Share-Based Compensation (Summary Of Stock Option Activity) (Detail) (USD $)	6 Months Ended
	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at June 30, 2012, Shares	2,410,718
Granted, Shares	486,784
Exercised, Shares	(418,870)
Forfeited or expired, Shares	(83,772)
Outstanding at December 31, 2012, Shares	2,394,860
Exercisable at December 31, 2012, Shares	1,387,244
Outstanding at June 30, 2012, Weighted Average Exercise Price Per Share	$ 54.71
Granted, Weighted Average Exercise Price Per Share	$ 47.37
Exercised, Weighted Average Exercise Price Per Share	$ 32.67
Forfeited or expired, Weighted Average Exercise Price Per Share	$ 63.73
Outstanding at December 31, 2012, Weighted Average Exercise Price Per Share	$ 56.76
Exercisable at December 31, 2012, Weighted Average Exercise Price Per Share	$ 67.94
Outstanding at June 30, 2012, Weighted Average Remaining Contractual Term (Years)	6 years 5 months 1 day
Outstanding at December 31, 2012, Weighted Average Remaining Contractual Term (Years)	6 years 7 months 28 days
Exercisable at December 31, 2012, Weighted Average Remaining Contractual Term (Years)	4 years 11 months 27 days
Outstanding at June 30, 2012, Average Intrinsic Value	$ 9,359,000
Outstanding at December 31, 2012, Average Intrinsic Value	10,440
Exercisable at December 31, 2012, Average Intrinsic Value	$ 5,673,000