PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - CAD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Property, Plant and Equipment [Line Items] | |||
| Depreciation expense | $ 4,600 | $ 4,000 | $ 3,800 |
| Chapman Ranch Wind Farm | |||
| Property, Plant and Equipment [Line Items] | |||
| Impairment loss | $ 251 | ||
| Magic Valley Wind Farm | |||
| Property, Plant and Equipment [Line Items] | |||
| Impairment loss | 227 | ||
| Bakken Pipeline System | |||
| Property, Plant and Equipment [Line Items] | |||
| Impairment loss | $ 183 | ||