v3.26.1
Post-retirement Benefit Plans - Summary of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Net periodic benefit cost:        
Net periodic benefit cost $ 4 $ 4 $ 7 $ 8
Domestic defined benefit pension plans        
Net periodic benefit cost:        
Service cost 1 0 1 1
Interest cost 1 1 2 2
Expected return on plan assets (1) (2) (2) (3)
Amortization of net actuarial loss 0 1 1 1
Net periodic benefit cost 1 0 2 1
International defined benefit pension plans        
Net periodic benefit cost:        
Service cost 3 3 5 5
Interest cost 4 4 9 8
Expected return on plan assets (4) (3) (7) (6)
Amortization of net actuarial loss 0 0 (2) 0
Net periodic benefit cost $ 3 $ 4 $ 5 $ 7