Employee Benefit Plans (Components Of Net Pension Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Service cost - benefits earned during the period	$ 80.8	$ 70.4	$ 68.4
Interest cost on projected benefits	60.0	67.4	62.8
Expected return on plan assets	(135.8)	(131.2)	(129.7)
Net amortization and deferral	19.1	11.0	17.2
Defined Benefit Plan, Curtailments	0.1	0.1	3.2
Net pension expense	$ 24.2	$ 17.7	$ 21.9