0001232384false--12-312020FY0000099070false--12-312020FY1P1Yus-gaap:OtherLiabilitiesNoncurrentus-gaap:OtherLiabilitiesNoncurrentus-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrentus-gaap:AccountsPayableAndOtherAccruedLiabilitiesCurrentus-gaap:PropertyPlantAndEquipmentus-gaap:PropertyPlantAndEquipment33.3333.3333.34P3Y00012323842020-01-012020-12-310001232384trp:TransCanadaPipeLinesLimitedMember2020-01-012020-12-310001232384dei:BusinessContactMember2020-01-012020-12-31xbrli:shares00012323842020-12-310001232384trp:TransCanadaPipeLinesLimitedMember2020-12-31iso4217:CAD0001232384trp:CanadianNaturalGasPipelinesMember2020-01-012020-12-310001232384trp:CanadianNaturalGasPipelinesMember2019-01-012019-12-310001232384trp:CanadianNaturalGasPipelinesMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMember2018-01-012018-12-310001232384trp:MexicoNaturalGasPipelinesMember2020-01-012020-12-310001232384trp:MexicoNaturalGasPipelinesMember2019-01-012019-12-310001232384trp:MexicoNaturalGasPipelinesMember2018-01-012018-12-310001232384trp:LiquidsPipelinesSegmentMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMember2019-01-012019-12-310001232384trp:LiquidsPipelinesSegmentMember2018-01-012018-12-310001232384trp:PowerandStorageSegmentMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMember2019-01-012019-12-310001232384trp:PowerandStorageSegmentMember2018-01-012018-12-3100012323842019-01-012019-12-3100012323842018-01-012018-12-31iso4217:CADxbrli:shares00012323842019-12-3100012323842018-12-3100012323842017-12-310001232384us-gaap:CommonStockMember2019-12-310001232384us-gaap:CommonStockMember2018-12-310001232384us-gaap:CommonStockMember2017-12-310001232384us-gaap:CommonStockMember2020-01-012020-12-310001232384us-gaap:CommonStockMember2019-01-012019-12-310001232384us-gaap:CommonStockMember2018-01-012018-12-310001232384us-gaap:CommonStockMember2020-12-310001232384us-gaap:PreferredStockMember2020-12-310001232384us-gaap:PreferredStockMember2019-12-310001232384us-gaap:PreferredStockMember2018-12-310001232384us-gaap:AdditionalPaidInCapitalMember2018-12-310001232384us-gaap:AdditionalPaidInCapitalMember2020-01-012020-12-310001232384us-gaap:AdditionalPaidInCapitalMember2019-01-012019-12-310001232384us-gaap:AdditionalPaidInCapitalMember2018-01-012018-12-310001232384us-gaap:AdditionalPaidInCapitalMember2020-12-310001232384us-gaap:RetainedEarningsMember2019-12-310001232384us-gaap:RetainedEarningsMember2018-12-310001232384us-gaap:RetainedEarningsMember2017-12-310001232384us-gaap:RetainedEarningsMember2020-01-012020-12-310001232384us-gaap:RetainedEarningsMember2019-01-012019-12-310001232384us-gaap:RetainedEarningsMember2018-01-012018-12-310001232384us-gaap:RetainedEarningsMember2020-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2017-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310001232384us-gaap:ParentMember2020-12-310001232384us-gaap:ParentMember2019-12-310001232384us-gaap:ParentMember2018-12-310001232384us-gaap:NoncontrollingInterestMember2019-12-310001232384us-gaap:NoncontrollingInterestMember2018-12-310001232384us-gaap:NoncontrollingInterestMember2017-12-310001232384us-gaap:NoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:NoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:NoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:NoncontrollingInterestMember2020-12-31trp:segmentutr:km0001232384trp:CanadianNaturalGasPipelinesMember2020-12-31utr:mi0001232384trp:U.S.NaturalGasPipelinesMember2020-12-31utr:Bcf0001232384trp:MexicoNaturalGasPipelinesMember2020-12-310001232384trp:LiquidsPipelinesSegmentMember2020-12-31trp:plant0001232384trp:PowerandStorageSegmentMember2020-12-31xbrli:pure0001232384us-gaap:PipelinesMembertrp:NaturalGasPipelinesSegmentMembersrt:MinimumMember2020-01-012020-12-310001232384us-gaap:PipelinesMembersrt:MaximumMembertrp:NaturalGasPipelinesSegmentMember2020-01-012020-12-310001232384us-gaap:PipelinesMembersrt:MinimumMembertrp:MidstreamMember2020-01-012020-12-310001232384us-gaap:PipelinesMembersrt:MaximumMembertrp:MidstreamMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:PipelinesMembersrt:MinimumMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:PipelinesMembersrt:MaximumMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMemberus-gaap:EnergyEquipmentMembersrt:MinimumMember2020-01-012020-12-310001232384srt:MaximumMembertrp:PowerandStorageSegmentMemberus-gaap:EnergyEquipmentMember2020-01-012020-12-310001232384us-gaap:CorporateNonSegmentMembersrt:MinimumMember2020-01-012020-12-310001232384us-gaap:CorporateNonSegmentMembersrt:MaximumMember2020-01-012020-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001232384us-gaap:IntersegmentEliminationMember2020-01-012020-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-01-012020-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMember2020-01-012020-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2020-01-012020-12-310001232384trp:CorporateAndEliminationsMember2020-01-012020-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001232384trp:PowerandStorageSegmentMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001232384us-gaap:IntersegmentEliminationMember2019-01-012019-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-01-012019-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-01-012019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMember2019-01-012019-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2019-01-012019-12-310001232384trp:CorporateAndEliminationsMember2019-01-012019-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2018-01-012018-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:IntersegmentEliminationMember2018-01-012018-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:IntersegmentEliminationMember2018-01-012018-12-310001232384trp:PowerandStorageSegmentMemberus-gaap:IntersegmentEliminationMember2018-01-012018-12-310001232384us-gaap:IntersegmentEliminationMember2018-01-012018-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2018-01-012018-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2018-01-012018-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMember2018-01-012018-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2018-01-012018-12-310001232384trp:CorporateAndEliminationsMember2018-01-012018-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2020-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2019-12-310001232384trp:CorporateAndEliminationsMember2020-12-310001232384trp:CorporateAndEliminationsMember2019-12-310001232384trp:CanadaDomesticMember2020-01-012020-12-310001232384trp:CanadaDomesticMember2019-01-012019-12-310001232384trp:CanadaDomesticMember2018-01-012018-12-310001232384trp:CanadaExportMember2020-01-012020-12-310001232384trp:CanadaExportMember2019-01-012019-12-310001232384trp:CanadaExportMember2018-01-012018-12-310001232384country:US2020-01-012020-12-310001232384country:US2019-01-012019-12-310001232384country:US2018-01-012018-12-310001232384trp:MexicoandInternationalMember2020-01-012020-12-310001232384trp:MexicoandInternationalMember2019-01-012019-12-310001232384trp:MexicoandInternationalMember2018-01-012018-12-310001232384country:CA2020-12-310001232384country:CA2019-12-310001232384country:US2020-12-310001232384country:US2019-12-310001232384trp:MexicoandInternationalMember2020-12-310001232384trp:MexicoandInternationalMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2020-01-012020-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:CapacityArrangementsAndTransportationMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMembertrp:CapacityArrangementsAndTransportationMember2020-01-012020-12-310001232384trp:CapacityArrangementsAndTransportationMember2020-01-012020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:PowerGenerationMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PowerGenerationMember2020-01-012020-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:PowerGenerationMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:PowerGenerationMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMembertrp:PowerGenerationMember2020-01-012020-12-310001232384trp:PowerGenerationMember2020-01-012020-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:CanadianNaturalGasPipelinesMember2020-01-012020-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:U.S.NaturalGasPipelinesMember2020-01-012020-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:MexicoNaturalGasPipelinesMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:NaturalGasStorageAndOtherMember2020-01-012020-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:PowerandStorageSegmentMember2020-01-012020-12-310001232384trp:NaturalGasStorageAndOtherMember2020-01-012020-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:SurdeTexasTransmissionSystemMember2020-01-012020-12-310001232384trp:SurdeTexasTransmissionSystemMembertrp:MexicoNaturalGasPipelinesMember2020-12-310001232384trp:CoastalGasLinkPipelineProjectMembertrp:NaturalGasStorageAndOtherMember2020-01-012020-12-310001232384trp:CoastalGasLinkPipelineProjectMembertrp:CanadianNaturalGasPipelinesMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2019-01-012019-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2019-01-012019-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:CapacityArrangementsAndTransportationMember2019-01-012019-12-310001232384trp:PowerandStorageSegmentMembertrp:CapacityArrangementsAndTransportationMember2019-01-012019-12-310001232384trp:CapacityArrangementsAndTransportationMember2019-01-012019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:PowerGenerationMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PowerGenerationMember2019-01-012019-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:PowerGenerationMember2019-01-012019-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:PowerGenerationMember2019-01-012019-12-310001232384trp:PowerandStorageSegmentMembertrp:PowerGenerationMember2019-01-012019-12-310001232384trp:PowerGenerationMember2019-01-012019-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:CanadianNaturalGasPipelinesMember2019-01-012019-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:U.S.NaturalGasPipelinesMember2019-01-012019-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:MexicoNaturalGasPipelinesMember2019-01-012019-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:NaturalGasStorageAndOtherMember2019-01-012019-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:PowerandStorageSegmentMember2019-01-012019-12-310001232384trp:NaturalGasStorageAndOtherMember2019-01-012019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2018-01-012018-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:CapacityArrangementsAndTransportationMember2018-01-012018-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:CapacityArrangementsAndTransportationMember2018-01-012018-12-310001232384trp:PowerandStorageSegmentMembertrp:CapacityArrangementsAndTransportationMember2018-01-012018-12-310001232384trp:CapacityArrangementsAndTransportationMember2018-01-012018-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:PowerGenerationMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PowerGenerationMember2018-01-012018-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:PowerGenerationMember2018-01-012018-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:PowerGenerationMember2018-01-012018-12-310001232384trp:PowerandStorageSegmentMembertrp:PowerGenerationMember2018-01-012018-12-310001232384trp:PowerGenerationMember2018-01-012018-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:CanadianNaturalGasPipelinesMember2018-01-012018-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:U.S.NaturalGasPipelinesMember2018-01-012018-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:MexicoNaturalGasPipelinesMember2018-01-012018-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:NaturalGasStorageAndOtherMember2018-01-012018-12-310001232384trp:NaturalGasStorageAndOtherMembertrp:PowerandStorageSegmentMember2018-01-012018-12-310001232384trp:NaturalGasStorageAndOtherMember2018-01-012018-12-3100012323842021-01-012020-12-310001232384us-gaap:PipelinesMembertrp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:PipelinesMembertrp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2020-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2019-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384trp:NGTLSystemMemberus-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:NGTLSystemMemberus-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMember2020-12-310001232384trp:NGTLSystemMemberus-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:NGTLSystemMemberus-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMember2019-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:NGTLSystemMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:PipelinesMembertrp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:PipelinesMembertrp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CompressionMