v3.26.1
Long-term Employee Benefits - Schedule of Net Periodic Pension Cost and Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Defined Benefit Plan Disclosure [Line Items]        
Total net periodic pension cost     $ 1  
Amortization of actuarial loss   $ 1   $ 2
Amortization of prior service gain       (1)
Effect of foreign exchange rates   (6) 1 (8)
Benefit (cost) recognized in other comprehensive income   (5) 1 (7)
Pension Plan [Member] | Foreign [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ (2) (2) (4) (4)
Interest cost (3) (3) (7) (6)
Expected return on plan assets 6 6 12 11
Amortization of actuarial loss   (1)   (2)
Amortization of prior service gain       1
Total net periodic pension cost 1   1  
Amortization of actuarial loss   1   2
Amortization of prior service gain       (1)
Effect of foreign exchange rates 0 (6) 1 (8)
Benefit (cost) recognized in other comprehensive income 0 (5) 1 (7)
Total changes in plan assets and benefit obligations recognized in other comprehensive income $ 1 $ (5) $ 2 $ (7)