Employee Retirement Plans

3 Months Ended

Mar. 31, 2019

The following table summarizes the components of our net retirement cost:



	Three Months Ended March 31,
	2019			2018
	(in millions)
Expense Components
Service cost	$	—		$	—
Interest	4.9			4.5
Expected return on plan assets	(5.7		)	(6.8		)
Amortization of actuarial loss	1.1			1.2
Net periodic benefit cost	0.3			(1.1		)
Profit sharing	2.2			2.5
Net expense	$	2.5		$	1.4

We contributed $0.2 million and $0.7 million to our defined benefit pension plans for the three months ended March 31, 2019 and 2018, respectively. Total contributions to our defined benefit pension plans in 2019 are expected to be approximately $1.1 million. The non-service cost components of net periodic benefit cost shown in the table above are included in the Other, net line in our Consolidated Statements of Operations.