XML 194 R112.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

DEBT - Schedule of Long-term Debt Issuances (Details) | 1 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | Nov. 30, 2019 USD ($) | Oct. 31, 2019 CAD ($) | Aug. 31, 2019 USD ($) | Aug. 31, 2019 CAD ($) | Feb. 28, 2019 CAD ($) | Apr. 30, 2018 CAD ($) | Jan. 31, 2018 USD ($)
Enbridge Gas Distribution Inc. | 2.37% medium-term notes due August 2029 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  | $ 400,000,000 |  |  |
Fixed interest rate (as a percent) |  |  |  |  | 2.37% | 2.37% |  |  |
Enbridge Gas Distribution Inc. | 3.01% medium-term notes due August 2049 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  | $ 300,000,000 |  |  |
Fixed interest rate (as a percent) |  |  |  |  | 3.01% | 3.01% |  |  |
Enbridge Pipelines Inc. | 3.52% medium-term notes due February 2029 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  | $ 600,000,000 |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 3.52% |  |
Enbridge Pipelines Inc. | 4.33% medium-term notes due February 2049 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  | $ 600,000,000 |  |
Fixed interest rate (as a percent) |  |  |  |  |  |  | 4.33% |  |
Spectra Energy Partners, LP | 3.24% senior notes due August 20294 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  | $ 500,000,000 |  |  |  |
Fixed interest rate (as a percent) |  |  |  |  | 3.24% | 3.24% |  |  |
Spectra Energy Partners, LP | 3.50% senior notes due January 20285 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |  |  | $ 400,000,000
Fixed interest rate (as a percent) |  |  |  |  |  |  |  |  | 3.50%
Spectra Energy Partners, LP | 4.15% senior notes due January 20485 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |  |  | $ 400,000,000
Fixed interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.15%
Enbridge Inc. | 2.99% medium-term notes due October 2029 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  | $ 1,000,000,000 |  |  |  |  |
Fixed interest rate (as a percent) |  |  |  | 2.99% |  |  |  |  |
Enbridge Inc. | 2.50% senior notes due July 2025 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  | $ 500,000,000 |  |  |  |  |  |
Fixed interest rate (as a percent) |  |  | 2.50% |  |  |  |  |  |
Enbridge Inc. | 3.13% senior notes due November 2029 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  | $ 1,000,000,000 |  |  |  |  |  |
Fixed interest rate (as a percent) |  |  | 3.13% |  |  |  |  |  |
Enbridge Inc. | 4.00% senior notes due November 2049 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  | $ 500,000,000 |  |  |  |  |  |
Fixed interest rate (as a percent) |  |  | 4.00% |  |  |  |  |  |
Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  | $ 850,000,000 |  |  |  |  |  |  |
Term of credit facility |  | 60 years |  |  |  |  |  |  |
Callable period |  | 10 years |  |  |  |  |  |  |
Term of fixed rate |  | 10 years |  |  |  |  |  |  |
Fixed interest rate (as a percent) |  | 6.25% |  |  |  |  |  |  |
Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount |  |  |  |  |  |  |  | $ 750,000,000 |
Term of credit facility | 60 years |  |  |  |  |  |  |  |
Callable period | 10 years |  |  |  |  |  |  |  |
Term of fixed rate | 10 years |  |  |  |  |  |  |  |
Fixed interest rate (as a percent) | 6.625% |  |  |  |  |  |  | 6.625% |
Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Principal Amount | $ 600,000,000 |  |  |  |  |  |  |  |
Term of credit facility | 60 years |  |  |  |  |  |  |  |
Callable period | 5 years |  |  |  |  |  |  |  |
Term of fixed rate | 5 years |  |  |  |  |  |  |  |
Fixed interest rate (as a percent) | 6.375% |  |  |  |  |  |  | 6.375% |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 3.64% |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 4.32% |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 3.59% |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate |  | 10 years |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 10 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 5 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate |  | 30 years |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 30 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period One | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 10 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 4.39% |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 5.07% |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 3.84% |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate |  | 30 years |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 30 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 10 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due March 20781 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate |  | 60 years |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20782 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 60 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Two | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 25 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Three | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 4.59% |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Three | Minimum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 25 years |  |  |  |  |  |  |  |
Debt Instrument, Redemption, Period Three | Maximum | Enbridge Inc. | Fixed-to-floating rate subordinated notes due April 20783 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Period when the notes carry a variable interest rate | 60 years |  |  |  |  |  |  |  |

X
- Definition Debt Instrument, Callable Period + References No definition available. + Details
Name: | enb_DebtInstrumentCallablePeriod
Namespace Prefix: | enb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Term Of Fixed Interest Rate + References No definition available. + Details
Name: | enb_DebtInstrumentTermOfFixedInterestRate
Namespace Prefix: | enb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Variable Rate Period Subsequent To Fixed Rate Period + References No definition available. + Details
Name: | enb_DebtInstrumentVariableRatePeriodSubsequentToFixedRatePeriod
Namespace Prefix: | enb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=enb_EnbridgeGasDistributionIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A2.37MediumTermNotesDueAugust2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A3.01MediumTermNotesDueAugust2049Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=enb_EnbridgePipelinesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A3.52MediumTermNotesDueFebruary2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A4.33MediumTermNotesDueFebruary2049Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=enb_SpectraEnergyPartnersLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A3.24SeniorNotesDueAugust2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A3.50SeniorNotesDue2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A4.15SeniorNotesDue2048Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A2.99MediumTermNotesDue2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A2.50MediumtermNotesDueJuly2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A3.13MediumTermNotesDueNovember2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_A4.00MediumTermNotesDueNovember2049Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_FixedtoFloatingRateNotesDue2078Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_FixedtoFloatingRateNotesDue2078IssuedApril2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=enb_FixedtoFloatingRateNotesDue2078USBasedIssuedApril2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |