Pension and Other Postretirement Benefits

9 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits

The components of the net periodic benefit cost related to the Company’s pension and other postretirement benefits for the three and nine months ended March 31, 2016 and 2015 were as follows:



Three months ended March 31,	Pension Plans						Other Postretirement Plans
($ in millions)	2016			2015			2016			2015
Service cost	$	7.8		$	8.0		$	0.8		$	1.1
Interest cost	14.4			13.5			2.5			3.0
Expected return on plan assets	(16.4		)	(17.2		)	(1.7		)	(1.7		)
Amortization of net loss	6.8			4.2			0.7			0.5
Amortization of prior service cost (benefit)	0.1			0.1			(1.6		)	—
Net periodic benefit costs	$	12.7		$	8.6		$	0.7		$	2.9



Nine months ended March 31,	Pension Plans						Other Postretirement Plans
($ in millions)	2016			2015			2016			2015
Service cost	$	23.4		$	24.0		$	2.5		$	3.3
Interest cost	43.2			40.5			7.7			9.0
Expected return on plan assets	(49.3		)	(51.6		)	(5.2		)	(5.0		)
Amortization of net loss	20.5			12.6			2.0			1.5
Amortization of prior service cost (benefit)	0.3			0.3			(4.8		)	—
Net periodic benefit costs	$	38.1		$	25.8		$	2.2		$	8.8

During the nine months ended March 31, 2016 and 2015, the Company made $0 million and $5.5 million, respectively, of contributions to its qualified defined benefit pension plans. The Company currently expects to make no contributions to its qualified defined benefit pension plans during the remainder of fiscal year 2016.