3.5.0.2 html 412 299 1 true 111 0 false 7 false false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.spectraenergy.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 1002000 - Statement - Condensed Consolidated Statement of Operations Statement Sheet http://www.spectraenergy.com/role/CondensedConsolidatedStatementOfOperationsStatement Condensed Consolidated Statement of Operations Statement Statements 2 false false R3.htm 1003000 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) Sheet http://www.spectraenergy.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited Condensed Consolidated Statements of Comprehensive Income (Unaudited) Statements 3 false false R4.htm 1003001 - Statement - Condensed Consolidated Statement of Comprehensive Income (Parenthetical) Sheet http://www.spectraenergy.com/role/CondensedConsolidatedStatementOfComprehensiveIncomeParenthetical Condensed Consolidated Statement of Comprehensive Income (Parenthetical) Statements 4 false false R5.htm 1004000 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://www.spectraenergy.com/role/CondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (Unaudited) Statements 5 false false R6.htm 1004501 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://www.spectraenergy.com/role/CondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 6 false false R7.htm 1005000 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.spectraenergy.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 7 false false R8.htm 1006000 - Statement - Condensed Consolidated Statements of Equity (Unaudited) Sheet http://www.spectraenergy.com/role/CondensedConsolidatedStatementsOfEquityUnaudited Condensed Consolidated Statements of Equity (Unaudited) Statements 8 false false R9.htm 2101100 - Disclosure - General Sheet http://www.spectraenergy.com/role/General General Notes 9 false false R10.htm 2105100 - Disclosure - Dispositions Sheet http://www.spectraenergy.com/role/Dispositions Dispositions Notes 10 false false R11.htm 2107100 - Disclosure - Business Segments Sheet http://www.spectraenergy.com/role/BusinessSegments Business Segments Notes 11 false false R12.htm 2109100 - Disclosure - Regulatory Matters Sheet http://www.spectraenergy.com/role/RegulatoryMatters Regulatory Matters Notes 12 false false R13.htm 2110100 - Disclosure - Income Taxes Sheet http://www.spectraenergy.com/role/IncomeTaxes Income Taxes Notes 13 false false R14.htm 2114100 - Disclosure - Earnings per Common Share Sheet http://www.spectraenergy.com/role/EarningsPerCommonShare Earnings per Common Share Notes 14 false false R15.htm 2115100 - Disclosure - Accumulated Other Comprehensive Income Sheet http://www.spectraenergy.com/role/AccumulatedOtherComprehensiveIncome Accumulated Other Comprehensive Income Notes 15 false false R16.htm 2121100 - Disclosure - Inventory Sheet http://www.spectraenergy.com/role/Inventory Inventory Notes 16 false false R17.htm 2129100 - Disclosure - Investments in and Loans to Unconsolidated Affiliates Sheet http://www.spectraenergy.com/role/InvestmentsInAndLoansToUnconsolidatedAffiliates Investments in and Loans to Unconsolidated Affiliates Notes 17 false false R18.htm 2130100 - Disclosure - Variable Interest Entities Sheet http://www.spectraenergy.com/role/VariableInterestEntities Variable Interest Entities Notes 18 false false R19.htm 2131100 - Disclosure - Intangible Asset Sheet http://www.spectraenergy.com/role/IntangibleAsset Intangible Asset Notes 19 false false R20.htm 2132100 - Disclosure - Goodwill Sheet http://www.spectraenergy.com/role/Goodwill Goodwill Notes 20 false false R21.htm 2133100 - Disclosure - Marketable Securities and Restricted Funds Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFunds Marketable Securities and Restricted Funds Notes 21 false false R22.htm 2140100 - Disclosure - Debt and Credit Facilities Sheet http://www.spectraenergy.com/role/DebtAndCreditFacilities Debt and Credit Facilities Notes 22 false false R23.htm 2141100 - Disclosure - Preferred