v3.25.4
LEASES - Summary of Other Information Related to Operating Leases (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Leases [Abstract]    
Lease expense $ 17 $ 17
Lease payments made $ 17 $ 16
Weighted-average remaining lease term (in years) 3 years 4 years
Weighted-average discount rate 2.80% 2.90%