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Income Tax - Summary of Deferred Tax Assets and Liabilities (Parenthetical) (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Jan. 01, 2023
Dec. 31, 2022
Text Block 1 [Abstract]        
Deferred tax liability (asset) $ 24 $ 44 $ 49 $ 49
Deferred tax liabilities 48 65 65 [1]  
Deferred tax assets $ 24 $ 21 $ 16 [1]  
[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.