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DEBT - LONG TERM DEBT ISSUANCE (Details) - USD ($) $ in Millions | 1 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Jan. 31, 2018
3.50% Senior Notes Due 2028 | Spectra Energy Partners, LP |  |
DEBT |  |
Face amount of notes issued |  | $ 400
Interest rate (as a percent) |  | 3.50%
4.15% Senior Notes Due 2048 | Spectra Energy Partners, LP |  |
DEBT |  |
Face amount of notes issued |  | $ 400
Interest rate (as a percent) |  | 4.15%
Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 |  |
DEBT |  |
Face amount of notes issued | $ 850 |
Interest rate (as a percent) | 6.25% |
Maturity period of debt | 60 years |
Callable period | 10 years |
Term of fixed interest rate | 10 years |
Debt Instrument, Redemption, Period One | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 |  |
DEBT |  |
Basis spread on variable rate (as a percent) | 364.10% |
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 Two | Enbridge Inc. | Fixed to Floating Rate Notes Due 2078 |  |
DEBT |  |
Basis spread on variable rate (as a percent) | 439.10% |
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 |

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