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Segmented Information - Summary Of Detailed Information About Geographical Areas (Parenthetical) (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Jan. 01, 2023
 [1]
Dec. 31, 2022
Disclosure of geographical areas [line items]        
Goodwill $ 422 $ 433 $ 498 $ 498
NAM [member]        
Disclosure of geographical areas [line items]        
Depreciation and amortization 74 69    
Goodwill 164 167   166
LATAM [Member]        
Disclosure of geographical areas [line items]        
Depreciation and amortization 53 48    
Goodwill       66
EH [Member]        
Disclosure of geographical areas [line items]        
Depreciation and amortization 58 81    
Goodwill 258 266   266
CANADA        
Disclosure of geographical areas [line items]        
Goodwill 28 31   30
UNITED STATES        
Disclosure of geographical areas [line items]        
Goodwill $ 136 $ 136   $ 136
[1] Effective January 1, 2024, the Company changed its presentation currency from Canadian dollars to United States dollars. Refer to Note 4 “Changes in Accounting Policies” for further details.