Stock of Subsidiaries Sheet http://www.spectraenergy.com/role/PreferredStockOfSubsidiaries Preferred Stock of Subsidiaries Notes 23 false false R24.htm 2143100 - Disclosure - Fair Value Measurements Sheet http://www.spectraenergy.com/role/FairValueMeasurements Fair Value Measurements Notes 24 false false R25.htm 2144100 - Disclosure - Risk Management and Hedging Activities Sheet http://www.spectraenergy.com/role/RiskManagementAndHedgingActivities Risk Management and Hedging Activities Notes 25 false false R26.htm 2145100 - Disclosure - Commitments and Contingencies Sheet http://www.spectraenergy.com/role/CommitmentsAndContingencies Commitments and Contingencies Notes 26 false false R27.htm 2146100 - Disclosure - Guarantees and Indemnifications Sheet http://www.spectraenergy.com/role/GuaranteesAndIndemnifications Guarantees and Indemnifications Notes 27 false false R28.htm 2147100 - Disclosure - Issuances of Common Stock Sheet http://www.spectraenergy.com/role/IssuancesOfCommonStock Issuances of Common Stock Notes 28 false false R29.htm 2149100 - Disclosure - Issuances of SEP Units Sheet http://www.spectraenergy.com/role/IssuancesOfSepUnits Issuances of SEP Units Notes 29 false false R30.htm 2150100 - Disclosure - Employee Benefit Plans Sheet http://www.spectraenergy.com/role/EmployeeBenefitPlans Employee Benefit Plans Notes 30 false false R31.htm 2152100 - Disclosure - Condensed Consolidating Financial Information Sheet http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformation Condensed Consolidating Financial Information Notes 31 false false R32.htm 2153100 - Disclosure - New Accounting Pronouncements Sheet http://www.spectraenergy.com/role/NewAccountingPronouncements New Accounting Pronouncements Notes 32 false false R33.htm 2155100 - Disclosure - Subsequent Events Sheet http://www.spectraenergy.com/role/SubsequentEvents Subsequent Events Notes 33 false false R34.htm 2254201 - Disclosure - Significant Accounting Policies (Policies) Sheet http://www.spectraenergy.com/role/SignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://www.spectraenergy.com/role/NewAccountingPronouncements 34 false false R35.htm 2307301 - Disclosure - Business Segments (Tables) Sheet http://www.spectraenergy.com/role/BusinessSegmentsTables Business Segments (Tables) Tables http://www.spectraenergy.com/role/BusinessSegments 35 false false R36.htm 2314301 - Disclosure - Earnings per Common Share (Tables) Sheet http://www.spectraenergy.com/role/EarningsPerCommonShareTables Earnings per Common Share (Tables) Tables http://www.spectraenergy.com/role/EarningsPerCommonShare 36 false false R37.htm 2315301 - Disclosure - Accumulated Other Comprehensive Income (Tables) Sheet http://www.spectraenergy.com/role/AccumulatedOtherComprehensiveIncomeTables Accumulated Other Comprehensive Income (Tables) Tables http://www.spectraenergy.com/role/AccumulatedOtherComprehensiveIncome 37 false false R38.htm 2321301 - Disclosure - Inventory (Tables) Sheet http://www.spectraenergy.com/role/InventoryTables Inventory (Tables) Tables http://www.spectraenergy.com/role/Inventory 38 false false R39.htm 2329301 - Disclosure - Investments in and Loans to Unconsolidated Affiliates (Tables) Sheet http://www.spectraenergy.com/role/InvestmentsInAndLoansToUnconsolidatedAffiliatesTables Investments in and Loans to Unconsolidated Affiliates (Tables) Tables http://www.spectraenergy.com/role/InvestmentsInAndLoansToUnconsolidatedAffiliates 39 false false R40.htm 2330301 - Disclosure - Variable Interest Entities (Tables) Sheet http://www.spectraenergy.com/role/VariableInterestEntitiesTables Variable Interest Entities (Tables) Tables http://www.spectraenergy.com/role/VariableInterestEntities 40 false false R41.htm 2333301 - Disclosure - Marketable Securities and Restricted Funds (Tables) Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFundsTables Marketable Securities and Restricted Funds (Tables) Tables http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFunds 41 false false R42.htm 2340301 - Disclosure - Debt and Credit Facilities (Tables) Sheet http://www.spectraenergy.com/role/DebtAndCreditFacilitiesTables Debt and Credit Facilities (Tables) Tables http://www.spectraenergy.com/role/DebtAndCreditFacilities 42 false false R43.htm 2343301 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.spectraenergy.