Pension and Other Post-Retirement Benefits

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Pension and Other Post-Retirement Benefits

Pension and Other Post-Retirement Benefits

The following table shows the components of our pension and other post-retirement net periodic cost for the three months ended September 30, 2020 and 2019 (in millions):

	2020 Pension Benefits		2019 Pension Benefits		2020 Retiree Health and Life		2019 Retiree Health and Life
Service cost	$	2.0	$	1.7	$	—	$	—
Interest cost	3.1		3.8		0.1		0.2
Expected return on plan assets	(5.0)		(5.6)		—		—
Amortization of (1):
Unrecognized prior service credit	—		—		—		—
Unrecognized net actuarial loss (gain)	3.1		2.0		(0.1)		—
Net periodic cost	$	3.2	$	1.9	$	—	$	0.2

The following table shows the components of our pension and other post-retirement benefits expense for the nine months ended September 30, 2020 and 2019 (in millions):

	2020 Pension Benefits		2019 Pension Benefits		2020 Retiree Health and Life		2019 Retiree Health and Life
Service cost	$	6.0	$	4.9	$	0.1	$	0.1
Interest cost	9.2		11.4		0.4		0.7
Expected return on plan assets	(15.1)		(16.6)		—		—
Amortization of (1):
Unrecognized prior service credit	—		—		(0.1)		(0.1)
Unrecognized net actuarial loss (gain)	9.5		6.0		(0.3)		(0.1)
Net periodic cost	$	9.6	$	5.7	$	0.1	$	0.6

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(1) Amounts reclassified from accumulated other comprehensive loss.

The service cost component of net periodic cost is recorded in selling, general and administrative expense in the statements of comprehensive income, and the non-service components are recorded in other expense.