XML 127 R100.htm IDEA: XBRL DOCUMENT v3.25.0.1
Capital Commitments - Additional Information (Detail) - CAD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure of capital commitments [Line Items]    
Commitments to purchase property, plant and equipment $ 128 $ 175
2025 [Member]    
Disclosure of capital commitments [Line Items]    
Commitments to purchase property, plant and equipment 92  
2026 [Member]    
Disclosure of capital commitments [Line Items]    
Commitments to purchase property, plant and equipment 17  
2027 [Member]    
Disclosure of capital commitments [Line Items]    
Commitments to purchase property, plant and equipment $ 19