 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NonOperatingFacilitiesELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ConstructionInProgressELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NuclearFuelNCAELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InvestmentsAndOtherAssets | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NonOperatingFacilitiesELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ConstructionInProgressELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NuclearFuelNCAELE | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InvestmentsAndOtherAssets | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NonOperatingFacilitiesELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ConstructionInProgressELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NuclearFuelNCAELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InvestmentsAndOtherAssets | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NonOperatingFacilitiesELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ConstructionInProgressELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NuclearFuelNCAELE | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InvestmentsAndOtherAssets | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NonOperatingFacilitiesELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ConstructionInProgressELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NuclearFuelNCAELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:InvestmentsAndOtherAssets | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NonOperatingFacilitiesELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ConstructionInProgressELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NuclearFuelNCAELE | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:InvestmentsAndOtherAssets | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ElectricUtilityPlantAndEquipmentAssetsELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:IncidentalBusinessFacilitiesELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NonOperatingFacilitiesELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNoncurrentAssetsELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ConstructionInProgressELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NuclearFuelNCAELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:InvestmentsAndOtherAssets | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |
 | jppfs_cor:PlantAndEquipmentAndIntangibleAssetsELE | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ele_BalanceSheet-ListOfAccounts |