Pension Benefits (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost associated with our U.S. pension plans are as follows:

	Quarter ended				Year to date
	2021		2020		2021		2020
Service cost	$	2	$	2	$	6	$	6
Interest cost	8		9		24		26
Expected return on plan assets	(11)		(10)		(32)		(32)
Amortization of net loss	3		4		12		11
Amortization of prior service cost	1		—		4		3
Net periodic benefit cost	$	3	$	5	$	14	$	14