v3.25.4
Post-Employment and Other Long-Term Employees Benefits - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Pension plans with accumulated benefit obligations in excess of plan assets, accumulated benefit obligation $ 570 $ 494  
Pension plans with accumulated benefit obligations in excess of plan assets, fair value of plan assets 203 175  
Pension plans with expected projected benefit obligations in excess of plan assets, projected benefit obligation 516 492  
Pension and other postretirement benefits cost (reversal of cost) 19 15 $ 19
Accrued benefits related to defined contribution pension plans 30 25  
Annual cost of defined contribution plans 119 117 $ 114
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Pension plans with benefit obligations in excess of plan assets, benefit obligation 1,050 967  
Employer contributions 21 $ 25  
Expected contribution in cash $ 31