Postretirement benefit plans

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Postretirement benefit plans

Postretirement benefit plans

Expenses related to defined benefit and retiree health care benefit plans are as follows:

	U.S. Defined Benefit				U.S. Retiree Health Care				Non-U.S. Defined Benefit
For Three Months Ended March 31,	2024		2023		2024		2023		2024		2023
Service cost	$	2	$	2	$	—	$	—	$	4	$	4
Interest cost	6		7		3		4		14		14
Expected return on plan assets	(6)		(6)		(3)		(5)		(19)		(15)
Recognized net actuarial losses (gains)	1		2		(1)		(1)		3		3
Net periodic benefit costs (credits)	$	3	$	5	$	(1)	$	(2)	$	2	$	6