Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) (USD $) In Millions	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Employee Benefit Plans
Service cost - benefits earned during the period	$ 52.5	$ 47.6	$ 46.2
Interest cost on projected benefits	56.6	59.1	56.7
Expected return on plan assets	(88.5)	(76.5)	(70.3)
Amortization of losses	(20.1)	(4.5)	(1.2)
Net pension expense	$ 40.7	$ 34.7	$ 33.8