Inventories (Details) - CAD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Public Utilities, Inventory [Line Items] | ||
| Inventories | $ 566 | $ 661 |
| Materials and supplies | ||
| Public Utilities, Inventory [Line Items] | ||
| Inventories | 431 | 394 |
| Gas and fuel in storage | ||
| Public Utilities, Inventory [Line Items] | ||
| Inventories | 96 | 235 |
| Coal inventory | ||
| Public Utilities, Inventory [Line Items] | ||
| Inventories | $ 39 | $ 32 |