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PROVISIONS - Provisions (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of other provisions [line items]      
Total provisions $ 365.5 $ 316.0  
Current portion of provisions 5.4 5.6  
Non-current provisions 360.1 310.4  
Asset retirement obligations      
Disclosure of other provisions [line items]      
Total provisions 347.4 298.5 $ 460.4
Current portion of provisions 5.4 5.6  
Non-current provisions 342.0 292.9  
Other      
Disclosure of other provisions [line items]      
Total provisions $ 18.1 $ 17.5