Postretirement benefit plans (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Expense Related to Defined Benefit and Retiree Health Care 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 September 30,	2023		2022		2023		2022		2023		2022
Service cost	$	2	$	4	$	—	$	1	$	4	$	6
Interest cost	7		8		4		3		14		7
Expected return on plan assets	(6)		(6)		(4)		(3)		(16)		(15)
Recognized net actuarial losses (gains)	2		1		(1)		—		3		1
Amortization of prior service cost (credit)	—		—		—		(1)		1		—
Net periodic benefit costs (credits)	5		7		(1)		—		6		(1)
Settlement losses	—		16		—		—		—		1
Total, including other postretirement losses (gains)	$	5	$	23	$	(1)	$	—	$	6	$	—
	U.S. Defined Benefit				U.S. Retiree Health Care				Non-U.S. Defined Benefit
For Nine Months Ended September 30,	2023		2022		2023		2022		2023		2022
Service cost	$	6	$	12	$	1	$	2	$	12	$	19
Interest cost	21		20		11		8		43		26
Expected return on plan assets	(17)		(22)		(13)		(9)		(48)		(50)
Recognized net actuarial losses (gains)	5		2		(4)		—		9		1
Amortization of prior service cost (credit)	—		—		—		(1)		1		—
Net periodic benefit costs (credits)	15		12		(5)		—		17		(4)
Settlement losses	1		29		—		—		1		10
Total, including other postretirement losses (gains)	$	16	$	41	$	(5)	$	—	$	18	$	6