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FINANCIAL INSTRUMENTS - Commodity Price Risk Management (Details)
12 Months Ended
Dec. 31, 2022
$ / MMBTU
tons
Dec. 31, 2021
$ / MMBTU
tons
Commodity swap    
Derivative [Line Items]    
Notional quantity | tons 4,839,000 1,209,753
Minimum    
Derivative [Line Items]    
Derivative, forward price 49.50 23.25
Maximum    
Derivative [Line Items]    
Derivative, forward price 51.20 28.00