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Payables and accrued liabilities
 12 Months Ended
Dec. 31, 2024
Subclassifications of assets, liabilities and equities [abstract]  
Payables and accrued liabilities Payables and accrued liabilities
December 31,December 31,
As atNote20242023
Trade accounts$401 $417 
Accrued equity-based compensation1641 53 
Compensation56 66 
Accrued export duties268 5 
Accrued dividends26 25 
Accrued interest2 5 
Electricity swaps4 — 
Current portion of lease obligations10 13 
Restructuring provision5 3 
Other52 33 
$604 $620