Contractual Commitments, Contingencies And Off-Balance Sheet Arrangements (Narrative) (Details) (USD $) In Millions	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Expenses recorded related to agreement	$ 28.8	$ 27.2
Expected contract extension costs maximum	10
Cost of IBM data center capitalized	14.4
IT Services Agreement [Member]
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Expiration date on agreement	June 30, 2022
Commitments under agreement	563.9
Expenses recorded related to IT services	$ 3.2
Automatic Data Processing [Member]
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]
Expiration date on agreement	June 30, 2012