v3.25.4
Taxation - Additional Information (Detail) - USD ($)
 12 Months Ended
Jul. 04, 2025
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Income Taxes [Line Items]      
Income taxes rate   26.50% 26.50%
Income before tax   $ 1,906,000,000 $ 2,069,000,000
Tax expense (benefit)   $ 423,000,000 (123,000,000)
Effective income tax expense (benefit) rate   22.20%  
Percentage of increase in effective tax rate   1.00%  
Current tax expense   $ 363,000,000 517,000,000
Sensitivity to change in effective tax rate   19,000,000  
Deferred tax benefit   60,000,000 (640,000,000)
One Big Beautiful Bill Act      
Disclosure Of Income Taxes [Line Items]      
Income taxes rate 21.00%    
Organization For Economic Cooperation And Development [Member]      
Disclosure Of Income Taxes [Line Items]      
Tax expense (benefit)   0 $ 0
Minimum tax rate percentage as per top up taxes     15.00%
Transfer of Certain Technology Assets      
Disclosure Of Income Taxes [Line Items]      
Current tax expense   72,000,000  
Elite [Member]      
Disclosure Of Income Taxes [Line Items]      
Current tax expense   $ 40,000,000  
Law Business [Member]      
Disclosure Of Income Taxes [Line Items]      
Current tax expense     $ 54,000,000
Prior Period Tax [Member]      
Disclosure Of Income Taxes [Line Items]      
Deferred tax expense income relating to rate changes or imposition of new taxes     (468,000,000)
Tax Legislation [Member] | CANADA      
Disclosure Of Income Taxes [Line Items]      
Deferred tax expense income relating to rate changes or imposition of new taxes     $ (468,000,000)