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Inventories (Details) - CAD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Public Utilities, Inventory [Line Items] |  |
Inventories | $ 685 | $ 566
Materials and supplies |  |
Public Utilities, Inventory [Line Items] |  |
Inventories | 548 | 431
Gas and fuel in storage |  |
Public Utilities, Inventory [Line Items] |  |
Inventories | 65 | 96
Coal inventory |  |
Public Utilities, Inventory [Line Items] |  |
Inventories | $ 72 | $ 39

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- Definition The period end amount for a type of inventory held by the utility in a schedule of inventories. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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