFromAssetsContributed
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Income related to transfer of assets from customers. + References No definition available. + Details
Name: | kep_GainsFromContributionToConstruction
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue from research contracts. + References No definition available. + Details
Name: | kep_GainsFromOtherEntrustedBusiness
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gains on guarantee contracts. + References No definition available. + Details
Name: | kep_GainsOnGuaranteeContracts
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gains on liabilities exempted. + References No definition available. + Details
Name: | kep_GainsOnLiabilitiesExempted
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maintenance expenses on lease building. + References No definition available. + Details
Name: | kep_MaintenanceExpensesOnLeaseBuilding
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Miscellaneous other non-operating expense. + References No definition available. + Details
Name: | kep_MiscellaneousOtherNonoperatingExpense
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Miscellaneous other non-operating income. + References No definition available. + Details
Name: | kep_MiscellaneousOtherNonoperatingIncome
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Operating expenses on fitness center. + References No definition available. + Details
Name: | kep_OperatingExpensesOnFitnessCenter
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_OperatingExpensesRelatedToTheIdleAssets
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other bad debt expense. + References No definition available. + Details
Name: | kep_OtherBadDebtExpenses
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other nonoperating expense. + References No definition available. + Details
Name: | kep_OtherNonoperatingExpense
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other non-operating expense. + References No definition available. + Details
Name: | kep_OtherNonoperatingExpenseAbstract
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other non-operating income. + References No definition available. + Details
Name: | kep_OtherNonoperatingIncome
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Others of miscellaneous other nonoperating expense. + References No definition available. + Details
Name: | kep_OthersOfMiscellaneousOtherNonoperatingExpense
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Others of miscellaneous other nonoperating income. + References No definition available. + Details
Name: | kep_OthersOfMiscellaneousOtherNonoperatingIncome
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Refund of claim for rectification. + References No definition available. + Details
Name: | kep_RefundOfClaimForRectification
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Compensation and indemnification expense. + References No definition available. + Details
Name: | kep_ReimbursementExpenses
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reimbursement of insurance fee. + References No definition available. + Details
Name: | kep_ReimbursementOfInsuranceFee
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Research grants. + References No definition available. + Details
Name: | kep_ResearchGrants
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Revenue from foundation fund. + References No definition available. + Details
Name: | kep_RevenueFromFoundationFund
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reversal of expenses on litigation. + References No definition available. + Details
Name: | kep_ReversalOfExpensesOnLitigation
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reversal of Allowance for Doubtful Accounts. + References No definition available. + Details
Name: | kep_ReversalsOfAllowanceForOtherDoubtfulAccounts
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Supporting expenses on farming and fishing village. + References No definition available. + Details
Name: | kep_SupportingExpensesOnFarmingAndFishingVillage
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Taxes and dues. + References No definition available. + Details
Name: | kep_TaxesAndDues
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Accretion expenses of other provisions. + References No definition available. + Details
Name: | kep_TransferredAmountOfProvisionOfOtherAllowance
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration