Stock-based Employee Compensation (Schedule Of Total Stock-Based Compensation Costs Incurred And Associated Tax Benefit Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation costs	$ 52,073	$ 48,412	$ 45,925
Tax benefit	(26,658)	(17,078)	(20,100)
Stock-based compensation costs, net of tax benefit	25,415	31,334	25,825
Cost of Sales - Capitalized As Part Of Inventory [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation costs	3,043	2,990	2,877
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation costs	42,700	39,754	37,096
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation costs	$ 6,330	$ 5,668	$ 5,952