 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LiabilitiesRelatedToRightToOperatePublicFacilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermSecuritiesBorrowedNCLCMD | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermAccruedLiabilitiesNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ContributionPayableForReprocessingOfSpentNuclearFuelNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForDecommissioningOfNuclearPowerUnitsNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNoncurrentLiabilitiesNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:CorporateBondsNCLGAS | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransferFromOtherAccountNCLGAS | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:RoadBuildingBondsPayableNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherBondsPayableNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayableToRoadBuildingNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherLongTermLoansPayableNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermPayablesUnderFluidityLeaseReceivablesNCLLEA | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:GuaranteeReceivedNCLLEA | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForLargeScaleRenovationOfTheShinkansenInfrastructureNCLRWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForLossOnInterestRepaymentNCLSPF | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToShareholdersDirectorsOrEmployees | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccountsPayableOther | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LiabilitiesRelatedToRightToOperatePublicFacilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InvestmentCorporationBondINV | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SpecificBondsPayableLIQ | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SpecificBorrowingsNCLLIQ | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermSecuritiesBorrowedNCLCMD | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccountsPayableOther | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SchoolBondsPayableNCLEDU | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToDirectorsAndOtherEDU | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccruedLiabilitiesNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ContributionPayableForReprocessingOfSpentNuclearFuelNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermDebtToSubsidiariesAndAffiliatesNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForDecommissioningOfNuclearPowerUnitsNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNoncurrentLiabilitiesNCLELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:CorporateBondsNCLGAS | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermDebtToSubsidiariesAndAffiliatesNCLGAS | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransferFromOtherAccountNCLGAS | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:RoadBuildingBondsPayableNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherBondsPayableNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToRoadBuildingNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherLongTermLoansPayableNCLHWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:GuaranteeDepositsReceivedNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToShareholdersDirectorsOrEmployees | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermPayablesUnderFluidityLeaseReceivablesNCLLEA | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccountsPayableOther | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:GuaranteeReceivedNCLLEA | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SocialMedicalCorporationBondsPayableMED | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForLargeScaleRenovationOfTheShinkansenInfrastructureNCLRWY | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForLossOnInterestRepaymentNCLSPF | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermGuaranteeDeposited | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToShareholdersDirectorsOrEmployees | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccountsPayableOther | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyBalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_QuarterlyBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualBalanceSheet |
 | jppfs_cor:ProvisionNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualBalanceSheet |
 | jppfs_cor:OtherNCL | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_SemiAnnualBalanceSheet |
 | jppfs_cor:SpecificBondsPayableLIQ | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SpecificBorrowingsNCLLIQ | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccruedLiabilitiesNCLELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ContributionPayableForReprocessingOfSpentNuclearFuelNCLELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermDebtToSubsidiariesAndAffiliatesNCLELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForDecommissioningOfNuclearPowerUnitsNCLELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNoncurrentLiabilitiesNCLELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SocialMedicalCorporationBondsPayableMED | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SpecificBondsPayableLIQ | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SpecificBorrowingsNCLLIQ | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:BondsPayable | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccruedLiabilitiesNCLELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ContributionPayableForReprocessingOfSpentNuclearFuelNCLELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermDebtToSubsidiariesAndAffiliatesNCLELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForRetirementBenefits | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionForDecommissioningOfNuclearPowerUnitsNCLELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NegativeGoodwill | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNoncurrentLiabilitiesNCLELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SocialMedicalCorporationBondsPayableMED | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayable | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:OtherNCL | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
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