v3.25.4
Employee Benefit Plans - Net Defined Benefit Plan Obligations (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of net defined benefit liability (asset) [Line Items]    
Beginning of period $ (483) $ (490)
Plan expense recognized in income statement:    
 Plan (expense) benefit recognized in income statement (55) (36)
Actuarial gains (losses) 83 5
Exchange differences (1) 3
Contributions paid 35 35
End of period (421) (483)
Net plan surpluses recognized in non-current assets 83 40
Net plan obligations recognized in non-current liabilities (504) (523)
Defined Benefit Plan [Member]    
Disclosure of net defined benefit liability (asset) [Line Items]    
Beginning of period (423) (418)
Plan expense recognized in income statement:    
 Plan (expense) benefit recognized in income statement (45) (44)
Actuarial gains (losses) 77 11
Exchange differences 0 0
Contributions paid 29 28
End of period (362) (423)
Other Post Employment Benefits [Member]    
Disclosure of net defined benefit liability (asset) [Line Items]    
Beginning of period (60) (72)
Plan expense recognized in income statement:    
 Plan (expense) benefit recognized in income statement (10) 8
Actuarial gains (losses) 6 (6)
Exchange differences (1) 3
Contributions paid 6 7
End of period $ (59) $ (60)