Benefit Plans - Reconciliation of Benefit Obligations and Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Change in benefit obligation [Roll Forward]
Actuarial (gain) loss	$ 31	$ (557)
Pension Benefits
Change in benefit obligation [Roll Forward]
Benefit obligation, beginning balance	2,220	2,916
Service cost	2	2	$ 3
Interest cost	110	76	70
Plan participants’ contributions
Actuarial (gain) loss	31	(557)
Benefits paid from plan assets	(181)	(181)
Settlements	(194)	(23)
Foreign exchange	3	(13)
Benefit obligation, ending balance	1,991	2,220	2,916
Change in plan assets [Roll Forward]
Fair value of plan assets, beginning balance	2,212	2,816
Actual return on plan assets	206	(405)
Company contributions	22	19
Plan participants' contributions
Benefits paid from plan assets	(181)	(181)
Settlements	(188)	(23)
Foreign exchange	3	(14)
Fair value of plan assets, ending balance	2,074	2,212	2,816
Funded status	83	(8)
Other Postretirement Benefits
Change in benefit obligation [Roll Forward]
Benefit obligation, beginning balance	33	44
Service cost
Interest cost	2	1	1
Plan participants’ contributions	3	3
Actuarial (gain) loss	6	(6)
Benefits paid from plan assets	(10)	(9)
Settlements
Foreign exchange
Benefit obligation, ending balance	34	33	44
Change in plan assets [Roll Forward]
Fair value of plan assets, beginning balance	81	93
Actual return on plan assets	5	(9)
Company contributions	4	3
Plan participants' contributions	3	3
Benefits paid from plan assets	(10)	(9)
Settlements
Foreign exchange
Fair value of plan assets, ending balance	83	81	$ 93
Funded status	$ 49	$ 48