Pension and Other Postretirement Benefits - Components of net periodic benefit cost (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
U.S. Plans
Benefit plans
Service cost	$ 1	$ 0
Interest cost	3	4
Expected return on plan assets	(4)	(4)
Net periodic cost	0	0
Cash contribution expected during fiscal year	1
Non-U.S. Plans
Benefit plans
Service cost	1	1
Interest cost	2	2
Expected return on plan assets	(2)	(2)
Net periodic cost	1	$ 1
Cash contribution expected during fiscal year	4
Cash contributions	$ 1