Pension and Other Post-Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2026

Retirement Benefits [Abstract]

Components of pension and other post retirement benefit costs

The following table shows the components of net periodic cost for the three months ended March 31, 2026 and 2025 (in millions):

	2026 Pension Benefits		2025 Pension Benefits		2026 Retiree Health and Life		2025 Retiree Health and Life
Service cost	$	1.5	$	1.4	$	—	$	—
Interest cost	3.9		4.2		0.1		0.2
Expected return on plan assets	(5.1)		(5.5)		—		—
Amortization of (1):
Unrecognized net actuarial loss (gain)	0.3		0.2		(0.1)		(0.2)
Net periodic cost	$	0.6	$	0.3	$	—	$	—

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(1)    Amounts reclassified from accumulated other comprehensive loss.