v3.25.4
Financial Instruments - Summary of Offsetting of Financial Assets and Financial Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of offsetting of financial assets and financial liabilities [line items]    
Gross Financial Assets $ 41 $ 51
Gross Financial Liabilities Netted Against Assets 0 0
Net Financial Assets in the Consolidated Statement of Financial Position 41 51
Related Financial Liabilities Not Netted (7) 0
Net Amount, Financial Assets 34 51
Gross Financial Liabilities 16 21
Gross Financial Assets Netted Against Liabilities 0 0
Net Financial Liabilities in the Consolidated Statement of Financial Position 16 21
Related Financial Assets Not Netted (7) 0
Net Amount 9 21
Derivative Financial Liabilities [member]    
Disclosure of offsetting of financial assets and financial liabilities [line items]    
Gross Financial Liabilities 16 21
Gross Financial Assets Netted Against Liabilities 0 0
Net Financial Liabilities in the Consolidated Statement of Financial Position 16 21
Related Financial Assets Not Netted (7) 0
Net Amount 9 21
Cash and Cash Equivalent [member]    
Disclosure of offsetting of financial assets and financial liabilities [line items]    
Gross Financial Assets 34 51
Gross Financial Liabilities Netted Against Assets 0 0
Net Financial Assets in the Consolidated Statement of Financial Position 34 51
Related Financial Liabilities Not Netted 0 0
Net Amount, Financial Assets 34 $ 51
Cash collateral [Member]    
Disclosure of offsetting of financial assets and financial liabilities [line items]    
Gross Financial Assets 7  
Gross Financial Liabilities Netted Against Assets 0  
Net Financial Assets in the Consolidated Statement of Financial Position 7  
Related Financial Liabilities Not Netted (7)  
Net Amount, Financial Assets $ 0