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Revenue - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Percentage of proceeds from points sold 50.00%  
Revenue from business fee $ 25  
Percentage of increase in reimbursable revenue 100.00%  
Performance Guarantees [member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Maximum exposure to credit risk $ 77 $ 80