3.10.0.1 html 265 419 1 false 75 0 false 7 false false R1.htm 0001001 - Document - Document And Entity Information Sheet http://kindermorgan.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 1001002 - Statement - CONSOLIDATED STATEMENTS OF INCOME (In millions of Canadian dollars, except per share amounts) Sheet http://kindermorgan.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEInmillionsofCanadiandollarsexceptpershareamounts CONSOLIDATED STATEMENTS OF INCOME (In millions of Canadian dollars, except per share amounts) Statements 2 false false R3.htm 1002003 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (In millions of Canadian dollars) (Unaudited) Sheet http://kindermorgan.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEInmillionsofCanadiandollarsUnaudited CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (In millions of Canadian dollars) (Unaudited) Statements 3 false false R4.htm 1003004 - Statement - CONSOLIDATED BALANCE SHEETS (In millions of Canadian dollars, except share amounts) Sheet http://kindermorgan.com/role/CONSOLIDATEDBALANCESHEETSInmillionsofCanadiandollarsexceptshareamounts CONSOLIDATED BALANCE SHEETS (In millions of Canadian dollars, except share amounts) Statements 4 false false R5.htm 1004005 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://kindermorgan.com/role/CONSOLIDATEDBALANCESHEETSParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 5 false false R6.htm 1005006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://kindermorgan.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 6 false false R7.htm 1006007 - Statement - CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY Sheet http://kindermorgan.com/role/CONSOLIDATEDSTATEMENTOFSTOCKHOLDERSEQUITY CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY Statements 7 false false R8.htm 2101101 - Disclosure - General (Notes) Notes http://kindermorgan.com/role/GeneralNotes General (Notes) Notes 8 false false R9.htm 2103102 - Disclosure - Summary of Significant Accounting Policies (Notes) Notes http://kindermorgan.com/role/SummaryofSignificantAccountingPoliciesNotes Summary of Significant Accounting Policies (Notes) Notes 9 false false R10.htm 2106103 - Disclosure - Trans Mountain Transaction (Notes) Notes http://kindermorgan.com/role/TransMountainTransactionNotes Trans Mountain Transaction (Notes) Notes 10 false false R11.htm 2109104 - Disclosure - Income Taxes (Notes) Notes http://kindermorgan.com/role/IncomeTaxesNotes Income Taxes (Notes) Notes 11 false false R12.htm 2115105 - Disclosure - Other Current Assets (Notes) Notes http://kindermorgan.com/role/OtherCurrentAssetsNotes Other Current Assets (Notes) Notes 12 false false R13.htm 2118106 - Disclosure - Property, Plant and Equipment (Notes) Notes http://kindermorgan.com/role/PropertyPlantandEquipmentNotes Property, Plant and Equipment (Notes) Notes 13 false false R14.htm 2121107 - Disclosure - Deferred Charges and Other Assets (Notes) Notes http://kindermorgan.com/role/DeferredChargesandOtherAssetsNotes Deferred Charges and Other Assets (Notes) Notes 14 false false R15.htm 2124108 - Disclosure - Accounts Payable (Notes) Notes http://kindermorgan.com/role/AccountsPayableNotes Accounts Payable (Notes) Notes 15 false false R16.htm 2127109 - Disclosure - Other Current Liabilities (Notes) Notes http://kindermorgan.com/role/OtherCurrentLiabilitiesNotes Other Current Liabilities (Notes) Notes 16 false false R17.htm 2130110 - Disclosure - Debt (Notes) Notes http://kindermorgan.com/role/DebtNotes Debt (Notes) Notes 17 false false R18.htm 2132111 - Disclosure - Share-based Compensation and Benefit Plans (Notes) Notes http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansNotes Share-based Compensation and Benefit Plans (Notes) Notes 18 false false R19.htm 2138112 - Disclosure - Other Deferred Credits (Notes) Notes http://kindermorgan.com/role/OtherDeferredCreditsNotes Other Deferred Credits (Notes) Notes 19 false false R20.htm 2141113 - Disclosure - Equity (Notes) Notes http://kindermorgan.com/role/EquityNotes Equity (Notes) Notes 20 false false R21.htm 2147114 - Disclosure - Transactions with Related Parties (Notes) Notes http://kindermorgan.com/role/TransactionswithRelatedPartiesNotes