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CompressionMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384us-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:CanadianMainlineMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:NaturalGasPipelinesOtherMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:NaturalGasPipelinesOtherMembertrp:CanadianNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:AssetUnderConstructionMembertrp:CanadianNaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:PipelinesMembertrp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:PipelinesMembertrp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2020-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2019-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384trp:ColumbiaGasTransmissionMemberus-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:ColumbiaGasTransmissionMemberus-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:ColumbiaGasTransmissionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:PipelinesMembertrp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:PipelinesMembertrp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2020-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2019-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384trp:ANRMemberus-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:ANRMemberus-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:ANRMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:ColumbiaGulfTransmissionMember2020-12-310001232384us-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:ColumbiaGulfTransmissionMember2019-12-310001232384trp:GTNMemberus-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:GTNMemberus-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMembertrp:GreatLakesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMembertrp:GreatLakesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:NaturalGasPipelinesOtherMemberus-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:NaturalGasPipelinesOtherMemberus-gaap:PipelinesMembertrp:U.S.NaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384us-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:AssetUnderConstructionMembertrp:U.S.NaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384us-gaap:PipelinesMembertrp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:PipelinesMembertrp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2020-12-310001232384trp:MexicoNaturalGasPipelinesMembertrp:CompressionMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2020-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:MeteringAndOtherMember2019-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384us-gaap:AssetUnderConstructionMembertrp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2020-12-310001232384us-gaap:AssetUnderConstructionMembertrp:MexicoNaturalGasPipelinesMemberus-gaap:OperatingSegmentsMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:PipelinesMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:PipelinesMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2019-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:PumpingEquipmentMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2020-12-310001232384trp:LiquidsPipelinesSegmentMembertrp:PumpingEquipmentMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:TanksAndOtherMembertrp:KeystoneMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:TanksAndOtherMembertrp:KeystoneMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:AssetUnderConstructionMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:AssetUnderConstructionMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:KeystoneMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:PipelinesMemberus-gaap:OperatingSegmentsMembertrp:IntraAlbertaPipelinesMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:PipelinesMemberus-gaap:OperatingSegmentsMembertrp:IntraAlbertaPipelinesMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:TanksAndOtherMembertrp:IntraAlbertaPipelinesMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:TanksAndOtherMembertrp:IntraAlbertaPipelinesMember2019-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMembertrp:IntraAlbertaPipelinesMember2020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:OperatingSegmentsMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMembertrp:IntraAlbertaPipelinesMember2019-12-310001232384srt:NaturalGasReservesMemberus-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2020-12-310001232384srt:NaturalGasReservesMemberus-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2019-12-310001232384trp:NaturalGasStorageEquipmentMemberus-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2020-12-310001232384trp:NaturalGasStorageEquipmentMemberus-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2019-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2020-12-310001232384us-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMembertrp:PropertyPlantAndEquipmentExcludingAssetUnderConstructionMember2019-12-310001232384us-gaap:AssetUnderConstructionMemberus-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2020-12-310001232384us-gaap:AssetUnderConstructionMemberus-gaap:OperatingSegmentsMembertrp:PowerandStorageSegmentMember2019-12-310001232384us-gaap:CorporateNonSegmentMember2020-12-310001232384us-gaap:CorporateNonSegmentMember2019-12-310001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:CoastalGasLinkPipelineProjectMember2020-05-222020-05-220001232384trp:KeystoneXLMember2020-03-312020-03-310001232384trp:BisonPipelineLLCMember2018-12-312018-12-310001232384trp:TCPipeLinesLPMember2018-12-310001232384srt:MinimumMember2020-12-310001232384srt:MaximumMember2020-12-310001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:NorthernCourierMember2019-07-012019-07-310001232384trp:NorthernCourierMembertrp:LiquidsPipelinesSegmentMember2020-12-310001232384us-gaap:AssetsLeasedToOthersMember2020-12-310001232384us-gaap:AssetsLeasedToOthersMember2019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:TransQuebecAndMaritimesPipelineIncMember2020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:TransQuebecAndMaritimesPipelineIncMember2020-01-012020-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:TransQuebecAndMaritimesPipelineIncMember2019-01-012019-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:TransQuebecAndMaritimesPipelineIncMember2018-01-012018-12-310001232384trp:CanadianNaturalGasPipelinesMembertrp:TransQuebecAndMaritimesPipelineIncMember2019-12-310001232384trp:CoastalGasLinkPipelineProjectMembertrp:CanadianNaturalGasPipelinesMember2020-01-012020-12-310001232384trp:CoastalGasLinkPipelineProjectMembertrp:CanadianNaturalGasPipelinesMember2019-01-012019-12-310001232384trp:CoastalGasLinkPipelineProjectMembertrp:CanadianNaturalGasPipelinesMember2018-01-012018-12-310001232384trp:CoastalGasLinkPipelineProjectMembertrp:CanadianNaturalGasPipelinesMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:NorthernBorderPipelineCompanyMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:NorthernBorderPipelineCompanyMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:NorthernBorderPipelineCompanyMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:NorthernBorderPipelineCompanyMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:NorthernBorderPipelineCompanyMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:MillenniumGasTransmissionSystemLPMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:MillenniumGasTransmissionSystemLPMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:MillenniumGasTransmissionSystemLPMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:MillenniumGasTransmissionSystemLPMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:MillenniumGasTransmissionSystemLPMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:IroquoisGasTransmissionSystemLPMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:IroquoisGasTransmissionSystemLPMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:IroquoisGasTransmissionSystemLPMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:IroquoisGasTransmissionSystemLPMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:IroquoisGasTransmissionSystemLPMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PennantMidstreamGasTransmissionSystemMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PennantMidstreamGasTransmissionSystemMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PennantMidstreamGasTransmissionSystemMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PennantMidstreamGasTransmissionSystemMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:PennantMidstreamGasTransmissionSystemMember2019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherEquityMethodInvesteeMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherEquityMethodInvesteeMember2019-01-012019-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherEquityMethodInvesteeMember2018-01-012018-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherEquityMethodInvesteeMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMembertrp:OtherEquityMethodInvesteeMember2019-12-310001232384trp:SurdeTexasTransmissionSystemMembertrp:MexicoNaturalGasPipelinesMember2020-01-012020-12-310001232384trp:SurdeTexasTransmissionSystemMembertrp:MexicoNaturalGasPipelinesMember2019-01-012019-12-310001232384trp:SurdeTexasTransmissionSystemMembertrp:MexicoNaturalGasPipelinesMember2018-01-012018-12-310001232384trp:SurdeTexasTransmissionSystemMembertrp:MexicoNaturalGasPipelinesMember2019-12-310001232384trp:GrandRapidsMembertrp:LiquidsPipelinesSegmentMember2020-12-310001232384trp:GrandRapidsMembertrp:LiquidsPipelinesSegmentMember2020-01-012020-12-310001232384trp:GrandRapidsMembertrp:LiquidsPipelinesSegmentMember2019-01-012019-12-310001232384trp:GrandRapidsMembertrp:LiquidsPipelinesSegmentMember2018-01-012018-12-310001232384trp:GrandRapidsMembertrp:LiquidsPipelinesSegmentMember2019-12-310001232384trp:NorthernCourierMembertrp:LiquidsPipelinesSegmentMember2020-01-012020-12-310001232384trp:NorthernCourierMembertrp:LiquidsPipelinesSegmentMember2019-01-012019-12-310001232384trp:NorthernCourierMembertrp:LiquidsPipelinesSegmentMember2018-01-012018-12-310001232384trp:NorthernCourierMembertrp:LiquidsPipelinesSegmentMember2019-12-310001232384trp:HoustonLinkPipelineMembertrp:LiquidsPipelinesSegmentMember2020-12-310001232384trp:HoustonLinkPipelineMembertrp:LiquidsPipelinesSegmentMember2020-01-012020-12-310001232384trp:HoustonLinkPipelineMembertrp:LiquidsPipelinesSegmentMember2019-01-012019-12-310001232384trp:HoustonLinkPipelineMembertrp:LiquidsPipelinesSegmentMember2018-01-012018-12-310001232384trp:HoustonLinkPipelineMembertrp:LiquidsPipelinesSegmentMember2019-12-310001232384trp:BrucePowerMembertrp:PowerandStorageSegmentMember2020-12-310001232384trp:BrucePowerMembertrp:PowerandStorageSegmentMember2020-01-012020-12-310001232384trp:BrucePowerMembertrp:PowerandStorageSegmentMember2019-01-012019-12-310001232384trp:BrucePowerMembertrp:PowerandStorageSegmentMember2018-01-012018-12-310001232384trp:BrucePowerMembertrp:PowerandStorageSegmentMember2019-12-310001232384trp:PortlandsEnergyMembertrp:PowerandStorageSegmentMember2020-01-012020-12-310001232384trp:PortlandsEnergyMembertrp:PowerandStorageSegmentMember2019-01-012019-12-310001232384trp:PortlandsEnergyMembertrp:PowerandStorageSegmentMember2018-01-012018-12-310001232384trp:PortlandsEnergyMembertrp:PowerandStorageSegmentMember2020-12-310001232384trp:PortlandsEnergyMembertrp:PowerandStorageSegmentMember2019-12-310001232384trp:PowerandStorageSegmentMembertrp:TransCanadaTurbinesMember2020-12-310001232384trp:PowerandStorageSegmentMembertrp:TransCanadaTurbinesMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMembertrp:TransCanadaTurbinesMember2019-01-012019-12-310001232384trp:PowerandStorageSegmentMembertrp:TransCanadaTurbinesMember2018-01-012018-12-310001232384trp:PowerandStorageSegmentMembertrp:TransCanadaTurbinesMember2019-12-31iso4217:USD0001232384trp:GrandRapidsMember2020-12-310001232384trp:GrandRapidsMember2019-12-310001232384trp:NorthernCourierMember2020-12-310001232384trp:NorthernCourierMember2019-12-310001232384trp:PowerandStorageSegmentMembertrp:TransCanadaTurbinesMember2020-11-130001232384trp:SurdeTexasTransmissionSystemMember2019-01-012019-12-310001232384trp:SurdeTexasTransmissionSystemMember2018-01-012018-12-310001232384us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2020-01-012020-12-310001232384us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2019-01-012019-12-310001232384us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2018-01-012018-12-310001232384us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2020-12-310001232384us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2019-12-310001232384trp:CoastalGasLinkPipelineLimitedPartnershipMemberus-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMember2020-12-31iso4217:MXN0001232384us-gaap:CorporateJointVentureMemberus-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMembertrp:SurdeTexasTransmissionSystemMember2017-12-310001232384trp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2020-12-310001232384trp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2019-12-310001232384us-gaap:OtherNonoperatingIncomeExpenseMembertrp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2020-01-012020-12-310001232384us-gaap:OtherNonoperatingIncomeExpenseMembertrp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2019-01-012019-12-310001232384us-gaap:OtherNonoperatingIncomeExpenseMembertrp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2018-01-012018-12-310001232384trp:IncomeLossFromEquityMethodInvestmentsMembertrp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2020-01-012020-12-310001232384trp:IncomeLossFromEquityMethodInvestmentsMembertrp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2019-01-012019-12-310001232384trp:IncomeLossFromEquityMethodInvestmentsMembertrp:SurdeTexasTransmissionSystemMemberus-gaap:CorporateJointVentureMember2018-01-012018-12-310001232384trp:NGTLSystemMember2020-01-012020-12-310001232384trp:NGTLSystemMember2019-01-012019-12-310001232384trp:NGTLSystemMember2018-01-012018-12-310001232384trp:CanadianMainlineMember2014-01-012014-12-310001232384trp:CanadianMainlineMember2017-01-012017-12-310001232384trp:CanadianMainlineMember2018-01-012018-12-310001232384trp:CanadianMainlineMember2020-04-172020-04-170001232384trp:CanadianMainlineMember2020-01-012020-12-310001232384trp:ColumbiaGasTransmissionMember2013-01-012013-12-310001232384trp:ColumbiaGasTransmissionMember2016-01-012016-12-310001232384trp:TCPipeLinesLPMember2020-12-31trp:pipeline0001232384trp:TCPipeLinesLPMember2020-12-310001232384trp:GreatLakesMember2018-02-012018-02-280001232384trp:GreatLakesMember2019-02-012019-02-010001232384us-gaap:DeferredIncomeTaxChargesMember2020-12-310001232384us-gaap:DeferredIncomeTaxChargesMember2019-12-310001232384trp:OperatingAndDebtServiceRegulatoryAssetsMember2020-12-310001232384trp:OperatingAndDebtServiceRegulatoryAssetsMember2019-12-310001232384trp:OperatingAndDebtServiceRegulatoryAssetsMember2020-01-012020-12-310001232384us-gaap:PensionAndOtherPostretirementPlansCostsMember2020-12-310001232384us-gaap:PensionAndOtherPostretirementPlansCostsMember2019-12-310001232384trp:ForeignExchangeOnLongTermDebtMember2020-12-310001232384trp:ForeignExchangeOnLongTermDebtMember2019-12-310001232384trp:ForeignExchangeOnLongTermDebtMembersrt:MinimumMember2020-01-012020-12-310001232384trp:ForeignExchangeOnLongTermDebtMembersrt:MaximumMember2020-01-012020-12-310001232384trp:OtherRegulatoryAssetsMember2020-12-310001232384trp:OtherRegulatoryAssetsMember2019-12-310001232384trp:OperatingAndDebtServiceRegulatoryLiabilitiesMember2020-12-310001232384trp:OperatingAndDebtServiceRegulatoryLiabilitiesMember2019-12-310001232384trp:OperatingAndDebtServiceRegulatoryLiabilitiesMember2020-01-012020-12-310001232384trp:ANRMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2020-12-310001232384trp:ANRMemberus-gaap:PensionAndOtherPostretirementPlansCostsMember2019-12-310001232384trp:LongTermAdjustmentAccountMember2020-12-310001232384trp:LongTermAdjustmentAccountMember2019-12-310001232384trp:LongTermAdjustmentAccountMember2020-01-012020-12-310001232384trp:BridgingAmortizationAccountMember2020-12-310001232384trp:BridgingAmortizationAccountMember2019-12-310001232384trp:BridgingAmortizationAccountMember2020-01-012020-12-310001232384trp:AbandonmentCostsMember2020-12-310001232384trp:AbandonmentCostsMember2019-12-310001232384us-gaap:RemovalCostsMember2020-12-310001232384us-gaap:RemovalCostsMember2019-12-310001232384trp:DeferredIncomeTaxesMember2020-12-310001232384trp:DeferredIncomeTaxesMember2019-12-310001232384trp:DeferredIncomeTaxesUSTaxReformMember2020-12-310001232384trp:DeferredIncomeTaxesUSTaxReformMember2019-12-310001232384trp:OtherRegulatoryLiabilitiesMember2020-12-310001232384trp:OtherRegulatoryLiabilitiesMember2019-12-310001232384us-gaap:PostretirementBenefitCostsMembertrp:ANRMember2020-01-012020-12-310001232384trp:LongTermAdjustmentAccountAmountToBeAmortizedOverOneYearMember2020-12-310001232384trp:LongTermAdjustmentAccountAmountToBeAmortizedOverOneYearMember2020-01-012020-12-310001232384trp:LongTermAdjustmentAccountShortTermAdjustmentsAccountsMember2020-12-310001232384trp:U.S.NaturalGasPipelinesMember2018-12-310001232384trp:U.S.NaturalGasPipelinesMember2019-12-310001232384trp:MidstreamMember2019-08-310001232384trp:TuscaroraGasTransmissionCompanyMember2018-01-012018-12-310001232384trp:TuscaroraGasTransmissionCompanyMember2020-12-310001232384trp:TuscaroraGasTransmissionCompanyMember2019-12-310001232384trp:KeystoneXLMember2019-12-31trp:party0001232384trp:CoastalGasLinkPipelineProjectMember2018-11-012018-11-300001232384us-gaap:CommercialPaperMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384us-gaap:CommercialPaperMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384trp:TransCanadaAmericanInvestmentsLtd.andTransCanadaPowerMarketingLtd.Memberus-gaap:CommercialPaperMember2020-12-310001232384trp:TransCanadaAmericanInvestmentsLtd.andTransCanadaPowerMarketingLtd.Memberus-gaap:CommercialPaperMember2019-12-310001232384us-gaap:CommercialPaperMembertrp:MexicanSubsidiaryMember2020-12-310001232384us-gaap:CommercialPaperMembertrp:MexicanSubsidiaryMember2019-12-310001232384us-gaap:CommercialPaperMember2020-12-310001232384us-gaap:CommercialPaperMember2019-12-310001232384trp:MexicanSubsidiaryMemberus-gaap:RevolvingCreditFacilityMember2020-12-310001232384trp:RevolvingAndDemandCreditFacilityMember2020-12-310001232384trp:RevolvingAndDemandCreditFacilityMember2019-12-310001232384trp:UnsecuredCreditFacilityMaturingDecember2024Memberus-gaap:RevolvingCreditFacilityMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384trp:UnsecuredCreditFacilityMaturingDecember2024Memberus-gaap:RevolvingCreditFacilityMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384trp:TCPLTCPLUSAColumbiaandTAILMemberus-gaap:RevolvingCreditFacilityMembertrp:UnsecuredCreditFacilityMaturingDecember2021Member2020-12-310001232384trp:TCPLTCPLUSAColumbiaandTAILMemberus-gaap:RevolvingCreditFacilityMembertrp:UnsecuredCreditFacilityMaturingDecember2021Member2019-12-310001232384trp:UnsecuredCreditFacilityMaturingDecember2022Membertrp:TCPLTCPLUSAColumbiaandTAILMemberus-gaap:RevolvingCreditFacilityMember2020-12-310001232384trp:UnsecuredCreditFacilityMaturingDecember2022Membertrp:TCPLTCPLUSAColumbiaandTAILMemberus-gaap:RevolvingCreditFacilityMember2019-12-310001232384us-gaap:RevolvingCreditFacilityMembertrp:TransCanadaPipelinesLimitedandTransCanadaPipelinesUSAMember2020-12-310001232384us-gaap:RevolvingCreditFacilityMembertrp:TransCanadaPipelinesLimitedandTransCanadaPipelinesUSAMember2019-12-310001232384trp:MexicanSubsidiaryMemberus-gaap:RevolvingCreditFacilityMember2019-12-310001232384trp:RevolvingAndDemandCreditFacilityMember2020-06-300001232384us-gaap:RevolvingCreditFacilityMember2020-01-012020-12-310001232384us-gaap:RevolvingCreditFacilityMember2019-01-012019-12-310001232384us-gaap:RevolvingCreditFacilityMember2018-01-012018-12-310001232384srt:SubsidiariesMember2020-12-310001232384srt:SubsidiariesMember2019-12-310001232384us-gaap:DomesticCountryMember2020-12-310001232384us-gaap:DomesticCountryMember2019-12-310001232384us-gaap:DomesticCountryMembertrp:AlternativeMinimumTaxMember2020-12-310001232384us-gaap:DomesticCountryMembertrp:AlternativeMinimumTaxMember2019-12-310001232384us-gaap:InternalRevenueServiceIRSMember2020-12-310001232384us-gaap:InternalRevenueServiceIRSMember2019-12-310001232384us-gaap:MexicanTaxAuthorityMember2020-12-310001232384us-gaap:MexicanTaxAuthorityMember2019-12-310001232384trp:CoastalGasLinkPipelineProjectMember2020-05-222020-05-220001232384trp:DebenturesMaturityDatesBetween2019and2020Membertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384trp:DebenturesMaturityDatesBetween2019and2020Membertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384trp:DebenturesMaturityDateof2021Membertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384trp:DebenturesMaturityDateof2021Membertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384us-gaap:MediumTermNotesMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384us-gaap:MediumTermNotesMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:TransCanadaPipeLinesLimitedMember2019-12-310001232384trp:DebenturesandNotesMaturityDate2024Membertrp:NovaGasTransmissionLTDMember2020-12-310001232384trp:DebenturesandNotesMaturityDate2024Membertrp:NovaGasTransmissionLTDMember2019-12-310001232384trp:DebenturesandNotesMaturityDateof2023Membertrp:NovaGasTransmissionLTDMember2020-12-310001232384trp:DebenturesandNotesMaturityDateof2023Membertrp:NovaGasTransmissionLTDMember2019-12-310001232384trp:MediumTermNotesMaturitybetween2025and2030Membertrp:NovaGasTransmissionLTDMember2020-12-310001232384trp:MediumTermNotesMaturitybetween2025and2030Membertrp:NovaGasTransmissionLTDMember2019-12-310001232384trp:NovaGasTransmissionLTDMembertrp:MediumTermNotesMaturityDateof2026Member2020-12-310001232384trp:NovaGasTransmissionLTDMembertrp:MediumTermNotesMaturityDateof2026Member2019-12-310001232384trp:NovaGasTransmissionLTDMember2020-12-310001232384trp:NovaGasTransmissionLTDMember2019-12-310001232384trp:ColumbiaPipelineGroupIncMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:ColumbiaPipelineGroupIncMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:TCPipeLinesLPMembertrp:UnsecuredTermLoanMember2019-12-310001232384trp:TCPipeLinesLPMembertrp:UnsecuredTermLoanMember2020-12-310001232384trp:TCPipeLinesLPMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:TCPipeLinesLPMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:TCPipeLinesLPMember2019-12-310001232384trp:ANRPipeLineCompanyMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:ANRPipeLineCompanyMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:GasTransmissionNorthwestCorporationMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:GasTransmissionNorthwestCorporationMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:GreatLakesGasTransmissionLimitedPartnershipMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:GreatLakesGasTransmissionLimitedPartnershipMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:PortlandNaturalGasTransmissionSystemMemberus-gaap:UnsecuredDebtMember2020-12-310001232384trp:PortlandNaturalGasTransmissionSystemMemberus-gaap:UnsecuredDebtMember2019-12-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:SeniorUnsecuredNotesMember2020-12-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:SeniorUnsecuredNotesMember2019-12-310001232384trp:PortlandNaturalGasTransmissionSystemMember2020-12-310001232384trp:PortlandNaturalGasTransmissionSystemMember2019-12-310001232384trp:TuscaroraGasTransmissionCompanyMembertrp:UnsecuredTermLoanMember2020-12-310001232384trp:TuscaroraGasTransmissionCompanyMembertrp:UnsecuredTermLoanMember2019-12-310001232384trp:NorthBajaPipelineLLCMembertrp:UnsecuredTermLoanMember2020-12-310001232384trp:NorthBajaPipelineLLCMembertrp:UnsecuredTermLoanMember2019-12-310001232384trp:ColumbiaPipelineGroupIncMember2020-01-012020-12-310001232384trp:ColumbiaPipelineGroupIncMember2019-01-012019-12-310001232384trp:SeniorUnsecuredNotesDueApril2030Membertrp:TransCanadaPipeLinesLimitedMember2020-04-012020-04-300001232384trp:SeniorUnsecuredNotesDueApril2030Membertrp:TransCanadaPipeLinesLimitedMember2020-04-300001232384trp:TransCanadaPipeLinesLimitedMembertrp:MediumTermNotesDueApril2027Member2020-04-012020-04-300001232384trp:TransCanadaPipeLinesLimitedMembertrp:MediumTermNotesDueApril2027Member2020-04-300001232384trp:MediumTermNotesDueSeptember2029Membertrp:TransCanadaPipeLinesLimitedMember2019-09-012019-09-300001232384trp:MediumTermNotesDueSeptember2029Membertrp:TransCanadaPipeLinesLimitedMember2019-09-300001232384trp:TransCanadaPipeLinesLimitedMembertrp:MediumTermNotesDueJuly2048Member2019-09-012019-09-300001232384trp:TransCanadaPipeLinesLimitedMembertrp:MediumTermNotesDueJuly2048Member2019-09-300001232384trp:MediumTermNotesDueOctober2049Membertrp:TransCanadaPipeLinesLimitedMember2019-04-012019-04-300001232384trp:MediumTermNotesDueOctober2049Membertrp:TransCanadaPipeLinesLimitedMember2019-04-300001232384trp:SeniorUnsecuredNotesDueMarch2049Membertrp:TransCanadaPipeLinesLimitedMember2018-10-012018-10-310001232384trp:SeniorUnsecuredNotesDueMarch2049Membertrp:TransCanadaPipeLinesLimitedMember2018-10-310001232384trp:SeniorUnsecuredNotesDueMay2028Membertrp:TransCanadaPipeLinesLimitedMember2018-10-012018-10-310001232384trp:SeniorUnsecuredNotesDueMay2028Membertrp:TransCanadaPipeLinesLimitedMember2018-10-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:MediumTermNotesDueJuly2048Member2018-07-012018-07-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:MediumTermNotesDueJuly2048Member2018-07-310001232384trp:MediumTermNotesDueMarch2028Membertrp:TransCanadaPipeLinesLimitedMember2018-07-012018-07-310001232384trp:MediumTermNotesDueMarch2028Membertrp:TransCanadaPipeLinesLimitedMember2018-07-310001232384trp:SeniorUnsecuredNotesDueMay2028Membertrp:TransCanadaPipeLinesLimitedMember2018-05-012018-05-310001232384trp:SeniorUnsecuredNotesDueMay2028Membertrp:TransCanadaPipeLinesLimitedMember2018-05-310001232384trp:SeniorUnsecuredNotesDueMay2048Membertrp:TransCanadaPipeLinesLimitedMember2018-05-012018-05-310001232384trp:SeniorUnsecuredNotesDueMay2048Membertrp:TransCanadaPipeLinesLimitedMember2018-05-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesDueMay2038Member2018-05-012018-05-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesDueMay2038Member2018-05-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:SeniorUnsecuredNotesDueOctober2030Member2020-10-012020-10-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:SeniorUnsecuredNotesDueOctober2030Member2018-05-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:UnsecuredLoanFacilityDueApril2023Member2018-04-012018-04-300001232384trp:SeniorUnsecuredNotesDueJune2030Membertrp:GasTransmissionNorthwestCorporationMember2020-06-012020-06-300001232384trp:SeniorUnsecuredNotesDueJune2030Membertrp:GasTransmissionNorthwestCorporationMember2020-06-300001232384trp:SeniorSecuredCreditFacilitiesDueApril2027Membertrp:CoastalGasLinkPipelineProjectMember2020-04-012020-04-300001232384trp:NorthernCourierMembertrp:SeniorSecuredNotesDueJune2042Member2019-07-012019-07-310001232384trp:NorthernCourierMembertrp:SeniorSecuredNotesDueJune2042Member2019-07-310001232384trp:UnsecuredTermLoanDueDecember2021Membertrp:NorthBajaPipelineLLCMember2018-12-012018-12-310001232384trp:SeniorSecuredCreditFacilitiesDueApril2027Member2020-04-012020-04-300001232384trp:TransCanadaPipeLinesLimitedMembertrp:DebenturesDueNovember2020Member2020-11-012020-11-300001232384trp:TransCanadaPipeLinesLimitedMembertrp:DebenturesDueNovember2020Member2020-11-300001232384trp:SeniorUnsecuredNotesDueOctober2020Membertrp:TransCanadaPipeLinesLimitedMember2020-10-012020-10-310001232384trp:SeniorUnsecuredNotesDueOctober2020Membertrp:TransCanadaPipeLinesLimitedMember2020-10-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesDueMarch2020Member2020-03-012020-03-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesDueMarch2020Member2020-03-310001232384trp:SeniorUnsecuredNotesDueNovember2019OneMembertrp:TransCanadaPipeLinesLimitedMember2019-11-012019-11-300001232384trp:SeniorUnsecuredNotesDueNovember2019OneMembertrp:TransCanadaPipeLinesLimitedMember2019-11-300001232384trp:SeniorUnsecuredNotesDueNovember2019TwoMembertrp:TransCanadaPipeLinesLimitedMember2019-11-012019-11-300001232384trp:MediumTermNotesDueMay2019Membertrp:TransCanadaPipeLinesLimitedMember2019-05-012019-05-310001232384trp:MediumTermNotesDueMay2019Membertrp:TransCanadaPipeLinesLimitedMember2019-05-310001232384trp:DebenturesDueMarch2019Membertrp:TransCanadaPipeLinesLimitedMember2019-03-012019-03-310001232384trp:DebenturesDueMarch2019Membertrp:TransCanadaPipeLinesLimitedMember2019-03-310001232384trp:SeniorUnsecuredNotesDueJanuary2019OneMembertrp:TransCanadaPipeLinesLimitedMember2019-01-012019-01-310001232384trp:SeniorUnsecuredNotesDueJanuary2019OneMembertrp:TransCanadaPipeLinesLimitedMember2019-01-310001232384trp:SeniorUnsecuredNotesDueJanuary2019TwoMembertrp:TransCanadaPipeLinesLimitedMember2019-01-012019-01-310001232384trp:SeniorUnsecuredNotesDueJanuary2019TwoMembertrp:TransCanadaPipeLinesLimitedMember2019-01-310001232384trp:SeniorUnsecuredNotesDueAugust2018Membertrp:TransCanadaPipeLinesLimitedMember2018-08-012018-08-310001232384trp:SeniorUnsecuredNotesDueAugust2018Membertrp:TransCanadaPipeLinesLimitedMember2018-08-310001232384trp:DebenturesDueMarch2018Membertrp:TransCanadaPipeLinesLimitedMember2018-03-012018-03-310001232384trp:DebenturesDueMarch2018Membertrp:TransCanadaPipeLinesLimitedMember2018-03-310001232384trp:SeniorUnsecuredNotes1.875PercentInterestRateDueJanuary2018Membertrp:TransCanadaPipeLinesLimitedMember2018-01-012018-01-310001232384trp:SeniorUnsecuredNotes1.875PercentInterestRateDueJanuary2018Membertrp:TransCanadaPipeLinesLimitedMember2018-01-310001232384trp:SeniorUnsecuredNotesFloatingRatesDueinJanuary2018Membertrp:TransCanadaPipeLinesLimitedMember2018-01-012018-01-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:UnsecuredLoanFacilityDueOctober2020Member2020-10-012020-10-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:SeniorSecuredNotesDueMay2018Member2018-05-012018-05-310001232384trp:PortlandNaturalGasTransmissionSystemMembertrp:SeniorSecuredNotesDueMay2018Member2018-05-310001232384trp:SeniorUnsecuredNotesDueJune2020Membertrp:ColumbiaPipelineGroupIncMember2020-06-012020-06-300001232384trp:SeniorUnsecuredNotesDueJune2020Membertrp:ColumbiaPipelineGroupIncMember2020-06-300001232384trp:ColumbiaPipelineGroupIncMembertrp:SeniorUnsecuredNotesDueJune2018Member2018-06-012018-06-300001232384trp:ColumbiaPipelineGroupIncMembertrp:SeniorUnsecuredNotesDueJune2018Member2018-06-300001232384trp:SeniorUnsecuredNotesDueJune2020Membertrp:GasTransmissionNorthwestCorporationMember2020-06-012020-06-300001232384trp:SeniorUnsecuredNotesDueJune2020Membertrp:GasTransmissionNorthwestCorporationMember2020-06-300001232384trp:GasTransmissionNorthwestCorporationMembertrp:UnsecuredTermLoanDueMay2019Member2019-05-012019-05-310001232384trp:TCPipeLinesLPMembertrp:UnsecuredTermLoanDueJune2019Member2019-06-012019-06-300001232384trp:TCPipeLinesLPMembertrp:UnsecuredTermLoanDueDecember2018Member2018-12-012018-12-310001232384trp:SeniorUnsecuredNotesDueMarch2018Membertrp:GreatLakesGasTransmissionLimitedPartnershipMember2018-03-012018-03-310001232384trp:SeniorUnsecuredNotesDueMarch2018Membertrp:GreatLakesGasTransmissionLimitedPartnershipMember2018-03-310001232384trp:TransCanadaPipeLinesLimitedMembertrp:SeniorUnsecuredNotesDueMarch2020Member2020-01-012020-12-310001232384trp:LongTermDebtExcludingJuniorSubordinatedNotesMember2020-01-012020-12-310001232384trp:LongTermDebtExcludingJuniorSubordinatedNotesMember2019-01-012019-12-310001232384trp:LongTermDebtExcludingJuniorSubordinatedNotesMember2018-01-012018-12-310001232384us-gaap:JuniorSubordinatedDebtMember2020-01-012020-12-310001232384us-gaap:JuniorSubordinatedDebtMember2019-01-012019-12-310001232384us-gaap:JuniorSubordinatedDebtMember2018-01-012018-12-310001232384us-gaap:CommercialPaperMember2020-01-012020-12-310001232384us-gaap:CommercialPaperMember2019-01-012019-12-310001232384us-gaap:CommercialPaperMember2018-01-012018-12-310001232384trp:JuniorSubordinatedDebtDue2067Memberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384trp:JuniorSubordinatedDebtDue2067Memberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDue2075Membertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDue2075Membertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDueTwoThousandSeventySixMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDueTwoThousandSeventySixMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMembertrp:JuniorSubordinatedDebtDueTwoThousandSeventySevenMember2020-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMembertrp:JuniorSubordinatedDebtDueTwoThousandSeventySevenMember2019-12-310001232384trp:CanadianJuniorSubordinatedDebtDue2077Memberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384trp:CanadianJuniorSubordinatedDebtDue2077Memberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDue2079Membertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDue2079Membertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2020-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2019-12-310001232384trp:JuniorSubordinatedDebtDue2067Membertrp:TransCanadaPipeLinesLimitedMember2017-01-012017-12-310001232384trp:JuniorSubordinatedDebtDue2067Memberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMember2017-12-310001232384trp:JuniorSubordinatedDebtDue2067Memberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMemberus-gaap:LondonInterbankOfferedRateLIBORMember2017-01-012017-12-310001232384us-gaap:JuniorSubordinatedDebtMembertrp:JuniorSubordinatedDebtDue2079Membertrp:TransCanadaPipeLinesLimitedMember2020-01-012020-12-310001232384trp:TransCanadaTrustMemberus-gaap:NotesPayableOtherPayablesMembertrp:TrustNotesSeries2019AMember2019-09-300001232384trp:TransCanadaTrustMemberus-gaap:NotesPayableOtherPayablesMembertrp:TrustNotesSeries2019AMembertrp:PeriodOneMember2019-09-300001232384trp:TransCanadaTrustMemberus-gaap:NotesPayableOtherPayablesMembertrp:TrustNotesSeries2019AMember2019-09-012019-09-300001232384us-gaap:JuniorSubordinatedDebtMembertrp:TrustNotesSeries2019AMembertrp:TransCanadaPipeLinesLimitedMember2019-09-300001232384us-gaap:JuniorSubordinatedDebtMembertrp:PeriodTwoMembertrp:TransCanadaPipeLinesLimitedMembertrp:TrustNotesSeries2019AMemberus-gaap:LondonInterbankOfferedRateLIBORMember2019-09-012019-09-300001232384trp:PeriodThreeMemberus-gaap:JuniorSubordinatedDebtMembertrp:TransCanadaPipeLinesLimitedMembertrp:TrustNotesSeries2019AMemberus-gaap:LondonInterbankOfferedRateLIBORMember2019-09-012019-09-300001232384us-gaap:JuniorSubordinatedDebtMembertrp:TrustNotesSeries2019AMembertrp:TransCanadaPipeLinesLimitedMember2019-09-012019-09-3000012323842020-03-312020-03-3100012323842020-12-312020-12-310001232384trp:KeystoneXLMemberus-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:SubsequentEventMember2021-01-040001232384trp:KeystoneXLMemberus-gaap:LineOfCreditMemberus-gaap:RevolvingCreditFacilityMemberus-gaap:SubsequentEventMember2021-01-082021-01-080001232384us-gaap:SubsequentEventMember2021-01-082021-01-080001232384trp:TCPipeLinesLPMemberus-gaap:NoncontrollingInterestMember2019-12-310001232384trp:TCPipeLinesLPMemberus-gaap:NoncontrollingInterestMember2020-12-310001232384trp:TCPipeLinesLPMemberus-gaap:NoncontrollingInterestMembersrt:MinimumMember2018-12-310001232384srt:MaximumMembertrp:TCPipeLinesLPMemberus-gaap:NoncontrollingInterestMember2018-12-310001232384trp:AttheMarketEquityIssuanceProgramMember2017-06-012017-06-300001232384trp:AttheMarketEquityIssuanceProgramMember2017-06-300001232384trp:AttheMarketEquityIssuanceProgramMember2018-06-012018-06-300001232384trp:AttheMarketEquityIssuanceProgramMember2018-06-300001232384trp:AttheMarketEquityIssuanceProgramMember2018-01-012018-12-310001232384trp:AttheMarketEquityIssuanceProgramMember2018-12-310001232384trp:AttheMarketEquityIssuanceProgramMember2019-01-012019-12-310001232384trp:AttheMarketEquityIssuanceProgramMember2020-12-310001232384trp:AttheMarketEquityIssuanceProgramMember2020-12-072020-12-070001232384us-gaap:EmployeeStockOptionMember2020-01-012020-12-310001232384us-gaap:ShareBasedCompensationAwardTrancheOneMember2020-01-012020-12-310001232384us-gaap:ShareBasedCompensationAwardTrancheTwoMember2020-01-012020-12-310001232384us-gaap:ShareBasedCompensationAwardTrancheThreeMember2020-01-012020-12-310001232384trp:SeriesOnePreferredStockMember2020-12-310001232384trp:SeriesOnePreferredStockMember2020-01-012020-12-310001232384trp:SeriesOnePreferredStockMember2019-12-310001232384trp:SeriesOnePreferredStockMember2018-12-310001232384trp:SeriesTwoPreferredStockMember2020-12-310001232384trp:SeriesTwoPreferredStockMember2019-12-310001232384trp:SeriesTwoPreferredStockMember2018-12-310001232384trp:SeriesThreePreferredStockMember2020-12-310001232384trp:SeriesThreePreferredStockMember2020-01-012020-12-310001232384trp:SeriesThreePreferredStockMember2019-12-310001232384trp:SeriesThreePreferredStockMember2018-12-310001232384trp:SeriesFourPreferredStockMember2020-12-310001232384trp:SeriesFourPreferredStockMember2019-12-310001232384trp:SeriesFourPreferredStockMember2018-12-310001232384trp:SeriesFivePreferredStockMember2020-12-310001232384trp:SeriesFivePreferredStockMember2020-01-012020-12-310001232384trp:SeriesFivePreferredStockMember2019-12-310001232384trp:SeriesFivePreferredStockMember2018-12-310001232384trp:SeriesSixPreferredStockMember2020-12-310001232384trp:SeriesSixPreferredStockMember2019-12-310001232384trp:SeriesSixPreferredStockMember2018-12-310001232384trp:Series7PreferredStockMember2020-12-310001232384trp:Series7PreferredStockMember2020-01-012020-12-310001232384trp:Series7PreferredStockMember2019-12-310001232384trp:Series7PreferredStockMember2018-12-310001232384trp:Series9PreferredStockMember2020-12-310001232384trp:Series9PreferredStockMember2020-01-012020-12-310001232384trp:Series9PreferredStockMember2019-12-310001232384trp:Series9PreferredStockMember2018-12-310001232384trp:Series11CumulativePreferredStockMember2020-12-310001232384trp:Series11CumulativePreferredStockMember2020-01-012020-12-310001232384trp:Series11CumulativePreferredStockMember2019-12-310001232384trp:Series11CumulativePreferredStockMember2018-12-310001232384trp:SeriesThirteenCumulativePreferredStockMember2020-12-310001232384trp:SeriesThirteenCumulativePreferredStockMember2020-01-012020-12-310001232384trp:SeriesThirteenCumulativePreferredStockMember2019-12-310001232384trp:SeriesThirteenCumulativePreferredStockMember2018-12-310001232384trp:SeriesFifteenCumulativePreferredStockMember2020-12-310001232384trp:SeriesFifteenCumulativePreferredStockMember2020-01-012020-12-310001232384trp:SeriesFifteenCumulativePreferredStockMember2019-12-310001232384trp:SeriesFifteenCumulativePreferredStockMember2018-12-310001232384trp:EvenNumberedSeriesofPreferredSharesMember2020-01-012020-12-310001232384trp:SeriesTwoPreferredStockMembertrp:GovernmentofCanada90DayTreasuryBillRateMember2020-12-310001232384trp:SeriesFourPreferredStockMembertrp:GovernmentofCanada90DayTreasuryBillRateMember2020-12-310001232384trp:SeriesSixPreferredStockMembertrp:GovernmentofCanada90DayTreasuryBillRateMember2020-12-310001232384trp:GovernmentofCanada90DayTreasuryBillRateMembertrp:Series8Member2020-12-310001232384trp:GovernmentofCanada90DayTreasuryBillRateMembertrp:Series10CumulativeRedeemablePreferredStockMember2020-12-310001232384trp:PreferredCumulativeSharesSeries12Membertrp:GovernmentofCanada90DayTreasuryBillRateMember2020-12-310001232384trp:GovernmentofCanada90DayTreasuryBillRateMembertrp:SeriesFourteenPreferredStockMember2020-12-310001232384trp:SeriesSixteenPreferredStockMembertrp:GovernmentofCanada90DayTreasuryBillRateMember2020-12-310001232384trp:PreferredCumulativeSharesincludingSeries1Series3Series5Series7Series9Series11Series13andSeries15Member2020-01-012020-12-310001232384trp:SeriesOnePreferredStockMembertrp:GovernmentofCanadaFiveYearBondYieldMember2020-12-310001232384trp:SeriesThreePreferredStockMembertrp:GovernmentofCanadaFiveYearBondYieldMember2020-12-310001232384trp:GovernmentofCanadaFiveYearBondYieldMembertrp:SeriesFivePreferredStockMember2020-12-310001232384trp:Series7PreferredStockMembertrp:GovernmentofCanadaFiveYearBondYieldMember2020-12-310001232384trp:Series9PreferredStockMembertrp:GovernmentofCanadaFiveYearBondYieldMember2020-12-310001232384trp:GovernmentofCanadaFiveYearBondYieldMembertrp:Series11CumulativePreferredStockMember2020-12-310001232384trp:SeriesThirteenCumulativePreferredStockMembertrp:GovernmentofCanadaFiveYearBondYieldMember2020-12-310001232384trp:SeriesFifteenCumulativePreferredStockMembertrp:GovernmentofCanadaFiveYearBondYieldMember2020-12-310001232384trp:SeriesTwoPreferredStockMember2020-01-012020-12-310001232384trp:SeriesFourPreferredStockMember2020-01-012020-12-310001232384trp:SeriesSixPreferredStockMember2020-01-012020-12-310001232384trp:SeriesThreePreferredStockMember2020-06-302020-06-300001232384trp:SeriesThreePreferredStockMember2020-07-012020-12-310001232384trp:Series7PreferredStockMember2019-04-302019-04-300001232384trp:Series9PreferredStockMember2019-10-302019-10-300001232384trp:Series11CumulativePreferredStockMember2020-11-302020-11-300001232384trp:Series11CumulativePreferredStockMember2020-12-012020-12-310001232384trp:SeriesTwoFourandSixPreferredStockMember2020-12-310001232384trp:SeriesThreePreferredStockMember2020-06-300001232384trp:SeriesFourPreferredStockMember2020-06-302020-06-300001232384trp:SeriesFourPreferredStockMember2020-06-300001232384trp:SeriesOnePreferredStockMember2019-12-312019-12-310001232384trp:SeriesTwoPreferredStockMember2019-12-312019-12-310001232384us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2020-01-012020-12-310001232384trp:AccumulatedNetGainLossfromInvestmentHedgesIncludingPortionAttributabletoNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2019-01-012019-12-310001232384trp:AccumulatedNetGainLossfromInvestmentHedgesIncludingPortionAttributabletoNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember2018-01-012018-12-310001232384trp:AccumulatedNetGainLossfromInvestmentHedgesIncludingPortionAttributabletoNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossIncludingPortionAttributableToNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2017-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2017-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2017-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2017-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2018-01-012018-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2018-01-012018-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2018-01-012018-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2018-01-012018-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2018-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2018-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2018-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2018-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2019-01-012019-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-01-012019-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-01-012019-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-01-012019-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2019-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2020-01-012020-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-01-012020-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-01-012020-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-01-012020-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMember2020-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-12-310001232384us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-12-310001232384us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedForeignCurrencyAdjustmentAttributableToNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2020-01-012020-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2019-01-012019-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMember2018-01-012018-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMembertrp:PowerandStorageSegmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMembertrp:PowerandStorageSegmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMembertrp:PowerandStorageSegmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:InterestRateContractMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384trp:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossAndNetPriorServiceAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384trp:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossAndNetPriorServiceAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384trp:AccumulatedDefinedBenefitPlansAdjustmentNetGainLossAndNetPriorServiceAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384trp:AccumulatedDefinedBenefitPlansAdjustmentNetSettlementChargesAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384trp:AccumulatedDefinedBenefitPlansAdjustmentNetSettlementChargesAttributableToParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:InterestRateContractMember2020-01-012020-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedGainLossNetCashFlowHedgeNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001232384us-gaap:AccumulatedNetInvestmentGainLossAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2018-01-012018-12-310001232384us-gaap:PensionPlansDefinedBenefitMember2020-01-012020-12-310001232384us-gaap:PensionPlansDefinedBenefitMember2018-01-012018-12-310001232384us-gaap:PensionPlansDefinedBenefitMember2019-01-012019-12-310001232384us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-12-310001232384us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-01-012019-12-310001232384us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2018-01-012018-12-310001232384us-gaap:PensionPlansDefinedBenefitMembercountry:CA2020-01-012020-12-310001232384us-gaap:PensionPlansDefinedBenefitMembercountry:CA2019-01-012019-12-310001232384us-gaap:PensionPlansDefinedBenefitMembercountry:CA2018-01-012018-12-310001232384us-gaap:PensionPlansDefinedBenefitMembercountry:CA2020-12-310001232384country:USus-gaap:PensionPlansDefinedBenefitMember2018-01-012018-12-310001232384us-gaap:PensionPlansDefinedBenefitMember2019-12-310001232384us-gaap:PensionPlansDefinedBenefitMember2018-12-310001232384us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-12-310001232384us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2018-12-310001232384us-gaap:PensionPlansDefinedBenefitMember2020-12-310001232384us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-12-310001232384us-gaap:UnfundedPlanMemberus-gaap:PensionPlansDefinedBenefitMember2020-12-310001232384us-gaap:UnfundedPlanMemberus-gaap:PensionPlansDefinedBenefitMember2019-12-310001232384us-gaap:UnfundedPlanMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-12-310001232384us-gaap:UnfundedPlanMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2019-12-310001232384us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DebtSecuritiesMember2020-12-310001232384us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DebtSecuritiesMember2019-12-310001232384us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DebtSecuritiesMembersrt:MinimumMember2020-12-310001232384us-gaap:PensionPlansDefinedBenefitMembersrt:MaximumMemberus-gaap:DebtSecuritiesMember2020-12-310001232384us-gaap:EquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2020-12-310001232384us-gaap:EquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2019-12-310001232384us-gaap:EquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2020-12-310001232384us-gaap:EquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMembersrt:MaximumMember2020-12-310001232384us-gaap:OtherThanSecuritiesInvestmentMemberus-gaap:PensionPlansDefinedBenefitMember2020-12-310001232384us-gaap:OtherThanSecuritiesInvestmentMemberus-gaap:PensionPlansDefinedBenefitMember2019-12-310001232384us-gaap:OtherThanSecuritiesInvestmentMemberus-gaap:PensionPlansDefinedBenefitMembersrt:MinimumMember2020-12-310001232384us-gaap:OtherThanSecuritiesInvestmentMemberus-gaap:PensionPlansDefinedBenefitMembersrt:MaximumMember2020-12-310001232384us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DebtSecuritiesMember2020-01-012020-12-310001232384us-gaap:PensionPlansDefinedBenefitMemberus-gaap:DebtSecuritiesMember2019-01-012019-12-310001232384us-gaap:EquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-12-310001232384us-gaap:EquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2019-01-012019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:CashAndCashEquivalentsMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:CashAndCashEquivalentsMember2019-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:CashAndCashEquivalentsMember2020-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:CashAndCashEquivalentsMember2019-12-310001232384us-gaap:CashAndCashEquivalentsMember2020-12-310001232384us-gaap:CashAndCashEquivalentsMember2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesCanadaMemberus-gaap:FairValueInputsLevel1Member2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesCanadaMemberus-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesCanadaMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesCanadaMember2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesCanadaMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesCanadaMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesCanadaMember2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesCanadaMember2019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2019-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2020-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2019-12-310001232384us-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2020-12-310001232384us-gaap:DefinedBenefitPlanEquitySecuritiesUsMember2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesInternationalMemberus-gaap:FairValueInputsLevel1Member2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesInternationalMemberus-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesInternationalMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesInternationalMember2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesInternationalMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesInternationalMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesInternationalMember2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesInternationalMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanEquitySecuritiesGlobalMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanEquitySecuritiesGlobalMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesGlobalMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesGlobalMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanEquitySecuritiesGlobalMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanEquitySecuritiesGlobalMember2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesGlobalMember2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesGlobalMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanEquitySecuritiesEmergingMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanEquitySecuritiesEmergingMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesEmergingMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanEquitySecuritiesEmergingMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanEquitySecuritiesEmergingMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanEquitySecuritiesEmergingMember2019-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesEmergingMember2020-12-310001232384trp:DefinedBenefitPlanEquitySecuritiesEmergingMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2019-12-310001232384trp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2020-12-310001232384trp:DefinedBenefitPlanCanadianFederalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2019-12-310001232384trp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2020-12-310001232384trp:DefinedBenefitPlanCanadianProvincialDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2019-12-310001232384trp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2020-12-310001232384trp:DefinedBenefitPlanCanadianMunicipalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DebtSecurityCorporateCanadaMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DebtSecurityCorporateCanadaMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DebtSecurityCorporateCanadaMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DebtSecurityCorporateCanadaMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DebtSecurityCorporateCanadaMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DebtSecurityCorporateCanadaMember2019-12-310001232384trp:DebtSecurityCorporateCanadaMember2020-12-310001232384trp:DebtSecurityCorporateCanadaMember2019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMember2019-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMember2020-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMember2019-12-310001232384us-gaap:USTreasuryAndGovernmentMember2020-12-310001232384us-gaap:USTreasuryAndGovernmentMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:USStatesMunicipalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:USStatesMunicipalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:USStatesMunicipalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:USStatesMunicipalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:USStatesMunicipalDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:USStatesMunicipalDebtSecuritiesMember2019-12-310001232384trp:USStatesMunicipalDebtSecuritiesMember2020-12-310001232384trp:USStatesMunicipalDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:DomesticCorporateDebtSecuritiesMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:DomesticCorporateDebtSecuritiesMember2019-12-310001232384us-gaap:DomesticCorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384us-gaap:DomesticCorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384us-gaap:DomesticCorporateDebtSecuritiesMember2020-12-310001232384us-gaap:DomesticCorporateDebtSecuritiesMember2019-12-310001232384trp:DebtSecurityGovernmentInternationalMemberus-gaap:FairValueInputsLevel1Member2020-12-310001232384trp:DebtSecurityGovernmentInternationalMemberus-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DebtSecurityGovernmentInternationalMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DebtSecurityGovernmentInternationalMember2019-12-310001232384trp:DebtSecurityGovernmentInternationalMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384trp:DebtSecurityGovernmentInternationalMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384trp:DebtSecurityGovernmentInternationalMember2020-12-310001232384trp:DebtSecurityGovernmentInternationalMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DebtSecurityCorporateInternationalMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:DebtSecurityCorporateInternationalMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DebtSecurityCorporateInternationalMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:DebtSecurityCorporateInternationalMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DebtSecurityCorporateInternationalMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:DebtSecurityCorporateInternationalMember2019-12-310001232384trp:DebtSecurityCorporateInternationalMember2020-12-310001232384trp:DebtSecurityCorporateInternationalMember2019-12-310001232384trp:CollateralizedMortgageBackedSecuritiesInternationalMemberus-gaap:FairValueInputsLevel1Member2020-12-310001232384trp:CollateralizedMortgageBackedSecuritiesInternationalMemberus-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:CollateralizedMortgageBackedSecuritiesInternationalMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:CollateralizedMortgageBackedSecuritiesInternationalMember2019-12-310001232384trp:CollateralizedMortgageBackedSecuritiesInternationalMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384trp:CollateralizedMortgageBackedSecuritiesInternationalMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384trp:CollateralizedMortgageBackedSecuritiesInternationalMember2020-12-310001232384trp:CollateralizedMortgageBackedSecuritiesInternationalMember2019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:RealEstateInvestmentMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:RealEstateInvestmentMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:RealEstateInvestmentMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:RealEstateInvestmentMember2019-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:RealEstateInvestmentMember2020-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:RealEstateInvestmentMember2019-12-310001232384us-gaap:RealEstateInvestmentMember2020-12-310001232384us-gaap:RealEstateInvestmentMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:InfrastructureInvestmentsMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:InfrastructureInvestmentsMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:InfrastructureInvestmentsMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:InfrastructureInvestmentsMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:InfrastructureInvestmentsMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:InfrastructureInvestmentsMember2019-12-310001232384trp:InfrastructureInvestmentsMember2020-12-310001232384trp:InfrastructureInvestmentsMember2019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:PrivateEquityFundsMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:PrivateEquityFundsMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:PrivateEquityFundsMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:PrivateEquityFundsMember2019-12-310001232384us-gaap:PrivateEquityFundsMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384us-gaap:PrivateEquityFundsMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384us-gaap:PrivateEquityFundsMember2020-12-310001232384us-gaap:PrivateEquityFundsMember2019-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanDerivativeMember2020-12-310001232384us-gaap:FairValueInputsLevel1Memberus-gaap:DefinedBenefitPlanDerivativeMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanDerivativeMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:DefinedBenefitPlanDerivativeMember2019-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanDerivativeMember2020-12-310001232384us-gaap:FairValueInputsLevel3Memberus-gaap:DefinedBenefitPlanDerivativeMember2019-12-310001232384us-gaap:DefinedBenefitPlanDerivativeMember2020-12-310001232384us-gaap:DefinedBenefitPlanDerivativeMember2019-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:FundsHeldonDepositMember2020-12-310001232384us-gaap:FairValueInputsLevel1Membertrp:FundsHeldonDepositMember2019-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:FundsHeldonDepositMember2020-12-310001232384us-gaap:FairValueInputsLevel2Membertrp:FundsHeldonDepositMember2019-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:FundsHeldonDepositMember2020-12-310001232384us-gaap:FairValueInputsLevel3Membertrp:FundsHeldonDepositMember2019-12-310001232384trp:FundsHeldonDepositMember2020-12-310001232384trp:FundsHeldonDepositMember2019-12-310001232384us-gaap:FairValueInputsLevel1Member2020-12-310001232384us-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Member2020-12-310001232384us-gaap:FairValueInputsLevel2Member2019-12-310001232384us-gaap:FairValueInputsLevel3Member2020-12-310001232384us-gaap:FairValueInputsLevel3Member2019-12-310001232384us-gaap:FairValueInputsLevel3Member2018-12-310001232384us-gaap:FairValueInputsLevel3Member2019-01-012019-12-310001232384us-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001232384us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMembercurrency:USD2020-12-310001232384us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:ForeignExchangeOptionMemberus-gaap:NetInvestmentHedgingMembercurrency:USD2019-12-310001232384us-gaap:CrossCurrencyInterestRateContractMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:CrossCurrencyInterestRateContractMemberus-gaap:NetInvestmentHedgingMembercurrency:USD2020-12-310001232384us-gaap:CrossCurrencyInterestRateContractMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:CrossCurrencyInterestRateContractMemberus-gaap:NetInvestmentHedgingMembercurrency:USD2019-12-310001232384us-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:NetInvestmentHedgingMembercurrency:USD2020-12-310001232384us-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:NetInvestmentHedgingMembercurrency:USD2019-12-310001232384us-gaap:CrossCurrencyInterestRateContractMemberus-gaap:NetInvestmentHedgingMembercurrency:USD2020-01-012020-12-310001232384us-gaap:CrossCurrencyInterestRateContractMemberus-gaap:NetInvestmentHedgingMembercurrency:USD2019-01-012019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:CarryingReportedAmountFairValueDisclosureMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:CarryingReportedAmountFairValueDisclosureMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:EstimateOfFairValueFairValueDisclosureMember2019-12-310001232384us-gaap:InterestRateSwapMember2020-01-012020-12-310001232384us-gaap:InterestRateSwapMember2019-01-012019-12-310001232384us-gaap:InterestRateSwapMember2020-12-310001232384us-gaap:InterestRateSwapMember2019-12-310001232384trp:LMCIRestrictedInvestmentsMemberus-gaap:FixedIncomeSecuritiesMember2020-12-310001232384trp:OtherRestrictedInvestmentsMemberus-gaap:FixedIncomeSecuritiesMember2020-12-310001232384trp:LMCIRestrictedInvestmentsMemberus-gaap:FixedIncomeSecuritiesMember2019-12-310001232384trp:OtherRestrictedInvestmentsMemberus-gaap:FixedIncomeSecuritiesMember2019-12-310001232384trp:LMCIRestrictedInvestmentsMember2020-12-310001232384trp:OtherRestrictedInvestmentsMember2020-12-310001232384trp:LMCIRestrictedInvestmentsMember2019-12-310001232384trp:OtherRestrictedInvestmentsMember2019-12-310001232384trp:LMCIRestrictedInvestmentsMember2020-01-012020-12-310001232384trp:OtherRestrictedInvestmentsMember2020-01-012020-12-310001232384trp:LMCIRestrictedInvestmentsMember2019-01-012019-12-310001232384trp:OtherRestrictedInvestmentsMember2019-01-012019-12-310001232384trp:LMCIRestrictedInvestmentsMember2018-01-012018-12-310001232384trp:OtherRestrictedInvestmentsMember2018-01-012018-12-310001232384us-gaap:CommodityContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:CommodityMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ForeignExchangeMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384trp:TotalTradingActivityMemberus-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:OtherCurrentAssetsMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:CashFlowHedgingMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:ForeignExchangeMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2020-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:CashFlowHedgingMember2020-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:OtherNoncurrentAssetsMembertrp:TotalTradingActivityMember2020-12-310001232384us-gaap:OtherNoncurrentAssetsMember2020-12-310001232384us-gaap:CashFlowHedgingMember2020-12-310001232384trp:TotalTradingActivityMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CashFlowHedgingMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CommodityMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CashFlowHedgingMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ForeignExchangeMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2020-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMember2020-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:FixedIncomeInterestRateMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMember2020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2020-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CashFlowHedgingMember2020-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:NetInvestmentHedgingMember2020-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMembertrp:TotalTradingActivityMember2020-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:CommodityMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:FixedIncomeInterestRateMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384trp:TotalTradingActivityMemberus-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:OtherNoncurrentLiabilitiesMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:OtherCurrentAssetsMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:CommodityMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentAssetsMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ForeignExchangeMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:OtherCurrentAssetsMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