Pension Plans

Snap-on’s net periodic pension cost included the following components:



	Three Months Ended
(Amounts in millions)	March 31, 2018			April 1, 2017
Service cost	$	6.5		$	5.9
Interest cost	13.2			14.0
Expected return on plan assets	(21.7		)	(20.1		)
Amortization of unrecognized loss	8.0			6.9
Amortization of prior service credit	(0.3		)	(0.3		)
Net periodic pension cost	$	5.7		$	6.4

The components of net periodic pension cost, other than the service cost component, are included in "Other income (expense) - net" on the accompanying Condensed Consolidated Statements of Earnings. See Note 15 for additional information on other income (expense) - net.

Snap-on intends to make contributions of $9.7 million to its foreign pension plans and $2.4 million to its domestic pension plans in 2018, as required by law. In the first three months of 2018, Snap-on made $10.3 million of cash contributions to its domestic pension plans consisting of (i) $10.0 million of discretionary contributions and (ii) $0.3 million of required contributions. Depending on market and other conditions, Snap-on may make additional discretionary cash contributions to its pension plans in 2018.