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Consolidated Statements of Changes in Equity (Parenthetical) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Consolidated Statements of Changes in Equity    
Other comprehensive loss, tax expense/recovery $ 1 $ 14
Dividends per common share declared $ 2.6775 $ 2.5750