Transactions with Related Parties (Notes) Notes 21 false false R22.htm 2151115 - Disclosure - Interest Expense, net (Notes) Notes http://kindermorgan.com/role/InterestExpensenetNotes Interest Expense, net (Notes) Notes 22 false false R23.htm 2154116 - Disclosure - Changes in Operating Assets and Liabilities (Notes) Notes http://kindermorgan.com/role/ChangesinOperatingAssetsandLiabilitiesNotes Changes in Operating Assets and Liabilities (Notes) Notes 23 false false R24.htm 2157117 - Disclosure - Risk Management and Financial Instruments (Notes) Notes http://kindermorgan.com/role/RiskManagementandFinancialInstrumentsNotes Risk Management and Financial Instruments (Notes) Notes 24 false false R25.htm 2159118 - Disclosure - Revenue Recognition (Notes) Notes http://kindermorgan.com/role/RevenueRecognitionNotes Revenue Recognition (Notes) Notes 25 false false R26.htm 2164119 - Disclosure - Reportable Segments (Notes) Notes http://kindermorgan.com/role/ReportableSegmentsNotes Reportable Segments (Notes) Notes 26 false false R27.htm 2171120 - Disclosure - Litigation, Commitments and Contingencies (Notes) Notes http://kindermorgan.com/role/LitigationCommitmentsandContingenciesNotes Litigation, Commitments and Contingencies (Notes) Notes 27 false false R28.htm 2177121 - Disclosure - Recent Accounting Pronoucements (Notes) Notes http://kindermorgan.com/role/RecentAccountingPronoucementsNotes Recent Accounting Pronoucements (Notes) Notes 28 false false R29.htm 2204201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://kindermorgan.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://kindermorgan.com/role/SummaryofSignificantAccountingPoliciesNotes 29 false false R30.htm 2307301 - Disclosure - Trans Mountain Transaction (Tables) Sheet http://kindermorgan.com/role/TransMountainTransactionTables Trans Mountain Transaction (Tables) Tables http://kindermorgan.com/role/TransMountainTransactionNotes 30 false false R31.htm 2310302 - Disclosure - Income Taxes (Tables) Sheet http://kindermorgan.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://kindermorgan.com/role/IncomeTaxesNotes 31 false false R32.htm 2316303 - Disclosure - Other Current Assets (Tables) Sheet http://kindermorgan.com/role/OtherCurrentAssetsTables Other Current Assets (Tables) Tables http://kindermorgan.com/role/OtherCurrentAssetsNotes 32 false false R33.htm 2319304 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://kindermorgan.com/role/PropertyPlantandEquipmentTables Property, Plant and Equipment (Tables) Tables http://kindermorgan.com/role/PropertyPlantandEquipmentNotes 33 false false R34.htm 2322305 - Disclosure - Deferred Charges and Other Assets (Tables) Sheet http://kindermorgan.com/role/DeferredChargesandOtherAssetsTables Deferred Charges and Other Assets (Tables) Tables http://kindermorgan.com/role/DeferredChargesandOtherAssetsNotes 34 false false R35.htm 2325306 - Disclosure - Accounts Payable (Tables) Sheet http://kindermorgan.com/role/AccountsPayableTables Accounts Payable (Tables) Tables http://kindermorgan.com/role/AccountsPayableNotes 35 false false R36.htm 2328307 - Disclosure - Other Current Liabilities (Tables) Sheet http://kindermorgan.com/role/OtherCurrentLiabilitiesTables Other Current Liabilities (Tables) Tables http://kindermorgan.com/role/OtherCurrentLiabilitiesNotes 36 false false R37.htm 2333308 - Disclosure - Share-based Compensation and Benefit Plans (Tables) Sheet http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansTables Share-based Compensation and Benefit Plans (Tables) Tables http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansNotes 37 false false R38.htm 2339309 - Disclosure - Other Deferred Credits (Tables) Sheet http://kindermorgan.com/role/OtherDeferredCreditsTables Other Deferred Credits (Tables) Tables http://kindermorgan.com/role/OtherDeferredCreditsNotes 38 false false R39.htm 2342310 - Disclosure - Equity (Tables) Sheet http://kindermorgan.com/role/EquityTables Equity (Tables) Tables http://kindermorgan.com/role/EquityNotes 39 false false R40.htm 2348311 - Disclosure - Transactions with Related Parties (Tables) Sheet http://kindermorgan.com/role/TransactionswithRelatedPartiesTables