v3.26.1
Consolidated statement of comprehensive income (U.S. GAAP, unaudited) - CAD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Statement of Comprehensive Income [Abstract]    
Net income (loss) $ 940 $ 1,288
Other comprehensive income (loss), net of income taxes    
Postretirement benefits liability adjustment (excluding amortization) (28) 12
Amortization of postretirement benefits liability adjustment included in net benefit costs 3 5
Total other comprehensive income (loss) (25) 17
Comprehensive income (loss) $ 915 $ 1,305