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OTHER LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2023
Subclassifications of assets, liabilities and equities [abstract]  
Components of derivative liabilities
NotesDecember 31,
2023
December 31,
2022
Hedge derivatives21(c)(i)$9.2 $4.8 
Non-hedge derivatives1.9 13.9 
Yatela liability(a)18.5 18.5 
Other liabilities— 1.0 
$29.6 $38.2 
Current portion of other liabilities$29.6 $18.6 
Non-current portion of other liabilities— 19.6 
$29.6 $38.2