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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Jun. 30, 2008
Unrecognized tax benefits $ 105.7 $ 107.2 $ 92.8 $ 404.2
Potential impact on earnings of tax settlements 10.0      
Workers' compensation, maximum exposure per claim 1      
Derivative financial instruments outstanding $ 0 $ 0 $ 0  
Data Processing Equipment [Member]
       
Estimated useful lives, minimum (years) 2      
Estimated useful lives, maximum (years) 5      
Buildings [Member]
       
Estimated useful lives, minimum (years) 20      
Estimated useful lives, maximum (years) 40      
Furniture And Fixtures [Member]
       
Estimated useful lives, minimum (years) 3      
Estimated useful lives, maximum (years) 7