Benefit Obligations - Schedule of Net Periodic Benefit Costs Recognized (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 2	$ 10	$ 8
Interest cost	31	32	94	98
Expected return on plan assets	(34)	(32)	(102)	(98)
Total	0	2	2	8
Post-retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	0	1	0
Interest cost	0	1	1	2
Expected return on plan assets	0	0	0	0
Total	$ 1	$ 1	$ 2	$ 2