 | jppfs_cor:LiabilitiesRelatedToRightToOperatePublicFacilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermSecuritiesBorrowedNCLCMD | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionNCLAbstract | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:CorporateBondsNCLGAS | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:TransferFromOtherAccountNCLGAS | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:AssetRetirementObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:RoadBuildingBondsPayableNCLHWY | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherBondsPayableNCLHWY | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayableToRoadBuildingNCLHWY | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherLongTermLoansPayableNCLHWY | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermPayablesUnderFluidityLeaseReceivablesNCLLEA | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:GuaranteeReceivedNCLLEA | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForLargeScaleRenovationOfTheShinkansenInfrastructureNCLRWY | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForLossOnInterestRepaymentNCLSPF | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LeaseObligationsNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NetDefinedBenefitLiability | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:BondsPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:ProvisionNCLAbstract | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NegativeGoodwill | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_ConsolidatedBalanceSheet |
 | jppfs_cor:LiabilitiesRelatedToRightToOperatePublicFacilitiesNCL | 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:ProvisionForRetirementBenefits | 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: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:LongTermLoansPayableToSubsidiariesAndAffiliates | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToShareholdersDirectorsOrEmployees | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermAccountsPayableOther | 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:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermSecuritiesBorrowedNCLCMD | 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:LeaseObligationsNCL | 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:LongTermLoansPayableToSubsidiariesAndAffiliates | 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:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | 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: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:LongTermAccountsPayableOther | 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:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | 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: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:ProvisionNCLAbstract | 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:OtherNCL | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:NoncurrentLiabilities | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:SchoolBondsPayableNCLEDU | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToDirectorsAndOtherEDU | 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:LongTermLoansPayable | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_BalanceSheet |
 | jppfs_cor:ProvisionNCLAbstract | 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:NoncurrentLiabilities | 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:ProvisionForRetirementBenefits | 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 |
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 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_hwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_hwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:InvestmentCorporationBondINV | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:AssetRetirementObligationsNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:TenantLeaseholdAndSecurityDepositsINV | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:TenantLeaseholdAndSecurityDepositsInTrustINV | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_inv_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForRetirementBenefits | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ivt_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ivt_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ivt_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NegativeGoodwill | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ivt_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_ivt_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermPayablesUnderFluidityLeaseReceivablesNCLLEA | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:GuaranteeReceivedNCLLEA | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForRetirementBenefits | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LeaseObligationsNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:BondsPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayableToShareholdersDirectorsOrEmployees | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermAccountsPayableOther | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NegativeGoodwill | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_lea_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForLargeScaleRenovationOfTheShinkansenInfrastructureNCLRWY | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermAccountsPayableRailwayEquipmentNCLRWY | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermAccountsPayableToJapanRailwayConstructionTransportAndTechnologyAgencyNCLRWY | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:BondsPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NegativeGoodwill | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForRetirementBenefits | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_sec_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_sec_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_sec_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NegativeGoodwill | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_sec_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_sec_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_sec_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForLossOnInterestRepaymentNCLSPF | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForRetirementBenefits | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionForDirectorsRetirementBenefits | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermGuaranteeDeposited | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:BondsPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NegativeGoodwill | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_spf_BalanceSheet-ListOfAccounts |
 | jppfs_cor:BondsPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayable | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayableToSubsidiariesAndAffiliates | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:ProvisionNCLAbstract | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermLoansPayableToShareholdersDirectorsOrEmployees | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:LongTermAccountsPayableOther | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:DeferredTaxLiabilitiesNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NegativeGoodwill | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:OtherNCL | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |
 | jppfs_cor:NoncurrentLiabilities | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_wat_BalanceSheet-ListOfAccounts |