Postretirement benefit plans (Tables)

6 Months Ended

Jun. 30, 2022

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 June 30,	2022		2021		2022		2021		2022		2021
Service cost	$	4	$	6	$	—	$	1	$	6	$	9
Interest cost	6		7		2		2		9		10
Expected return on plan assets	(8)		(9)		(2)		(3)		(17)		(21)
Recognized net actuarial loss	1		4		—		—		—		2
Net periodic benefit costs	3		8		—		—		(2)		—
Settlement losses	11		4		—		—		8		—
Total, including other postretirement losses	$	14	$	12	$	—	$	—	$	6	$	—
	U.S. Defined Benefit				U.S. Retiree Health Care				Non-U.S. Defined Benefit
For Six Months Ended June 30,	2022		2021		2022		2021		2022		2021
Service cost	$	8	$	11	$	1	$	2	$	13	$	18
Interest cost	12		15		5		5		19		19
Expected return on plan assets	(16)		(17)		(6)		(6)		(35)		(41)
Recognized net actuarial loss	1		8		—		—		—		4
Net periodic benefit costs	5		17		—		1		(3)		—
Settlement losses	13		8		—		—		9		1
Total, including other postretirement losses	$	18	$	25	$	—	$	1	$	6	$	1