Pensions and Other Postretirement Benefits

9 Months Ended

Jan. 31, 2014

Pensions and Other Postretirement Benefits [Abstract]

Pensions and Other Postretirement Benefits

Note 9: 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 January 31,
	Defined Benefit Pension Plans				Other Postretirement Benefits
	2014		2013		2014		2013
Service cost	$	2.2	$	2.2	$	0.6	$	0.6
Interest cost		5.4		6.0		0.6		0.8
Expected return on plan assets		(6.3)		(6.4)		—		—
Recognized net actuarial loss		3.3		3.3		—		—
Other		0.3		0.3		(0.3)		(0.1)
Net periodic benefit cost	$	4.9	$	5.4	$	0.9	$	1.3
	Nine Months Ended January 31,
	Defined Benefit Pension Plans				Other Postretirement Benefits
	2014		2013		2014		2013
Service cost	$	6.6	$	6.8	$	1.7	$	1.8
Interest cost		16.4		18.0		1.7		2.3
Expected return on plan assets		(19.1)		(19.0)		—		—
Recognized net actuarial loss		9.9		9.9		—		—
Settlement loss		—		6.7		—		—
Other		0.9		0.8		(0.8)		(0.2)
Net periodic benefit cost	$	14.7	$	23.2	$	2.6	$	3.9