Transactions with Related Parties (Tables) Tables http://kindermorgan.com/role/TransactionswithRelatedPartiesNotes 40 false false R41.htm 2352312 - Disclosure - Interest Expense, net (Tables) Sheet http://kindermorgan.com/role/InterestExpensenetTables Interest Expense, net (Tables) Tables http://kindermorgan.com/role/InterestExpensenetNotes 41 false false R42.htm 2355313 - Disclosure - Changes in Operating Assets and Liabilities (Tables) Sheet http://kindermorgan.com/role/ChangesinOperatingAssetsandLiabilitiesTables Changes in Operating Assets and Liabilities (Tables) Tables http://kindermorgan.com/role/ChangesinOperatingAssetsandLiabilitiesNotes 42 false false R43.htm 2360314 - Disclosure - Revenue Recognition (Tables) Sheet http://kindermorgan.com/role/RevenueRecognitionTables Revenue Recognition (Tables) Tables http://kindermorgan.com/role/RevenueRecognitionNotes 43 false false R44.htm 2365315 - Disclosure - Reportable Segments (Tables) Sheet http://kindermorgan.com/role/ReportableSegmentsTables Reportable Segments (Tables) Tables http://kindermorgan.com/role/ReportableSegmentsNotes 44 false false R45.htm 2372316 - Disclosure - Litigation, Commitments and Contingencies (Tables) Sheet http://kindermorgan.com/role/LitigationCommitmentsandContingenciesTables Litigation, Commitments and Contingencies (Tables) Tables http://kindermorgan.com/role/LitigationCommitmentsandContingenciesNotes 45 false false R46.htm 2402401 - Disclosure - General (Details) Sheet http://kindermorgan.com/role/GeneralDetails General (Details) Details http://kindermorgan.com/role/GeneralNotes 46 false false R47.htm 2405402 - Disclosure - Summary of Significant Accounting Policies (Details) Sheet http://kindermorgan.com/role/SummaryofSignificantAccountingPoliciesDetails Summary of Significant Accounting Policies (Details) Details http://kindermorgan.com/role/SummaryofSignificantAccountingPoliciesPolicies 47 false false R48.htm 2408403 - Disclosure - Trans Mountain Transaction (Details) Sheet http://kindermorgan.com/role/TransMountainTransactionDetails Trans Mountain Transaction (Details) Details http://kindermorgan.com/role/TransMountainTransactionTables 48 false false R49.htm 2411404 - Disclosure - Income Taxes Components (Details) Sheet http://kindermorgan.com/role/IncomeTaxesComponentsDetails Income Taxes Components (Details) Details 49 false false R50.htm 2412405 - Disclosure - Income Taxes Effective Income Tax Rate (Details) Sheet http://kindermorgan.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails Income Taxes Effective Income Tax Rate (Details) Details 50 false false R51.htm 2413406 - Disclosure - Income Taxes Deferred Tax Assets and Liabilities (Details) Sheet http://kindermorgan.com/role/IncomeTaxesDeferredTaxAssetsandLiabilitiesDetails Income Taxes Deferred Tax Assets and Liabilities (Details) Details 51 false false R52.htm 2414407 - Disclosure - Income Taxes (Narrative) (Details) Sheet http://kindermorgan.com/role/IncomeTaxesNarrativeDetails Income Taxes (Narrative) (Details) Details http://kindermorgan.com/role/IncomeTaxesTables 52 false false R53.htm 2417408 - Disclosure - Other Current Assets (Details) Sheet http://kindermorgan.com/role/OtherCurrentAssetsDetails Other Current Assets (Details) Details http://kindermorgan.com/role/OtherCurrentAssetsTables 53 false false R54.htm 2420409 - Disclosure - Property, Plant and Equipment (Details) Sheet http://kindermorgan.com/role/PropertyPlantandEquipmentDetails Property, Plant and Equipment (Details) Details http://kindermorgan.com/role/PropertyPlantandEquipmentTables 54 false false R55.htm 2423410 - Disclosure - Deferred Charges and Other Assets (Details) Sheet http://kindermorgan.com/role/DeferredChargesandOtherAssetsDetails Deferred Charges and Other Assets (Details) Details http://kindermorgan.com/role/DeferredChargesandOtherAssetsTables 55 false false R56.htm 2426411 - Disclosure - Accounts Payable (Details) Sheet http://kindermorgan.com/role/AccountsPayableDetails Accounts Payable (Details) Details http://kindermorgan.com/role/AccountsPayableTables 56 false false R57.htm 2429412 - Disclosure - Other Current Liabilities (Details) Sheet