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DEBT - Narrative (Details) $ in Millions |  |  |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 USD ($) | May 31, 2024 USD ($) | Mar. 06, 2024 USD ($) | Jan. 02, 2024 USD ($) | Oct. 31, 2024 CAD ($) | Jul. 31, 2024 CAD ($) | Jun. 30, 2024 USD ($) | Jan. 31, 2024 CAD ($) | Dec. 31, 2024 CAD ($) | Mar. 31, 2024 CAD ($) | Dec. 31, 2023 CAD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt (Note 17) |  |  |  |  |  |  |  |  | $ 93,414,000,000 |  | $ 74,715,000,000
The East Ohio Gas Company |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in debt |  |  | $ 1,900 |  |  |  |  |  |  |  |
RNG Facilities |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in debt |  |  |  | $ 568 |  |  |  |  |  |  |
Questar Acquisition |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in debt |  | $ 1,000 |  |  |  |  |  |  |  |  |
Public Service Company of North Carolina, Incorporated |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in debt | $ 1,100 |  |  |  |  |  |  |  |  |  |
Enbridge Gas Inc. |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  |  |  |  | 2,500,000,000 |  |
Available |  |  |  |  |  |  |  |  | 1,970,000,000 |  |
Enbridge Pipelines Inc. |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  |  |  |  | 2,000,000,000 |  |
Available |  |  |  |  |  |  |  |  | 1,491,000,000 |  |
Commercial paper and credit facility draws |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt (Note 17) |  |  |  |  |  |  |  |  | 10,300,000,000 |  | 3,800,000,000
Committed credit facilities |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  |  |  |  | $ 24,153,000,000 |  |
Term out option period (in years) |  |  |  |  |  |  |  |  | 1 year |  |
Available |  |  |  |  |  |  |  |  | $ 12,564,000,000 |  |
Committed credit facilities | Delayed-Draw Term Loan Facility Maturing In March 2049 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  |  |  |  |  | $ 200,000,000 |
Committed credit facilities | 364-Day Extendible Credit Facility | Enbridge Gas Inc. |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Term of credit facility |  |  |  |  |  | 364 days |  |  |  |  |
Term out option period (in years) |  |  |  |  |  | 1 year |  |  |  |  |
Committed credit facilities | 364-Day Extendible Credit Facility | Enbridge Pipelines Inc. |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Term of credit facility |  |  |  |  |  | 364 days |  |  |  |  |
Term out option period (in years) |  |  |  |  |  | 1 year |  |  |  |  |
Non-Revolving Term Loan Facility | Non-Revolving Term Loan Facility Maturing In June 2029 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  |  | $ 250 |  |  |  |
Term of credit facility |  |  |  |  |  |  | 5 years |  |  |  |
Revolving Credit Facility | 364-Day Extendible Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  | $ 8,800,000,000 |  |  |  |  |
Term of credit facility |  |  |  |  |  | 364 days |  |  |  |  |
Term out option period (in years) |  |  |  |  |  | 1 year |  |  |  |  |
Revolving Credit Facility | Five-Year Credit Facilities |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  | $ 7,800,000,000 |  |  |  |  |
Term of credit facility |  |  |  |  |  | 5 years |  |  |  |  |
Revolving Credit Facility | Term Loan Maturing In July 2027 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Term of credit facility |  |  |  |  |  | 3 years |  |  |  |  |
Uncommitted Credit Facilities |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility capacity |  |  |  |  |  |  |  |  | 1,400,000,000 |  | 1,100,000,000
Available |  |  |  |  |  |  |  |  | $ 931,000,000 |  | $ 572,000,000
Weighted average standby fee (as a percent) |  |  |  |  |  |  |  |  | 0.10% |  |
Letter of Credit |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, increase (decrease) |  |  |  |  | $ 200,000,000 |  |  | $ 146,000,000 |  |  |

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