Pension and Other Postretirement Benefits - Postretirement Funded Status (Details) - Postemployment Retirement Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Benefit obligation
Balance at the beginning of the period	$ 58	$ 65
Service cost	1	1	$ 1
Interest cost	4	3	2
Amendments	2	0
Actuarial loss (gain)	1	(7)
Benefits paid	(4)	(4)
Foreign currency translation	2	0
Balance at the end of the period	64	58	$ 65
Fair value of plan assets	0	0
Funded status	$ (64)	$ (58)