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DEBT - Schedule of Long-Term Debt Repayments (Details) $ in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 CAD ($) | Dec. 31, 2022 USD ($) | Nov. 30, 2022 CAD ($) | Oct. 31, 2022 USD ($) | Jul. 31, 2022 USD ($) | Jun. 30, 2022 CAD ($) | Jun. 30, 2022 USD ($) | Apr. 30, 2022 CAD ($) | Feb. 28, 2022 CAD ($) | Feb. 28, 2022 USD ($) | Dec. 31, 2022 CAD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 | Oct. 31, 2021 | Jun. 30, 2021 | May 31, 2021 | Mar. 31, 2021 | Feb. 28, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  |  |  |  |  |  |  |  | $ 1,500 | $ 2,000 |  |  |  |  |  |
Enbridge Gas Inc. | 4.85% Medium-Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  | 4.85% |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  |  |  |  |  | $ 125 |  |  |  |  |  |  |  |  |  |
Enbridge Gas Inc. | 2.76% Medium-Term Notes May 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 276.00% |  |
Enbridge Gas Inc. | 4.77% Medium-Term Notes December 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  | 477.00% |  |  |  |  |
Enbridge Pipelines (Southern Lights) L.L.C. | 3.98% Senior Notes Due 2040 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) | 3.98% | 3.98% |  |  |  | 3.98% | 3.98% |  |  |  | 3.98% | 3.98% |  |  |  |  |  |
Extinguishment of debt |  | $ 72 |  |  |  |  | $ 72 |  |  |  |  |  |  |  |  |  |  |
Enbridge Pipelines (Southern Lights) L.L.C. | 3.98% Senior Notes June and December 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  | 398.00% |  | 398.00% |  |  |
Enbridge Pipelines Inc. | 2.93 % Medium-Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  | 2.93% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  | $ 150 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Enbridge Southern Lights LP | 4.10 % Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) | 4.01% | 4.01% |  |  |  | 4.01% | 4.01% |  |  |  | 4.01% | 4.01% |  |  |  |  |  |
Extinguishment of debt | $ 18 |  |  |  |  | $ 18 |  |  |  |  |  |  |  |  |  |  |  |
Enbridge Southern Lights LP | 4.01% Senior Notes June and December 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  | 401.00% |  | 401.00% |  |  |
Texas Eastern Transmission, LP | 2.80 % Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  | 2.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  | $ 500 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Westcoast Energy Inc. | 3.12% Medium- Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) | 3.12% | 3.12% |  |  |  |  |  |  |  |  | 3.12% | 3.12% |  |  |  |  |  |
Extinguishment of debt | $ 250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Westcoast Energy Inc. | 3.88% Medium-Term Notes October 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 388.00% |  |  |  |
Enbridge Energy Partners, L.P. | 4.20% Senior Notes June 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 420.00% |  |  |
Enbridge Inc. | Floating Rate Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  |  |  |  |  |  |  | $ 750 |  |  |  |  |  |  |  |
Enbridge Inc. | Floating Rate Notes | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  |  |  |  |  |  |  | 0.50% | 0.50% |  |  |  |  |  |
Enbridge Inc. | 4.85% Medium-Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  | 4.85% | 4.85% |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  |  |  |  |  |  | $ 200 |  |  |  |  |  |  |  |  |
Enbridge Inc. | 2.90% Senior Notes Due July 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  | 2.90% |  |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  |  | $ 700 |  |  |  |  |  |  |  |  |  |  |  |  |
Enbridge Inc. | 3.19% Medium- Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) | 3.19% | 3.19% |  |  |  |  |  |  |  |  | 3.19% | 3.19% |  |  |  |  |  |
Extinguishment of debt | $ 350 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Enbridge Inc. | 3.19% Medium- Term Notes, Second |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) | 3.19% | 3.19% |  |  |  |  |  |  |  |  | 3.19% | 3.19% |  |  |  |  |  |
Extinguishment of debt | $ 450 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Enbridge Inc. | 3.16% Medium-Term Notes March 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 316.00% |
Enbridge Inc. | 4.26% Medium-Term Notes February 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 426.00%
Spectra Energy Partners, LP | 4.60% senior notes March 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 460.00% |

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