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Property, Plant And Equipment And Energy Infrastructure Assets - Additional Information (Detail) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Energy infrastructure assets [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Impairment loss recognised in profit or loss, rental equipment $ 2 $ 1
Earnings Or Loss [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Impact of the reclassification on property, plant and equipment depreciation 199 99
Cost Of Goods Sold [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Impact of the reclassification on property, plant and equipment depreciation 183 95
Selling And Administrative Expenses [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Impact of the reclassification on property, plant and equipment depreciation $ 16 $ 4