Income Taxes (Components of Deferred Income Tax Assets and Liabilities) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Income Tax Disclosure [Abstract]
Accrued expenses not currently deductible	$ 248,000,000	$ 223,400,000
Stock-based compensation expense	87,300,000	84,100,000
Net operating losses	79,700,000	97,600,000
Other	36,400,000	39,500,000
Deferred Tax Assets, Gross	451,400,000	444,600,000
Valuation Allowance	(44,043,000)	(48,792,000)	(54,127,000)	(62,084,000)
Deferred Tax Assets, Net of Valuation Allowance	407,400,000	395,800,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	183,700,000	146,200,000
Deferred Revenue	71,900,000	62,900,000
Fixed and intangible assets	203,100,000	235,300,000
Prepaid expenses	100,700,000	88,900,000
Unrealized investment gains, net	112,300,000	99,800,000
Tax on unrepatriated earnings	14,100,000	12,300,000
Other	1,900,000	7,300,000
Deferred Tax Liabilities	687,700,000	652,700,000
Deferred Tax Liabilities, Net	$ 280,300,000	$ 256,900,000