Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Employee Benefit Plans [Abstract]
Service cost - benefits earned during the period	$ 57.2	$ 52.5	$ 47.6
Interest cost on projected benefits	62.1	56.6	59.1
Expected return on plan assets	(97.6)	(88.5)	(76.5)
Amortization of losses	15.0	20.1	4.5
Net pension expense	$ 36.7	$ 40.7	$ 34.7