Postretirement benefit plans

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Postretirement benefit plans

Postretirement benefit plans

Expense related to defined benefit and retiree health care benefit plans is as follows:

	U.S. Defined Benefit				U.S. Retiree Health Care				Non-U.S. Defined Benefit
For Three Months Ended March 31,	2021		2020		2021		2020		2021		2020
Service cost	$	5	$	4	$	1	$	1	$	9	$	8
Interest cost	8		9		3		3		9		9
Expected return on plan assets	(8)		(9)		(3)		(3)		(20)		(18)
Recognized net actuarial loss	4		2		—		—		2		3
Net periodic benefit costs	9		6		1		1		—		2
Settlement losses	4		4		—		—		1		1
Total, including other postretirement losses	$	13	$	10	$	1	$	1	$	1	$	3