Retirement and Other Employee Benefits

3 Months Ended

Mar. 29, 2019

Retirement Benefits [Abstract]

Retirement and Other Employee Benefits

Retirement and Other Employee Benefits

The following table sets forth the net periodic benefit costs of our defined benefit pension plans and post-retirement benefit plans (U.S. dollars in millions):

	Quarter ended
	March 29, 2019			March 30, 2018
Service cost	$	1.4		$	1.5
Interest cost	1.7			1.6
Expected return on assets	(0.8		)	(0.9		)
Amortization of net actuarial loss	0.1			0.2
Net periodic benefit costs	$	2.4		$	2.4

We provide certain other retirement benefits to certain employees who are not U.S.-based and are not included above. Generally, benefits under these programs are based on an employee’s length of service and level of compensation. These programs are immaterial to our consolidated financial statements. The net periodic benefit costs related to other non-U.S.-based plans is $0.8 million for the quarter ended March 29, 2019 and $0.7 million for the quarter ended March 30, 2018.