Employee Benefit Plans (Components Of Net Pension Expense) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Service cost – benefits earned during the period	$ 20.2	$ 17.6	$ 40.4	$ 35.2
Interest cost on projected benefits	14.9	16.9	30.0	33.8
Expected return on plan assets	(33.9)	(32.8)	(67.9)	(65.7)
Net amortization and deferral	4.8	2.7	9.6	5.5
Net pension expense	$ 6.0	$ 4.4	$ 12.1	$ 8.8