v3.25.4
Other income (expense) (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Analysis of income and expense [abstract]    
Net early debt redemption gains $ 249 $ 0
Interest income 79 123
Equity income (losses) from investments in associates and joint ventures    
Loss on investment 0 (247)
Operations 8 10
Losses on retirements and disposals of property, plant and equipment and intangible assets (26) (38)
Net mark-to-market losses on derivatives used to economically hedge equity settled share-based compensation plans (9) (269)
Other (14) 59
Total other income (expense) [1] $ 287 (362)
Loss on investment   $ 247
[1]
(1)We have presented amounts from the previous period to make them consistent with the presentation of the current period.