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.spectraenergy.com/role/FairValueMeasurements 43 false false R44.htm 2344301 - Disclosure - Risk Management and Hedging Activities (Tables) Sheet http://www.spectraenergy.com/role/RiskManagementAndHedgingActivitiesTables Risk Management and Hedging Activities (Tables) Tables http://www.spectraenergy.com/role/RiskManagementAndHedgingActivities 44 false false R45.htm 2349301 - Disclosure - Issuances of SEP Units (Tables) Sheet http://www.spectraenergy.com/role/IssuancesOfSepUnitsTables Issuances of SEP Units (Tables) Tables http://www.spectraenergy.com/role/IssuancesOfSepUnits 45 false false R46.htm 2350301 - Disclosure - Employee Benefit Plans (Tables) Sheet http://www.spectraenergy.com/role/EmployeeBenefitPlansTables Employee Benefit Plans (Tables) Tables http://www.spectraenergy.com/role/EmployeeBenefitPlans 46 false false R47.htm 2352301 - Disclosure - Condensed Consolidating Financial Information (Tables) Sheet http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformationTables Condensed Consolidating Financial Information (Tables) Tables http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformation 47 false false R48.htm 2401401 - Disclosure - General - Additional Information (Details) Sheet http://www.spectraenergy.com/role/GeneralAdditionalInformationDetails General - Additional Information (Details) Details 48 false false R49.htm 2401402 - Disclosure - General - Business Combination (Details) Sheet http://www.spectraenergy.com/role/GeneralBusinessCombinationDetails General - Business Combination (Details) Details 49 false false R50.htm 2405401 - Disclosure - Dispositions - Additional Information (Details) Sheet http://www.spectraenergy.com/role/DispositionsAdditionalInformationDetails Dispositions - Additional Information (Details) Details 50 false false R51.htm 2407402 - Disclosure - Business Segments - Additional Information (Details) Sheet http://www.spectraenergy.com/role/BusinessSegmentsAdditionalInformationDetails Business Segments - Additional Information (Details) Details 51 false false R52.htm 2407403 - Disclosure - Business Segments Data (Details) Sheet http://www.spectraenergy.com/role/BusinessSegmentsDataDetails Business Segments Data (Details) Details 52 false false R53.htm 2409401 - Disclosure - Regulatory Matters (Details) Sheet http://www.spectraenergy.com/role/RegulatoryMattersDetails Regulatory Matters (Details) Details http://www.spectraenergy.com/role/RegulatoryMatters 53 false false R54.htm 2410401 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://www.spectraenergy.com/role/IncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 54 false false R55.htm 2414402 - Disclosure - Earnings per Common Share - Basic and Diluted EPS Calculations (Details) Sheet http://www.spectraenergy.com/role/EarningsPerCommonShareBasicAndDilutedEpsCalculationsDetails Earnings per Common Share - Basic and Diluted EPS Calculations (Details) Details 55 false false R56.htm 2415402 - Disclosure - Accumulated Other Comprehensive Income (Details) Sheet http://www.spectraenergy.com/role/AccumulatedOtherComprehensiveIncomeDetails Accumulated Other Comprehensive Income (Details) Details http://www.spectraenergy.com/role/AccumulatedOtherComprehensiveIncomeTables 56 false false R57.htm 2421402 - Disclosure - Inventory - Components of Inventory (Details) Sheet http://www.spectraenergy.com/role/InventoryComponentsOfInventoryDetails Inventory - Components of Inventory (Details) Details 57 false false R58.htm 2429402 - Disclosure - Investments in and Loans to Unconsolidated Affiliates -Summarized Financial Information, Income Statement (Details) Sheet http://www.spectraenergy.com/role/InvestmentsInAndLoansToUnconsolidatedAffiliatesSummarizedFinancialInformationIncomeStatementDetails Investments in and Loans to Unconsolidated Affiliates -Summarized Financial Information, Income Statement (Details) Details 58 false false R59.htm 2429403 - Disclosure - Investments in and Loans to Unconsolidated Affiliates - Additional Information (Details) Sheet http://www.spectraenergy.com/role/InvestmentsInAndLoansToUnconsolidatedAffiliatesAdditionalInformationDetails Investments in and Loans to Unconsolidated Affiliates - Additional Information (Details) Details 59 false false R60.htm 2430402 - Disclosure - Variable Interest Entities (Details) Sheet http://www.spectraenergy.com/role/VariableInterestEntitiesDetails Variable Interest Entities (Details) Details http://www.spectraenergy.com/role/VariableInterestEntitiesTables 60 false false R61.htm 2430403 - Disclosure - Variable Interest Entities - Additional Information (Details) Sheet http://www.spectraenergy.com/role/VariableInterestEntitiesAdditionalInformationDetails Variable Interest Entities - Additional Information (Details) Details 61 false false R62.htm 2431401 - Disclosure - Intangible Asset - Additional Information (Details) Sheet http://www.spectraenergy.com/role/IntangibleAssetAdditionalInformationDetails Intangible Asset - Additional Information (Details) Details 62 false false R63.htm 2432401 - Disclosure - Goodwill (Details) Sheet http://www.spectraenergy.com/role/GoodwillDetails Goodwill (Details) Details http://www.spectraenergy.com/role/Goodwill 63 false false R64.htm 2433402 - Disclosure - Marketable Securities and Restricted Funds Schedule of Restricted and Non-restricted Available for Sale Securities (Details) Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFundsScheduleOfRestrictedAndNonRestrictedAvailableForSaleSecuritiesDetails Marketable Securities and Restricted Funds Schedule of Restricted and Non-restricted Available for Sale Securities (Details) Details 64 false false R65.htm 2433403 - Disclosure - Marketable Securities and Restricted Funds Schedule of Restricted and Non-restricted Available for Sale Securities - Additional Information (Details) Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFundsScheduleOfRestrictedAndNonRestrictedAvailableForSaleSecuritiesAdditionalInformationDetails Marketable Securities and Restricted Funds Schedule of Restricted and Non-restricted Available for Sale Securities - Additional Information (Details) Details 65 false false R66.htm 2433404 - Disclosure - Marketable Securities and Restricted Funds Schedule of Held to Maturity Securities (Details) Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFundsScheduleOfHeldToMaturitySecuritiesDetails Marketable Securities and Restricted Funds Schedule of Held to Maturity Securities (Details) Details 66 false false R67.htm 2433405 - Disclosure - Marketable Securities and Restricted Funds Schedule of Held to Maturity Securities - Additional Information (Details) Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFundsScheduleOfHeldToMaturitySecuritiesAdditionalInformationDetails Marketable Securities and Restricted Funds Schedule of Held to Maturity Securities - Additional Information (Details) Details 67 false false R68.htm 2433406 - Disclosure - Marketable Securities and Restricted Funds Schedule of Other Restricted Funds - Additional Information (Details) Sheet http://www.spectraenergy.com/role/MarketableSecuritiesAndRestrictedFundsScheduleOfOtherRestrictedFundsAdditionalInformationDetails Marketable Securities and Restricted Funds Schedule of Other Restricted Funds - Additional Information (Details) Details 68 false false R69.htm 2440402 - Disclosure - Debt and Credit Facilities Available Credit Facilities and Restrictive Debt Covenants (Details) Sheet http://www.spectraenergy.com/role/DebtAndCreditFacilitiesAvailableCreditFacilitiesAndRestrictiveDebtCovenantsDetails Debt and Credit Facilities Available Credit