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DEBT - LONG TERM DEBT ISSUANCE (Details) | 1 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2018 CAD ($) | Mar. 31, 2018 USD ($) | Apr. 30, 2018 USD ($) | Jan. 31, 2018 USD ($)
3.50% Senior Notes Due 2028 | Spectra Energy Partners, LP |  |  |  |
DEBT |  |  |  |
Face amount of notes issued |  |  |  | $ 400,000,000
Interest rate (as a percent) |  |  |  | 3.50%
4.15% Senior Notes Due 2048 | Spectra Energy Partners, LP |  |  |  |
DEBT |  |  |  |
Face amount of notes issued |  |  |  | $ 400,000,000
Interest rate (as a percent) |  |  |  | 4.15%
Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 |  |  |  |
DEBT |  |  |  |
Face amount of notes issued |  | $ 850,000,000 |  |
Interest rate (as a percent) |  | 6.25% |  |
Maturity period of debt |  | 60 years |  |
Callable period |  | 10 years |  |
Term of fixed interest rate |  | 10 years |  |
Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 |  |  |  |
DEBT |  |  |  |
Face amount of notes issued | $ 750,000,000 |  |  |
Interest rate (as a percent) | 6.625% |  | 6.625% |
Maturity period of debt | 60 years |  |  |
Callable period | 10 years |  |  |
Term of fixed interest rate | 10 years |  |  |
Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 |  |  |  |
DEBT |  |  |  |
Face amount of notes issued |  |  | $ 600,000,000 |
Interest rate (as a percent) | 6.375% |  | 6.375% |
Maturity period of debt | 60 years |  |  |
Callable period | 5 years |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) |  | 3.64% |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period |  | 10 years |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period |  | 30 years |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) | 4.32% |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 10 years |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 30 years |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) | 3.59% |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 5 years |  |  |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 10 years |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) |  | 4.39% |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period |  | 30 years |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period |  | 60 years |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) | 5.07% |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 30 years |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, Issued April 2018 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 60 years |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) | 3.84% |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 10 years |  |  |
Debt Instrument, Redemption, Period Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 25 years |  |  |
Debt Instrument, Redemption, Period Three | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 |  |  |  |
DEBT |  |  |  |
Basis spread on variable rate (as a percent) | 4.59% |  |  |
Debt Instrument, Redemption, Period Three | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 | Minimum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 25 years |  |  |
Debt Instrument, Redemption, Period Three | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078, US Based Issued April 2018 | Maximum |  |  |  |
DEBT |  |  |  |
Variable rate period subsequent to fixed rate period | 60 years |  |  |

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