Postretirement benefit plans

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Postretirement benefit plans

Postretirement benefit plansExpenses 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,	2021		2020		2021		2020		2021		2020
Service cost	$	5	$	5	$	—	$	1	$	9	$	9
Interest cost	8		7		3		3		9		9
Expected return on plan assets	(8)		(9)		(2)		(2)		(20)		(20)
Recognized net actuarial loss	3		1		—		—		2		4
Amortization of prior service cost (credit)	—		—		(1)		(1)		—		—
Net periodic benefit costs	8		4		—		1		—		2
Settlement losses	4		3		—		—		1		1
Total, including other postretirement losses	$	12	$	7	$	—	$	1	$	1	$	3
	U.S. Defined Benefit				U.S. Retiree Health Care				Non-U.S. Defined Benefit
For Nine Months Ended September 30,	2021		2020		2021		2020		2021		2020
Service cost	$	16	$	14	$	2	$	2	$	27	$	25
Interest cost	23		24		8		9		28		28
Expected return on plan assets	(25)		(27)		(8)		(8)		(61)		(58)
Recognized net actuarial loss	11		5		—		—		6		11
Amortization of prior service cost (credit)	—		—		(1)		(1)		—		—
Net periodic benefit costs	25		16		1		2		—		6
Settlement losses	12		10		—		—		2		2
Total, including other postretirement losses	$	37	$	26	$	1	$	2	$	2	$	8