Employee Benefit Plans (Tables)

6 Months Ended

Dec. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Components Of Stock-Based Compensation Expense

The following table represents stock-based compensation expense for the three and six months endedDecember 31, 2017 and 2016, respectively:

	Three Months Ended				Six Months Ended
	December 31,				December 31,
	2017		2016		2017		2016
Operating expenses	$	5.4	$	6.3	$	10.6	$	11.8
Selling, general and administrative expenses	27.5		24.3		56.1		45.9
System development and programming costs	5.8		5.2		11.0		9.2
Total stock-based compensation expense	$	38.7	$	35.8	$	77.7	$	66.9

Schedule of Net Benefit Costs

The components of net pension expense were as follows:

	Three Months Ended						Six Months Ended
	December 31,						December 31,
	2017			2016			2017			2016
Service cost – benefits earned during the period	$	18.6		$	20.2		$	37.3		$	40.4
Interest cost on projected benefits	16.3			14.9			32.6			30.0
Expected return on plan assets	(34.3		)	(33.9		)	(68.6		)	(67.9		)
Net amortization and deferral	2.1			4.8			4.2			9.6
Net pension expense	$	2.7		$	6.0		$	5.5		$	12.1