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DEBT - Long Term Debt Repayments (Details) $ in Millions, $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2021 CAD ($) | Feb. 28, 2021 CAD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2021 CAD ($)
DEBT |  |  |  |  |
Principal Amount |  |  |  | $ 250 | $ 600
Spectra Energy Partners, LP | 4.60% senior notes |  |  |  |  |
DEBT |  |  |  |  |
Principal Amount | $ 250 |  |  |  |
Interest rate (as a percent) |  |  | 4.60% |  |
Enbridge Inc. | 4.26% medium-term notes |  |  |  |  |
DEBT |  |  |  |  |
Principal Amount |  |  | $ 200 |  |
Interest rate (as a percent) |  |  | 4.26% |  |
Enbridge Inc. | 3.16% medium-term notes |  |  |  |  |
DEBT |  |  |  |  |
Principal Amount |  | $ 400 |  |  |
Interest rate (as a percent) |  |  | 3.16% |  |

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- 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=120391452&loc=d3e13212-122682 + Details
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