v3.26.1
Financing costs
 6 Months Ended
Jun. 30, 2026
Financing costs and additional notes and loans payable information [Abstract]  
Financing costs Financing costs
       Second Quarter
       Six Months
       to June 30
millions of Canadian dollars2026 2025 2026 2025 
Debt-related interest
33 27 64 64 
Capitalized interest
(23)(25)(44)(52)
Net interest expense
10 2 20 12 
Other interest
4 — 5 (12)
Total financing
14 2 25 —