Pensions and Other Postretirement Benefits

3 Months Ended

Jul. 31, 2022

Retirement Benefits [Abstract]

Pensions and Other Postretirement Benefits

The components of our net periodic benefit cost for defined benefit pension and other postretirement benefit plans are shown below.

	Three Months Ended July 31,
	Defined Benefit Pension Plans				Other Postretirement Benefits
	2022		2021		2022		2021
Service cost	$	0.3	$	0.4	$	0.2	$	0.3
Interest cost	4.4		3.2		0.6		0.4
Expected return on plan assets	(4.0)		(4.1)		—		—
Amortization of net actuarial loss (gain)	1.0		1.7		(0.3)		(0.1)
Amortization of prior service cost (credit)	0.1		0.2		(0.1)		(0.2)
Settlement loss (gain)	—		3.7		—		—
Net periodic benefit cost	$	1.8	$	5.1	$	0.4	$	0.4

During the first quarter of 2023, we made contributions of $70.0 to increase funding for our U.S. qualified defined benefit pension plans and direct benefit payments of $0.7.