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Employee Benefit Plans - Schedule of Defined Benefit Plan Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan assets, amount $ 32 $ 34 $ 31
Defined benefit plan assets, percentage 100.00% 100.00%  
Debt Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan assets, amount $ 17 $ 18  
Defined benefit plan assets, percentage 54.00% 54.00%  
Equity Securities [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan assets, amount $ 8 $ 9  
Defined benefit plan assets, percentage 25.00% 24.00%  
Cash [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan assets, amount $ 3 $ 3  
Defined benefit plan assets, percentage 10.00% 10.00%  
Other [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plan assets, amount $ 4 $ 4  
Defined benefit plan assets, percentage 11.00% 12.00%