 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:HydroelectricPowerProductionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ThermalPowerProductionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NuclearPowerProductionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:InternalCombustionEnginePowerProductionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:RenewablePowerProductionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:TransmissionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:TransformationFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DistributionFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:GeneralFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:InactiveFacilitiesNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:FacilitiesLoanedNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherElectricUtilityPlantAndEquipmentNCAElectricELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |