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FAIR VALUE MEASUREMENT - Derivative contracts (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Financial Instruments    
Unrealized fair value of derivative assets, current $ 25.5 $ 30.0
Unrealized fair value of derivative assets, non-current 1.5 15.1
Unrealized fair value of derivative assets 27.0 45.1
Unrealized fair value of derivative liabilities, current (0.8) (4.0)
Unrealized fair value of derivative liabilities, non-current   (3.5)
Unrealized fair value of derivative liabilities (0.8) (7.5)
Net asset (liability) 26.2 37.6
TRS    
Financial Instruments    
Net asset (liability) 1.9 1.7
Unrealized gain (loss) recorded in AOCI 0.0 0.0
Derivative Contracts    
Financial Instruments    
Net asset (liability) 26.2 37.6
Unrealized gain (loss) recorded in AOCI 17.5 26.9
Foreign currency forward and collar contracts    
Financial Instruments    
Net asset (liability) 2.8 (4.5)
Unrealized gain (loss) recorded in AOCI 1.3 (3.5)
Reclassification of amounts to net earnings within the next 12 months as a result of settling the contracts 0.4  
Energy swap contracts    
Financial Instruments    
Net asset (liability) 21.5 40.4
Unrealized gain (loss) recorded in AOCI 16.2 $ 30.4
Reclassification of amounts to net earnings within the next 12 months as a result of settling the contracts $ 16.2