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v3.25.0.1

Long-Term Debt (Summary of Long-Term Debt, Revolving Credit Facilities, Outstanding Borrowings and Available Capacity) (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Debt Instrument [Line Items] |  |
Debt issuance costs | $ (137) | $ (125)
Classification as liabilities held for sale (5) | (696) | 0
Amount due within one year | (234) | (676)
Long Term Debt, Adjustments | (1,067) | (801)
Long-Term Debt | 18,173 | 17,689
Interest expense | 110 | 109
Gas Utilities and Infrastructure |  |
Debt Instrument [Line Items] |  |
Long-term debt | 2,279 | 2,339
Other Electric Utilities |  |
Debt Instrument [Line Items] |  |
Long-term debt | 416 | 422
Other |  |
Debt Instrument [Line Items] |  |
Long-term debt | 7,464 | 6,189
NSPI | Canadian Electric Utilities |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 3,361 | $ 3,886
Fixed to floating subordinated notes | Other |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 6.75% | 6.75%
Maturity | 2076 |
Long-term debt | $ 1,727 | $ 1,587
Commercial Paper | NSPI | Canadian Electric Utilities |  |
Debt Instrument [Line Items] |  |
Interest Rate Terms | Variable | Variable
Maturity | 2029 |
Long-term debt | $ 177 | $ 721
Senior unsecured notes | Florida Electric Utility |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 4.36% | 4.61%
Maturity | 2029 - 2051 |
Long-term debt | $ 5,720 | $ 5,654
Senior unsecured notes | Other |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 3.99% | 3.65%
Maturity | 2026 - 2046 |
Long-term debt | $ 3,525 | $ 3,637
Senior unsecured notes | PGS | Gas Utilities and Infrastructure |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 5.63% | 5.63%
Maturity | 2028 - 2053 |
Long-term debt | $ 1,331 | $ 1,223
Senior unsecured notes | NMGC | Gas Utilities and Infrastructure |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 3.78% | 3.78%
Maturity | 2026 - 2051 |
Long-term debt | $ 698 | $ 642
Senior unsecured notes | NMGI | Gas Utilities and Infrastructure |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate |  | 3.64%
Maturity | 2024 |
Long-term debt | $ 0 | $ 198
Senior unsecured notes | NSPI | Canadian Electric Utilities |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 5.12% | 5.13%
Maturity | 2025 - 2097 |
Long-term debt | $ 3,184 | $ 3,165
Senior unsecured notes | Other |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 4.84% | 4.84%
Maturity | 2030 |
Long-term debt | $ 500 | $ 500
Unsecured loan notes | Other Electric Utilities |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 4.06% | 4.78%
Maturity | 2025 - 2028 |
Long-term debt | $ 143 | $ 121
Unsecured loan notes | Other |  |
Debt Instrument [Line Items] |  |
Interest Rate Terms | Variable | Variable
Maturity | 2026 - 2029 |
Long-term debt | $ 992 | $ 465
Unsecured loan notes | NMGC | Gas Utilities and Infrastructure |  |
Debt Instrument [Line Items] |  |
Interest Rate Terms |  | Variable
Maturity | 2024 |
Long-term debt | $ 0 | $ 30
Unsecured loan notes | Other Electric Utilities |  |
Debt Instrument [Line Items] |  |
Interest Rate Terms | Variable | Variable
Maturity | 2025 - 2027 |
Long-term debt | $ 104 | $ 104
Secured loan notes | EBP | Gas Utilities and Infrastructure |  |
Debt Instrument [Line Items] |  |
Interest Rate Terms | Variable | Variable
Maturity | 2028 |
Long-term debt | $ 250 | $ 246
Secured senior notes and debentures | Other Electric Utilities |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 2.38% | 3.06%
Maturity | 2026 - 2040 |
Long-term debt | $ 169 | $ 197
Junior subordinated notes | Other |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 7.63% | 0.00%
Maturity | 2054 |
Long-term debt | $ 720 | $ 0

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