http://kindermorgan.com/role/OtherCurrentLiabilitiesDetails Other Current Liabilities (Details) Details http://kindermorgan.com/role/OtherCurrentLiabilitiesTables 57 false false R58.htm 2431413 - Disclosure - Debt (Details) Sheet http://kindermorgan.com/role/DebtDetails Debt (Details) Details http://kindermorgan.com/role/DebtNotes 58 false false R59.htm 2434414 - Disclosure - Share-based Compensation and Benefit Plans (Narrative) (Details) Sheet http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansNarrativeDetails Share-based Compensation and Benefit Plans (Narrative) (Details) Details http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansTables 59 false false R60.htm 2435415 - Disclosure - Share-based Compensation and Benefit Plans (Summary of Activity and Related Balances) (Details) Sheet http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansSummaryofActivityandRelatedBalancesDetails Share-based Compensation and Benefit Plans (Summary of Activity and Related Balances) (Details) Details http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansTables 60 false false R61.htm 2436416 - Disclosure - Share-based Compensation and Benefit Plans (Schedule of Future Vesting) (Details) Sheet http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansScheduleofFutureVestingDetails Share-based Compensation and Benefit Plans (Schedule of Future Vesting) (Details) Details http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansTables 61 false false R62.htm 2437417 - Disclosure - Share-based Compensation and Benefit Plans (Benefit Plans) (Details) Sheet http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansBenefitPlansDetails Share-based Compensation and Benefit Plans (Benefit Plans) (Details) Details http://kindermorgan.com/role/SharebasedCompensationandBenefitPlansTables 62 false false R63.htm 2440418 - Disclosure - Other Deferred Credits (Details) Sheet http://kindermorgan.com/role/OtherDeferredCreditsDetails Other Deferred Credits (Details) Details http://kindermorgan.com/role/OtherDeferredCreditsTables 63 false false R64.htm 2443419 - Disclosure - Equity (Additional Details) (Details) Sheet http://kindermorgan.com/role/EquityAdditionalDetailsDetails Equity (Additional Details) (Details) Details http://kindermorgan.com/role/EquityTables 64 false false R65.htm 2444420 - Disclosure - Equity Preferred Stock (Details) Sheet http://kindermorgan.com/role/EquityPreferredStockDetails Equity Preferred Stock (Details) Details 65 false false R66.htm 2445421 - Disclosure - Equity Common Stock (Details) Sheet http://kindermorgan.com/role/EquityCommonStockDetails Equity Common Stock (Details) Details 66 false false R67.htm 2446422 - Disclosure - Equity Earnings Per Share (Details) Sheet http://kindermorgan.com/role/EquityEarningsPerShareDetails Equity Earnings Per Share (Details) Details 67 false false R68.htm 2449423 - Disclosure - Transactions with Related Parties (Affiliated Activities) (Details) Sheet http://kindermorgan.com/role/TransactionswithRelatedPartiesAffiliatedActivitiesDetails Transactions with Related Parties (Affiliated Activities) (Details) Details http://kindermorgan.com/role/TransactionswithRelatedPartiesTables 68 false false R69.htm 2450424 - Disclosure - Transactions with Related Parties (Other Affiliate Balances) (Details) Sheet http://kindermorgan.com/role/TransactionswithRelatedPartiesOtherAffiliateBalancesDetails Transactions with Related Parties (Other Affiliate Balances) (Details) Details http://kindermorgan.com/role/TransactionswithRelatedPartiesTables 69 false false R70.htm 2453425 - Disclosure - Interest Expense, net (Details) Sheet http://kindermorgan.com/role/InterestExpensenetDetails Interest Expense, net (Details) Details http://kindermorgan.com/role/InterestExpensenetTables 70 false false R71.htm 2456426 - Disclosure - Changes in Operating Assets and Liabilities (Details) Sheet http://kindermorgan.com/role/ChangesinOperatingAssetsandLiabilitiesDetails Changes in Operating Assets and Liabilities (Details) Details http://kindermorgan.com/role/ChangesinOperatingAssetsandLiabilitiesTables 71 false false R72.htm 2458427 - Disclosure - Risk Management and Financial Instruments (Details) Sheet