:FixedIncomeInterestRateMemberus-gaap:InterestRateContractMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:CashFlowHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:OtherCurrentAssetsMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:NetInvestmentHedgingMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384trp:TotalTradingActivityMemberus-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:OtherCurrentAssetsMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:ForeignExchangeMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentAssetsMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:InterestRateContractMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:FixedIncomeInterestRateMemberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMembertrp:TotalTradingActivityMember2019-12-310001232384us-gaap:OtherNoncurrentAssetsMember2019-12-310001232384us-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:FairValueHedgingMember2019-12-310001232384trp:TotalTradingActivityMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CommodityMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ForeignExchangeMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:FixedIncomeInterestRateMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:AccountsPayableAndAccruedLiabilitiesMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:CashFlowHedgingMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMemberus-gaap:NetInvestmentHedgingMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMembertrp:TotalTradingActivityMember2019-12-310001232384us-gaap:AccountsPayableAndAccruedLiabilitiesMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:CommodityMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ForeignExchangeMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:FixedIncomeInterestRateMemberus-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:CashFlowHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:FairValueHedgingMember2019-12-310001232384us-gaap:NetInvestmentHedgingMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384trp:TotalTradingActivityMemberus-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384us-gaap:OtherNoncurrentLiabilitiesMember2019-12-310001232384trp:LongTermDebtExcludingCurrentPortionMember2020-12-310001232384trp:LongTermDebtExcludingCurrentPortionMember2019-12-31utr:GWh0001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMemberus-gaap:LongMember2020-01-012020-12-310001232384us-gaap:CommodityContractMembersrt:NaturalGasReservesMemberus-gaap:LongMember2020-01-012020-12-31utr:MMBbls0001232384us-gaap:CommodityContractMembertrp:LiquidsMemberus-gaap:LongMember2020-01-012020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:LongMember2020-01-012020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:LongMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:ShortMemberus-gaap:EnergyRelatedDerivativeMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:ShortMembersrt:NaturalGasReservesMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:ShortMembertrp:LiquidsMember2020-01-012020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ShortMember2020-01-012020-12-310001232384us-gaap:ShortMemberus-gaap:InterestRateContractMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMember2020-01-012020-12-310001232384us-gaap:CommodityContractMembersrt:NaturalGasReservesMember2020-12-310001232384us-gaap:CommodityContractMembertrp:LiquidsMember2020-12-310001232384us-gaap:ForeignExchangeContractMember2020-12-310001232384us-gaap:InterestRateContractMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMemberus-gaap:LongMember2019-01-012019-12-310001232384us-gaap:CommodityContractMembersrt:NaturalGasReservesMemberus-gaap:LongMember2019-01-012019-12-310001232384us-gaap:CommodityContractMembertrp:LiquidsMemberus-gaap:LongMember2019-01-012019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:LongMember2019-01-012019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:LongMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:ShortMemberus-gaap:EnergyRelatedDerivativeMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:ShortMembersrt:NaturalGasReservesMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:ShortMembertrp:LiquidsMember2019-01-012019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:ShortMember2019-01-012019-12-310001232384us-gaap:ShortMemberus-gaap:InterestRateContractMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMember2019-01-012019-12-310001232384us-gaap:CommodityContractMembersrt:NaturalGasReservesMember2019-12-310001232384us-gaap:CommodityContractMembertrp:LiquidsMember2019-12-310001232384us-gaap:ForeignExchangeContractMember2019-12-310001232384us-gaap:InterestRateContractMember2019-12-310001232384us-gaap:CommodityContractMember2020-01-012020-12-310001232384us-gaap:CommodityContractMember2019-01-012019-12-310001232384us-gaap:CommodityContractMember2018-01-012018-12-310001232384us-gaap:ForeignExchangeContractMember2020-01-012020-12-310001232384us-gaap:ForeignExchangeContractMember2019-01-012019-12-310001232384us-gaap:ForeignExchangeContractMember2018-01-012018-12-310001232384us-gaap:CommodityContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2018-01-012018-12-310001232384us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2020-01-012020-12-310001232384us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2019-01-012019-12-310001232384us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateContractMember2018-01-012018-12-310001232384trp:U.S.NortheastMerchantPowerAssetsMember2019-01-012019-12-310001232384trp:U.S.NortheastMerchantPowerAssetsMember2018-01-012018-12-310001232384trp:U.S.NortheastMerchantPowerAssetsMember2020-01-012020-12-310001232384us-gaap:InterestRateContractMember2019-01-012019-12-310001232384us-gaap:InterestRateContractMember2018-01-012018-12-310001232384us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2020-01-012020-12-310001232384us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2019-01-012019-12-310001232384us-gaap:InterestRateContractMemberus-gaap:InterestExpenseMember2018-01-012018-12-310001232384us-gaap:CommodityContractMemberus-gaap:SalesMember2020-01-012020-12-310001232384us-gaap:CommodityContractMemberus-gaap:SalesMember2019-01-012019-12-310001232384us-gaap:CommodityContractMemberus-gaap:SalesMember2018-01-012018-12-310001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:EnergyRelatedDerivativeMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EnergyRelatedDerivativeMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateContractMember2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2020-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2020-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2020-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2020-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2020-12-310001232384us-gaap:FairValueMeasurementsRecurringMember2020-12-310001232384us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:EnergyRelatedDerivativeMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EnergyRelatedDerivativeMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EnergyRelatedDerivativeMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:InterestRateContractMember2019-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel1Member2019-12-310001232384us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001232384us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2019-12-310001232384us-gaap:FairValueMeasurementsRecurringMember2019-12-310001232384us-gaap:CommodityContractMemberus-gaap:EnergyRelatedDerivativeMember2018-12-310001232384us-gaap:SalesMember2020-01-012020-12-310001232384us-gaap:SalesMember2019-01-012019-12-310001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:CoastalGasLinkPipelineProjectMember2020-05-220001232384trp:CoastalGasLinkPipelineProjectMembertrp:CanadianNaturalGasPipelinesMember2020-05-220001232384trp:SeniorSecuredCreditFacilitiesDueApril2027Membertrp:CoastalGasLinkPipelineProjectMember2020-05-220001232384trp:ColumbiaMidstreamAssetsMember2019-08-012019-08-310001232384trp:ColumbiaMidstreamAssetsMember2019-08-310001232384trp:ColumbiaMidstreamAssetsMemberus-gaap:TaxYear2019Member2020-01-012020-12-3100012323842019-10-012019-10-31iso4217:USDxbrli:shares0001232384trp:ColumbiaPipelinePartnersLPMemberus-gaap:NoncontrollingInterestMember2019-10-310001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:NorthernCourierMember2019-07-310001232384trp:NorthernCourierMembertrp:LiquidsPipelinesSegmentMember2019-07-310001232384trp:NorthernCourierMembertrp:SeniorSecuredNotesDueJune2042Member2019-06-302019-06-300001232384trp:TransCanadaTurbinesMembertrp:TransCanadaTurbinesMember2020-11-130001232384trp:TransCanadaTurbinesMembertrp:TransCanadaTurbinesMember2020-11-132020-11-130001232384trp:TransCanadaTurbinesMembertrp:TransCanadaTurbinesMember2020-11-120001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:PortlandsEnergyCentreMember2020-04-292020-04-290001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:HaltonHillsNapaneeAndPortlandsEnergyCentreMember2020-04-290001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:HaltonHillsNapaneeAndPortlandsEnergyCentreMember2020-04-292020-04-290001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:HaltonHillsNapaneeAndPortlandsEnergyCentreMember2019-01-012020-12-310001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:SaltRiverProjectAgricultureImprovementandPowerDistrictMember2019-05-210001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:SaltRiverProjectAgricultureImprovementandPowerDistrictMember2019-05-012019-05-310001232384us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMembertrp:CartierWindMember2018-10-012018-10-310001232384trp:CanadianNaturalGasPipelinesMemberus-gaap:CapitalAdditionsMember2020-01-012020-12-310001232384trp:U.S.NaturalGasPipelinesMemberus-gaap:CapitalAdditionsMember2020-01-012020-12-310001232384trp:MexicoNaturalGasPipelinesMemberus-gaap:CapitalAdditionsMember2020-01-012020-12-310001232384trp:LiquidsPipelinesSegmentMemberus-gaap:CapitalAdditionsMember2020-01-012020-12-310001232384trp:PowerandStorageSegmentMemberus-gaap:CapitalAdditionsMember2020-01-012020-12-310001232384srt:ScenarioForecastMembertrp:TCPipeLinesLPMember2021-03-312021-03-310001232384trp:NorthernCourierMemberus-gaap:PerformanceGuaranteeMember2020-12-310001232384trp:NorthernCourierMemberus-gaap:PerformanceGuaranteeMember2019-12-310001232384us-gaap:PerformanceGuaranteeMembertrp:SurdeTexasTransmissionSystemMember2020-12-310001232384us-gaap:PerformanceGuaranteeMembertrp:SurdeTexasTransmissionSystemMember2019-12-310001232384us-gaap:PerformanceGuaranteeMembertrp:BrucePowerMember2020-12-310001232384us-gaap:PerformanceGuaranteeMembertrp:BrucePowerMember2019-12-310001232384us-gaap:PerformanceGuaranteeMembertrp:OtherEquityMethodInvesteeMember2020-12-310001232384us-gaap:PerformanceGuaranteeMembertrp:OtherEquityMethodInvesteeMember2019-12-310001232384us-gaap:PerformanceGuaranteeMember2020-12-310001232384us-gaap:PerformanceGuaranteeMember2019-12-310001232384us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001232384us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2019-12-310001232384us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMembertrp:BrucePowerMember2020-12-310001232384us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMembertrp:BrucePowerMember2019-12-310001232384us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMembertrp:OtherEquityMethodInvesteeMember2020-12-310001232384us-gaap:VariableInterestEntityNotPrimaryBeneficiaryMembertrp:OtherEquityMethodInvesteeMember2019-12-310001232384trp:BrucePowerMember2020-12-310001232384trp:BrucePowerMember2019-12-310001232384trp:PipelineEquityInvestmentsMember2020-12-310001232384trp:PipelineEquityInvestmentsMember2019-12-310001232384trp:DelayedDrawTermLoanDueJune2022Membertrp:ColumbiaPipelineGroupIncMemberus-gaap:LoansPayableMember2020-12-090001232384trp:DelayedDrawTermLoanDueJune2022Membertrp:ColumbiaPipelineGroupIncMemberus-gaap:SubsequentEventMemberus-gaap:LoansPayableMember2021-01-310001232384trp:KeystoneXLMember2020-12-31
U.S. Securities and Exchange Commission
Washington, D.C. 20549
Form 40-F
| | | | | |
☐ | REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 |
OR |
☒ | ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
For the fiscal year ended December 31, 2020
TC ENERGY CORPORATION
(Commission File Number 1-31690)
TRANSCANADA PIPELINES LIMITED
(Commission File Number 1-8887)
(Exact name of Registrant as specified in its charter)
Canada
(Province or other jurisdiction of incorporation or organization)
4922, 4923, 4924, 5172
(Primary Standard Industrial Classification Code Number (if applicable))
Not Applicable
(TC Energy Corporation)
(I.R.S. Employer Identification Number (if applicable))
52-2179728
(TransCanada PipeLines Limited)
(I.R.S. Employer Identification Number (if applicable))
TC Energy Tower, 450 - 1 Street S.W.
