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Non-Operating Income (Expense) (Tables)
12 Months Ended
Dec. 31, 2021
Analysis of income and expense [abstract]  
Schedule of Non-Operating Income (Expense)
(CAD$ in millions)20212020
QB2 variable consideration to IMSA and ENAMI (a)$(141)$56 
Foreign exchange gains (losses)
39 (2)
Loss on debt redemption or purchase (Note 18(b))
 (11)
Other(3)— 
$(105)$43 

a) QB2 variable consideration to IMSA and ENAMI