http://kindermorgan.com/role/RiskManagementandFinancialInstrumentsDetails Risk Management and Financial Instruments (Details) Details http://kindermorgan.com/role/RiskManagementandFinancialInstrumentsNotes 72 false false R73.htm 2461428 - Disclosure - Revenue Recognition Disaggregation of Revenue (Details) Sheet http://kindermorgan.com/role/RevenueRecognitionDisaggregationofRevenueDetails Revenue Recognition Disaggregation of Revenue (Details) Details 73 false false R74.htm 2462429 - Disclosure - Revenue Recognition Contract Balances (Details) Sheet http://kindermorgan.com/role/RevenueRecognitionContractBalancesDetails Revenue Recognition Contract Balances (Details) Details 74 false false R75.htm 2463430 - Disclosure - Revenue Recognition Revenue Allocated to Remaining Performance Obligations (Details) Sheet http://kindermorgan.com/role/RevenueRecognitionRevenueAllocatedtoRemainingPerformanceObligationsDetails Revenue Recognition Revenue Allocated to Remaining Performance Obligations (Details) Details 75 false false R76.htm 2466431 - Disclosure - Reportable Segments Reportable Segments General (Details) Sheet http://kindermorgan.com/role/ReportableSegmentsReportableSegmentsGeneralDetails Reportable Segments Reportable Segments General (Details) Details 76 false false R77.htm 2467432 - Disclosure - Reportable Segments by Segment (Details) Sheet http://kindermorgan.com/role/ReportableSegmentsbySegmentDetails Reportable Segments by Segment (Details) Details 77 false false R78.htm 2468433 - Disclosure - Reportable Segments EBDA (Details) Sheet http://kindermorgan.com/role/ReportableSegmentsEBDADetails Reportable Segments EBDA (Details) Details 78 false false R79.htm 2469434 - Disclosure - Reportable Segments Capital Expenditures (Details) Sheet http://kindermorgan.com/role/ReportableSegmentsCapitalExpendituresDetails Reportable Segments Capital Expenditures (Details) Details 79 false false R80.htm 2470435 - Disclosure - Reportable Segments Assets (Details) Sheet http://kindermorgan.com/role/ReportableSegmentsAssetsDetails Reportable Segments Assets (Details) Details 80 false false R81.htm 2473436 - Disclosure - Litigation, Commitments and Contingencies (General) (Details) Sheet http://kindermorgan.com/role/LitigationCommitmentsandContingenciesGeneralDetails Litigation, Commitments and Contingencies (General) (Details) Details http://kindermorgan.com/role/LitigationCommitmentsandContingenciesTables 81 false false R82.htm 2474437 - Disclosure - Litigation, Commitments and Contingencies (Commitments) (Details) Sheet http://kindermorgan.com/role/LitigationCommitmentsandContingenciesCommitmentsDetails Litigation, Commitments and Contingencies (Commitments) (Details) Details http://kindermorgan.com/role/LitigationCommitmentsandContingenciesTables 82 false false R83.htm 2475438 - Disclosure - Litigation, Commitments and Contingencies (Leases and Right-of-Way Obligations) (Details) Sheet http://kindermorgan.com/role/LitigationCommitmentsandContingenciesLeasesandRightofWayObligationsDetails Litigation, Commitments and Contingencies (Leases and Right-of-Way Obligations) (Details) Details http://kindermorgan.com/role/LitigationCommitmentsandContingenciesTables 83 false false R84.htm 2476439 - Disclosure - Litigation, Commitments and Contingencies (Contingencies) (Details) Sheet http://kindermorgan.com/role/LitigationCommitmentsandContingenciesContingenciesDetails Litigation, Commitments and Contingencies (Contingencies) (Details) Details http://kindermorgan.com/role/LitigationCommitmentsandContingenciesTables 84 false false R85.htm 2478440 - Disclosure - Recent Accounting Pronouncements (Details) Sheet http://kindermorgan.com/role/RecentAccountingPronouncementsDetails Recent Accounting Pronouncements (Details) Details 85 false false All Reports Book All Reports kml-20181231.htm kml-20181231.xsd kml-20181231_cal.xml kml-20181231_def.xml kml-20181231_lab.xml kml-20181231_pre.xml kml-2018x10kxexh211.htm kml-2018x10kxexh311.htm kml-2018x10kxexh3111.htm kml-2018x10kxexh312.htm kml-2018x10kxexh321.htm kml-2018x10kxexh322.htm kml-2018x10kxexh34.htm http://xbrl.sec.gov/dei/2018-01-31 http://fasb.org/us-gaap/2018-01-31 http://fasb.org/srt/2018-01-31 true true