Calgary, Alberta, Canada, T2P 5H1
(403) 920-2000
(Address and telephone number of Registrant's principal executive offices)
TransCanada PipeLine USA Ltd., 700 Louisiana Street, Suite 700
Houston, Texas, 77002-2700; (832) 320-5201
(Name, address (including zip code) and telephone number (including area code)
of agent for service in the United States)
Securities registered or to be registered pursuant to Section 12(b) of the Act:
| | | | | | | | |
Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
Common Shares (including Rights under Shareholder Rights Plan) of TC Energy Corporation | TRP | New York Stock Exchange |
Securities registered or to be registered pursuant to Section 12(g) of the Act: None
Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:
Debt Securities of TransCanada PipeLines Limited
For annual reports, indicate by check mark the information filed with this Form:
| | | | | | | | | | | |
☒ | Annual information form | ☒ | Audited annual financial statements |
Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the Annual report.
At December 31, 2020, 940,064,042 common shares;
14,577,184 Cumulative Redeemable First Preferred Shares, Series 1;
7,422,816 Cumulative Redeemable First Preferred Shares, Series 2;
9,997,177 Cumulative Redeemable First Preferred Shares, Series 3;
4,002,823 Cumulative Redeemable First Preferred Shares, Series 4;
12,070,593 Cumulative Redeemable First Preferred Shares, Series 5;
1,929,407 Cumulative Redeemable First Preferred Shares Series 6;
24,000,000 Cumulative Redeemable First Preferred Shares Series 7;
18,000,000 Cumulative Redeemable First Preferred Shares Series 9;
10,000,000 Cumulative Redeemable First Preferred Shares, Series 11;
20,000,000 Cumulative Redeemable First Preferred Shares, Series 13; and
40,000,000 Cumulative Redeemable First Preferred Shares, Series 15
of TC Energy Corporation were issued and outstanding.
At December 31, 2020, 902,108,711 common shares of TransCanada PipeLines Limited,
which were all owned by TC Energy Corporation, were issued and outstanding.
Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 12b-2 of the Exchange Act.
Emerging growth company ☐
If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act.
†The term "new or revised financial accounting standard" refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒
The documents (or portions thereof) forming part of this Form 40-F are incorporated by reference into the following registration statements under the Securities Act of 1933, as amended:
| | | | | |
Form | Registration No. |
S-8 | 333-5916 |
S-8 | 333-8470 |
S-8 | 333-9130 |
S-8 | 333-151736 |
S-8 | 333-184074 |
S-8 | 333-227114 |
S-8 | 333-237979 |
F-3 | 33-13564 |
F-3 | 333-6132 |
F-4 | 333-252004 |
F-10 | 333-151781 |
F-10 | 333-161929 |
F-10 | 333-208585 |
F-10 | 333-235546 |
F-10 | 333-250988 |
F-10 | 333-252123 |
EXPLANATORY NOTE
TransCanada PipeLines Limited (“TransCanada PipeLines”) is a wholly owned subsidiary of TC Energy Corporation (“TC Energy”). As of the date of filing of this Form 40-F, TransCanada PipeLines is relying on the continuous disclosure documents filed by TC Energy pursuant to an exemption from the requirements of National Instrument 51-102 - Continuous Disclosure Obligations and as provided in the decision of the Alberta Securities Commission and the Ontario Securities Commission in Re TransCanada Corporation, 2019 ABASC 1, issued on January 3, 2019. Consistent with the exemptive relief, information contained in this Form 40-F is that provided by TC Energy except as indicated below.
AUDITED CONSOLIDATED ANNUAL FINANCIAL STATEMENTS AND
MANAGEMENT'S DISCUSSION & ANALYSIS
Except sections specifically referenced below which shall be deemed incorporated by reference herein and filed, no other portion of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements to shareholders, except as otherwise specifically incorporated by reference in the TC Energy Annual information form, shall be deemed filed with the U.S. Securities and Exchange Commission (the "Commission") as part of this report under the Exchange Act.
A. Audited Annual Financial Statements
For audited consolidated financial statements, including the auditors' report, see pages 111 through 192 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements included herein.
B. Management's Discussion and Analysis
For management's discussion and analysis, see pages 9 through 110 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements included herein under the heading "Management's discussion and analysis".
C. Management's Report on Internal Control Over Financial Reporting
For management's report on internal control over financial reporting, see "Management's Report on Internal Control over Financial Reporting" that accompanies the audited consolidated financial statements on page 111 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements included herein.
UNDERTAKING
Each Registrant undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission staff, information relating to: the securities registered pursuant to Form 40-F; the securities in relation to which the obligation to file an annual report on Form 40-F arises; or transactions in said securities.
DISCLOSURE CONTROLS AND PROCEDURES AND INTERNAL CONTROL OVER FINANCIAL REPORTING
For information on disclosure controls and procedures and management's annual report on internal control over financial reporting, see "Other information - Controls and Procedures" on page 98 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements.
AUDIT COMMITTEE FINANCIAL EXPERT
Each Registrant's Board of Directors has determined that it has at least one audit committee financial expert serving on its Audit committee. Ms. Susan C. Jones, Mr. John E. Lowe, Ms. Una Power and Mr. Thierry Vandal have been designated audit committee financial experts and are independent, as that term is defined by the New York Stock Exchange's listing standards applicable to each Registrant. The Commission has indicated that the designation of Ms. Jones, Mr. Lowe, Ms. Power and Mr. Vandal as audit committee financial experts does not make Ms. Jones, Mr. Lowe, Ms. Power or Mr. Vandal "experts" for any purpose, impose any duties, obligations or liability on Ms. Jones, Mr. Lowe, Ms. Power or Mr. Vandal that are greater than those imposed on members of the Audit committee and Board of Directors who do not carry this designation or affect the duties, obligations or liability of any other member of the Audit committee.
CODE OF ETHICS
The Registrants have adopted a code of business ethics ("Code") for their directors, officers, employees and contractors. The Registrants' Code is available on its website at www.tcenergy.com and any person can obtain the Code without charge upon request from the Corporate Secretary of TC Energy. No waivers have been granted from any provision of the Code during the 2020 fiscal year.
PRINCIPAL ACCOUNTANT FEES AND SERVICES
For information on principal accountant fees and services, see "Audit committee - Pre-approval Policies and Procedures" and "Audit committee - External Auditor Service Fees" on page 35 of the TC Energy Annual information form.
OFF-BALANCE SHEET ARRANGEMENTS
The Registrants have no off-balance sheet arrangements, as defined in this Form, other than the guarantees and commitments described in Note 28 of the Notes to the audited consolidated financial statements attached to this Form 40-F and incorporated herein by reference.
TABULAR DISCLOSURE OF CONTRACTUAL OBLIGATIONS
For information on tabular disclosure of contractual obligations, see "Financial Condition - Contractual obligations" in Management's discussion and analysis on page 84 of the TC Energy 2020 Management's discussion and analysis and audited consolidated financial statements.
IDENTIFICATION OF THE AUDIT COMMITTEE
Each Registrant has a separately-designated standing Audit committee. The members of each Audit committee as of February 17, 2021 (unless otherwise indicated) are:
| | | | | |
Chair: Members: | J.E. Lowe S. Crétier M.R. Culbert(1) S.C. Jones(2) R. Limbacher U. Power T. Vandal |
(1) Mr. Culbert was appointed as a member of the Audit Committee on May 1, 2020.
(2) Ms. Jones joined the committee as an observer effective May 1, 2020 and as a member effective February 17, 2021. Ms. Jones did not vote on any matters in 2020 considered by the committee.
FORWARD-LOOKING INFORMATION
We disclose forward-looking information to help the reader understand management's assessment of our future plans and financial outlook, and our future prospects overall.
Statements that are forward-looking are based on certain assumptions and on what we know and expect today and generally include words like anticipate, expect, believe, may, will, should, estimate or other similar words.
Forward-looking statements included or incorporated by reference in this document include information about the following, among other things:
•our financial and operational performance, including the performance of our subsidiaries
•expectations about strategies and goals for growth and expansion
•expected cash flows and future financing options available, including portfolio management
•expected dividend growth
•expected access to and cost of capital
•expected costs and schedules for planned projects, including projects under construction and in development
•expected capital expenditures, contractual obligations, commitments and contingent liabilities
•expected regulatory processes and outcomes
•expected outcomes with respect to legal proceedings, including arbitration and insurance claims
•the expected impairment charge for Keystone XL in first quarter 2021
•the expected impact of future tax and accounting changes
•expected industry, market and economic conditions
•the expected impact of COVID-19.
Forward-looking statements do not guarantee future performance. Actual events and results could be significantly different because of assumptions, risks or uncertainties related to our business or events that happen after the date of this document.
Our forward-looking information is based on the following key assumptions, and subject to the following risks and uncertainties:
Assumptions
•regulatory decisions and outcomes
•planned and unplanned outages and the use of our pipeline, power and storage assets
•integrity and reliability of our assets
•anticipated construction costs, schedules and completion dates
•access to capital markets, including portfolio management
•expected industry, market and economic conditions
•inflation rates and commodity prices
•interest, tax and foreign exchange rates
•nature and scope of hedging
•expected impact of COVID-19.
Risks and uncertainties
•our ability to successfully implement our strategic priorities and whether they will yield the expected benefits
•our ability to implement a capital allocation strategy aligned with maximizing shareholder value
•the operating performance of our pipeline, power and storage assets
•amount of capacity sold and rates achieved in our pipeline businesses
•the amount of capacity payments and revenues from our power generation assets due to plant availability
•production levels within supply basins
•construction and completion of capital projects
•cost and availability of labour, equipment and materials
•the availability and market prices of commodities
•access to capital markets on competitive terms
•interest, tax and foreign exchange rates
•performance and credit risk of our counterparties
•regulatory decisions and outcomes of legal proceedings, including arbitration and insurance claims
•our ability to effectively anticipate and assess changes to government policies and regulations, including those related to the environment and COVID-19
•our ability to realize the value of tangible assets and contractual recoveries from impaired assets, including Keystone XL
•competition in the businesses in which we operate
•unexpected or unusual weather
•acts of civil disobedience
•cyber security and technological developments
•economic conditions in North America as well as globally
•global health crises, such as pandemics and epidemics, including COVID-19 and the unexpected impacts related thereto.
You can read more about these factors and others in reports we have filed with Canadian securities regulators and the Commission.
As actual results could vary significantly from the forward-looking information, you should not put undue reliance on forward-looking information and should not use future-oriented information or financial outlooks for anything other than their intended purpose. We do not update our forward-looking statements due to new information or future events, unless we are required to by law.
DOCUMENTS FILED AS PART OF THIS REPORT
| | | | | |
EXHIBITS |
| |
13.1 | |
| |
13.2 | |
| |
13.3 | |
| |
23.1 | |
| |
31.1 | |
| |
31.2 | |
| |
32.1 | |
| |
32.2 | |
| |
101.SCH | Inline XBRL Taxonomy Extension Schema Document. |
| |
101.CAL | Inline XBRL Taxonomy Extension Calculation Linkbase Document. |
| |
101.DEF | Inline XBRL Taxonomy Definition Linkbase Document. |
| |
101.LAB | Inline XBRL Taxonomy Extension Label Linkbase Document. |
| |
101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase Document. |
| |
104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101). |
SIGNATURES
Pursuant to the requirements of the Exchange Act, each Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf by the undersigned, thereto duly authorized, in the City of Calgary, Province of Alberta, Canada.
| | | | | | | | |
| TC ENERGY CORPORATION |
| TRANSCANADA PIPELINES LIMITED |
| (Registrants) |
| | |
| | |
| By: | /s/ DONALD R. MARCHAND |
| | DONALD R. MARCHAND Executive Vice-President, Strategy & Corporate Development and Chief Financial Officer |
| | |
| | Date: February 18, 2021 |