Facilities and Restrictive Debt Covenants (Details) Details 69 false false R70.htm 2440403 - Disclosure - Debt and Credit Facilities Available Credit Facilities and Restrictive Debt Covenants - Table Footnotes (Details) Notes http://www.spectraenergy.com/role/DebtAndCreditFacilitiesAvailableCreditFacilitiesAndRestrictiveDebtCovenantsTableFootnotesDetails Debt and Credit Facilities Available Credit Facilities and Restrictive Debt Covenants - Table Footnotes (Details) Details 70 false false R71.htm 2440404 - Disclosure - Debt and Credit Facilities Available Credit Facilities and Restrictive Debt Covenants - Additional Information (Details) Sheet http://www.spectraenergy.com/role/DebtAndCreditFacilitiesAvailableCreditFacilitiesAndRestrictiveDebtCovenantsAdditionalInformationDetails Debt and Credit Facilities Available Credit Facilities and Restrictive Debt Covenants - Additional Information (Details) Details 71 false false R72.htm 2441401 - Disclosure - Preferred Stock of Subsidiaries (Details) Sheet http://www.spectraenergy.com/role/PreferredStockOfSubsidiariesDetails Preferred Stock of Subsidiaries (Details) Details http://www.spectraenergy.com/role/PreferredStockOfSubsidiaries 72 false false R73.htm 2443402 - Disclosure - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis with Fair Value Hierarchy Levels (Details) Sheet http://www.spectraenergy.com/role/FairValueMeasurementsAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisWithFairValueHierarchyLevelsDetails Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis with Fair Value Hierarchy Levels (Details) Details 73 false false R74.htm 2443403 - Disclosure - Fair Value Measurements - Changes in Level 3 Assets and Liabilities that are Measured at Fair Value on Recurring Basis using Significant Unobservable Inputs (Details) Sheet http://www.spectraenergy.com/role/FairValueMeasurementsChangesInLevel3AssetsAndLiabilitiesThatAreMeasuredAtFairValueOnRecurringBasisUsingSignificantUnobservableInputsDetails Fair Value Measurements - Changes in Level 3 Assets and Liabilities that are Measured at Fair Value on Recurring Basis using Significant Unobservable Inputs (Details) Details 74 false false R75.htm 2443404 - Disclosure - Fair Value Measurements - Fair Value of Financial Instruments Recorded and Carried at Book Value (Details) Sheet http://www.spectraenergy.com/role/FairValueMeasurementsFairValueOfFinancialInstrumentsRecordedAndCarriedAtBookValueDetails Fair Value Measurements - Fair Value of Financial Instruments Recorded and Carried at Book Value (Details) Details 75 false false R76.htm 2443405 - Disclosure - Fair Value Measurements - Additional Information (Details) Sheet http://www.spectraenergy.com/role/FairValueMeasurementsAdditionalInformationDetails Fair Value Measurements - Additional Information (Details) Details 76 false false R77.htm 2444402 - Disclosure - Risk Management and Hedging Activities - Additional Information (Details) Sheet http://www.spectraenergy.com/role/RiskManagementAndHedgingActivitiesAdditionalInformationDetails Risk Management and Hedging Activities - Additional Information (Details) Details 77 false false R78.htm 2444403 - Disclosure - Risk Management and Hedging Activities - Information about Interest Rate Swaps (Details) Sheet http://www.spectraenergy.com/role/RiskManagementAndHedgingActivitiesInformationAboutInterestRateSwapsDetails Risk Management and Hedging Activities - Information about Interest Rate Swaps (Details) Details 78 false false R79.htm 2444404 - Disclosure - Risk Management and Hedging Activities - Commodity derivative assets and liabilities offsetting (Details) Sheet http://www.spectraenergy.com/role/RiskManagementAndHedgingActivitiesCommodityDerivativeAssetsAndLiabilitiesOffsettingDetails Risk Management and Hedging Activities - Commodity derivative assets and liabilities offsetting (Details) Details 79 false false R80.htm 2444405 - Disclosure - Risk Management and Hedging Activities - Commodity derivative impact (Details) Sheet http://www.spectraenergy.com/role/RiskManagementAndHedgingActivitiesCommodityDerivativeImpactDetails Risk Management and Hedging Activities - Commodity derivative impact (Details) Details 80 false false R81.htm 2445401 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.spectraenergy.com/role/CommitmentsAndContingenciesDetails Commitments and Contingencies (Details) Details http://www.spectraenergy.com/role/CommitmentsAndContingencies 81 false false R82.htm 2446401 - Disclosure - Guarantees and Indemnifications - Additional Information (Details) Sheet http://www.spectraenergy.com/role/GuaranteesAndIndemnificationsAdditionalInformationDetails Guarantees and Indemnifications - Additional Information (Details) Details 82 false false R83.htm 2447401 - Disclosure - Issuances of Common Stock - Additional Information (Details) Sheet http://www.spectraenergy.com/role/IssuancesOfCommonStockAdditionalInformationDetails Issuances of Common Stock - Additional Information (Details) Details 83 false false R84.htm 2449402 - Disclosure - Issuances of SEP Units - Effects of Issuances (Details) Sheet http://www.spectraenergy.com/role/IssuancesOfSepUnitsEffectsOfIssuancesDetails Issuances of SEP Units - Effects of Issuances (Details) Details 84 false false R85.htm 2449403 - Disclosure - Issuances of SEP Units - Additional Information (Details) Sheet http://www.spectraenergy.com/role/IssuancesOfSepUnitsAdditionalInformationDetails Issuances of SEP Units - Additional Information (Details) Details 85 false false R86.htm 2450402 - Disclosure - Employee Benefit Plans - Other Post Retirement Benefit Plans Components of Net Periodic Benefit Cost (Detail) Sheet http://www.spectraenergy.com/role/EmployeeBenefitPlansOtherPostRetirementBenefitPlansComponentsOfNetPeriodicBenefitCostDetail Employee Benefit Plans - Other Post Retirement Benefit Plans Components of Net Periodic Benefit Cost (Detail) Details 86 false false R87.htm 2450403 - Disclosure - Employee Benefit Plans - Additional Information (Details) Sheet http://www.spectraenergy.com/role/EmployeeBenefitPlansAdditionalInformationDetails Employee Benefit Plans - Additional Information (Details) Details 87 false false R88.htm 2452402 - Disclosure - Condensed Consolidating Financial Information Condensed Consolidating Statements of Operations (Details) Sheet http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementsOfOperationsDetails Condensed Consolidating Financial Information Condensed Consolidating Statements of Operations (Details) Details 88 false false R89.htm 2452403 - Disclosure - Condensed Consolidating Financial Information Condensed Consolidating Statements of Comprehensive Income (Detail) Sheet http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementsOfComprehensiveIncomeDetail Condensed Consolidating Financial Information Condensed Consolidating Statements of Comprehensive Income (Detail) Details 89 false false R90.htm 2452404 - Disclosure - Condensed Consolidating Financial Information Condensed Consolidating Balance Sheet (Details) Sheet http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingBalanceSheetDetails Condensed Consolidating Financial Information Condensed Consolidating Balance Sheet (Details) Details 90 false false R91.htm 2452405 - Disclosure - Condensed Consolidating Financial Information Condensed Consolidating Statement of Cash Flows (Details) Sheet http://www.spectraenergy.com/role/CondensedConsolidatingFinancialInformationCondensedConsolidatingStatementOfCashFlowsDetails Condensed Consolidating Financial Information Condensed Consolidating Statement of Cash Flows (Details) Details 91 false false R92.htm 2455401 - Disclosure - Subsequent Events (Details) Sheet http://www.spectraenergy.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://www.spectraenergy.com/role/SubsequentEvents 92 false false All Reports Book All Reports se-20160930.xml se-20160930.xsd se-20160930_cal.xml se-20160930_def.xml se-20160930_lab.xml se-20160930_pre.xml true true