Stockholders' Equity (Narrative) (Details) (USD $)	12 Months Ended						0 Months Ended	12 Months Ended			12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Aug. 24, 2011	May 27, 2009	Jun. 06, 2002	Nov. 15, 2012 Employee Stock Purchase Plan [Member]	Jun. 30, 2013 Employee Stock Purchase Plan [Member]	Jun. 30, 2012 Employee Stock Purchase Plan [Member]	Nov. 14, 2012 Employee Stock Purchase Plan [Member]	Jun. 30, 2013 Minimum [Member]	Jun. 30, 2013 Minimum [Member] Employee Stock Purchase Plan [Member]	Jun. 30, 2013 Maximum [Member]	Jun. 30, 2013 Maximum [Member] Employee Stock Purchase Plan [Member]
Stockholders' Equity [Line Items]
Shares authorized to be repurchased under repurchase program				20,000,000	10,000,000	6,600,000
Common shares repurchased	4,300,000	13,600,000
Cost of common shares repurchased	$ 188,000,000	$ 391,200,000
Additional shares that can be repurchased under the approved share repurchase program	4,500,000
Treasury stock, shares held	32,026,013	27,731,749
Treasury stock, at cost	1,083,845,000	895,826,000
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock at par value	$ 0.01	$ 0.01
Stock option and restricted stock units expiration period	7 years
Stock options and restricted stock units vesting period											1 year		4 years
Reduction in the number of shares of common stock available for issuance	3
Common stock authorized for issuance	35,500,000						4,200,000			2,200,000
Number of securities remaining available for future issuance	10,600,000							2,100,000
Maximum number of shares subject to awards granted	3,000,000
Number of common stock shares granted in participant's initial year of hiring	4,500,000
Stock issued under Employee Stock Purchase Plans								324,000	369,000
Unrecognized compensation costs related to unvested stock-based compensation arrangements	77,600,000
Expected weighted average period of unrecognized compensation costs related to unvested stock-based compensation arrangements	2 years 6 months
Aggregate intrinsic value of the stock-based compensation arrangements outstanding	260,600,000
Aggregate intrinsic value of the stock-based compensation arrangements exercisable	121,900,000
Aggregate intrinsic value of the options exercised	77,800,000	45,300,000	66,400,000
Number of additional shares authorized							2,000,000
Employee stock purchase program offering period												3 months		27 months
Percentage of purchase price of common stock lower than the fair market value of common stock on the date of grant								85.00%
Percentage of purchase price of common stock lower than the fair market value of common stock on the date of purchase								85.00%
Common stock shares subscribed														25,000
Cash dividend declared per share	$ 0.68
Dividend paid	97,204,000
Stock-based compensation expense	$ 38,157,000	$ 30,586,000	$ 30,809,000					$ 2,800,000	$ 2,800,000