E0133258010古河電気工業株式会社Furukawa Electric Co., Ltd.企業内容等の開示に関する内閣府令第四号の三様式Japan GAAPtruecte2022-04-012022-12-31Q32023-03-312021-04-012021-12-312022-03-311falsefalsefalseE01332-0002023-02-10E01332-0002021-04-012021-12-31E01332-0002021-04-012022-03-31E01332-0002022-04-012022-12-31E01332-0002021-12-31E01332-0002022-03-31E01332-0002022-12-31E01332-0002021-10-012021-12-31E01332-0002022-10-012022-12-31E01332-0002023-02-10jpcrp_cor:OrdinaryShareMemberE01332-0002022-12-31jpcrp_cor:SharesWithNoVotingRightsMemberE01332-0002022-12-31jpcrp_cor:SharesWithRestrictedVotingRightsTreasurySharesEtcMemberE01332-0002022-12-31jpcrp_cor:SharesWithRestrictedVotingRightsOtherMemberE01332-0002022-12-31jpcrp_cor:OrdinarySharesTreasurySharesSharesWithFullVotingRightsTreasurySharesEtcMemberE01332-0002022-12-31jpcrp_cor:OrdinarySharesReciprocalHoldingSharesWithFullVotingRightsTreasurySharesEtcMemberE01332-0002022-12-31jpcrp_cor:OrdinarySharesSharesWithFullVotingRightsOtherMemberE01332-0002022-12-31jpcrp_cor:OrdinarySharesSharesLessThanOneUnitMemberE01332-0002022-12-31jpcrp_cor:Row1MemberE01332-0002022-12-31jpcrp_cor:Row2MemberE01332-0002022-04-012022-12-31jpcrp040300-q3r_E01332-000:InfrastructureReportableSegmentMemberE01332-0002021-04-012021-12-31jpcrp040300-q3r_E01332-000:InfrastructureReportableSegmentMemberE01332-0002021-04-012021-12-31jpcrp040300-q3r_E01332-000:AutomotiveProductsAndMaterialsReportableSegmentMemberE01332-0002022-04-012022-12-31jpcrp040300-q3r_E01332-000:AutomotiveProductsAndMaterialsReportableSegmentMemberE01332-0002022-04-012022-12-31jpcrp040300-q3r_E01332-000:FunctionalProductsReportableSegmentMemberE01332-0002021-04-012021-12-31jpcrp040300-q3r_E01332-000:FunctionalProductsReportableSegmentMemberE01332-0002022-04-012022-12-31jpcrp040300-q3r_E01332-000:ServiceAndDevelopmentsEtcReportableSegmentMemberE01332-0002021-04-012021-12-31jpcrp040300-q3r_E01332-000:ServiceAndDevelopmentsEtcReportableSegmentMemberE01332-0002021-04-012021-12-31jpcrp_cor:TotalOfReportableSegmentsAndOthersMemberE01332-0002022-04-012022-12-31jpcrp_cor:TotalOfReportableSegmentsAndOthersMemberE01332-0002022-04-012022-12-31jpcrp_cor:ReconcilingItemsMemberE01332-0002021-04-012021-12-31jpcrp_cor:ReconcilingItemsMemberiso4217:JPYiso4217:JPYxbrli:sharesxbrli:purexbrli:shares