v3.26.1
FINANCIAL INSTRUMENTS AND FINANCIAL RISK MANAGEMENT - Changes to the provision for expected credit losses (Details) - Trade receivables - Provision for expected credit losses - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
FINANCIAL INSTRUMENTS AND FINANCIAL RISK MANAGEMENT    
Balance at beginning of year $ 39.7 $ 58.6
Changes in expected credit losses charged to income 49.9 49.5
Write-off (46.7) (68.4)
Balance at end of year $ 42.9 $ 39.7