v3.25.4
Leases - Summary of Carrying Amount and Related Depreciation (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about property, plant and equipment [line items]    
Carrying amount $ 190 $ 191
Depreciation 61 54
Computer Equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Carrying amount 22 24
Depreciation 16 14
Land, buildings and building improvements [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Carrying amount 164 163
Depreciation 44 39
Furniture, fixtures and other equipment [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Carrying amount 4 4
Depreciation $ 1 $ 1