Goodwill And Intangible Assets, Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Accumulated amortization	$ 81.3	$ 59.5
Weighted-average remaining useful life of the intangible assets, in years	6.8
Amortization of intangibles	21.8	9.0	5.6
Software And Software Licenses [Member]
Accumulated amortization	59.3	46.2
Weighted-average remaining useful life of the intangible assets, in years	4.7
Customer Lists [Member]
Accumulated amortization	19.5	12.6
Weighted-average remaining useful life of the intangible assets, in years	7.9
Other Intangible Assets [Member]
Accumulated amortization	2.5	0.7
Weighted-average remaining useful life of the intangible assets, in years	6.2
Discontinued Operations [Member]
Customer relationship intangible asset original cost		22.0
Discontinued Operations [Member]
Accumulated amortization		11.1
Clearing And Outsourcing Solutions [Member]
Goodwill written off related to sale of securities clearing contracts		$ 29.3