Pension and Other Postretirement Benefits - Schedule of Components of Net Periodic Pension and Other Postretirement Benefits Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1	$ 1	$ 3	$ 4
Net periodic cost	1	1	3	4
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	4	9	11
Interest cost	4	10	12	36
Expected return on plan assets	(3)	(13)	(10)	(43)
Recognized net loss	3	8	9	30
Settlement and curtailments	0	469	0	469
Net periodic cost	7	478	20	503
Non U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	2	6	6
Interest cost	3	4	9	13
Expected return on plan assets	(3)	(4)	(9)	(15)
Recognized net loss	0	0	0	3
Special termination benefits	0	0	0	2
Settlement and curtailments	0	48	(5)	48
Net periodic cost	$ 2	$ 50	$ 1	$ 57