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Other Assets and Liabilities - Additional Information (Detail) - Credit risk [member]
$ in Millions
 12 Months Ended
Dec. 31, 2024
USD ($)
customer
Dec. 31, 2023
USD ($)
customer
Trade receivables [member]    
Disclosure of credit risk exposure [line items]    
Number of customers | customer 23 19
Outstanding customer credit exposure $ 10  
Maximum exposure to credit risk, percentage 88.00% 82.00%
Provision for credit losses $ 0 $ 0
Trade receivables 10  
Trade receivables [member] | Subsequent Period [Member]    
Disclosure of credit risk exposure [line items]    
Outstanding customer credit exposure $ 972 $ 885
Percentage of trade receivables 96.00% 97.00%
Trade receivables $ 972 $ 885
Debtor [Member]    
Disclosure of credit risk exposure [line items]    
Credit exposure period 30 days  
Other Financial Assets [Member]    
Disclosure of credit risk exposure [line items]    
Credit exposure period 60 days  
Bottom of range [member] | Trade receivables [member]    
Disclosure of credit risk exposure [line items]    
Credit exposure period 7 days  
Top of range [member] | Trade receivables [member]    
Disclosure of credit risk exposure [line items]    
Credit exposure period 30 days