v3.26.1
Business segments - Table Narrative (Detail) - CAD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Revenue from contracts with customers $ 13,547 $ 9,559 $ 23,379 $ 19,694
Revenue outside the scope of ASC 606 2,434 1,649 5,018 3,980
Revenues including federal excise tax [1] 15,981 11,208 28,397 23,674
United States Exports        
Segment Reporting [Line Items]        
Revenues including federal excise tax $ 3,432 $ 1,915 $ 5,633 $ 4,706
[1]
(a) Amounts from related parties included in revenues.5,186 3,342 8,846 6,995