v3.25.4
Leases (Lease Assets and Liabilities) (Details) - CAD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Lease right-of-use assets    
Finance leases $ 368 $ 381
Operating leases 440 485
Total lease right-of-use assets $ 808 $ 866
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Properties Properties
Current    
Finance leases $ 4 $ 1
Operating leases $ 108 $ 134
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Less: Current portion of long-term debt Less: Current portion of long-term debt
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Accounts payable and other Accounts payable and other
Noncurrent    
Finance leases $ 1 $ 6
Operating leases $ 316 $ 343
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Long-term debt Long-term debt
Total lease liabilities $ 429 $ 484