v3.24.0.1
DISCONTINUED OPERATIONS - Post tax results of discontinued operations (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of analysis of single amount of discontinued operations [line items]    
Revenue $ 7,515.5 $ 6,761.3
Expenses 7,261.8 7,141.3
Loss before income taxes 192.1 (359.3)
Net loss 0.0 (127.9)
Net loss and comprehensive loss from discontinued operations $ 0.0 (127.9)
GFL Infrastructure    
Disclosure of analysis of single amount of discontinued operations [line items]    
Revenue   96.8
Expenses   98.4
Loss before income taxes   (1.6)
Income tax expense   5.0
Net loss   (6.6)
Impairment   (121.3)
Net loss and comprehensive loss from discontinued operations   $ (127.9)