v3.24.0.1
DIVESTITURES (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Noncurrent Assets Or Disposal Groups Classified As Held For Sale [Line items]    
Proceeds from divestitures $ 1,649.2 $ 341.7
U.S. Solid Waste Business Divestiture    
Noncurrent Assets Or Disposal Groups Classified As Held For Sale [Line items]    
Proceeds from divestitures 1,649.2  
Gain on divestiture $ 575.0