v3.25.4
Other current assets (Details) - CAD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid expenses $ 208 $ 113
Income taxes receivable 0 143
Derivative instruments 0 38
Other 49 40
Total other current assets $ 257 $ 334