Stock Option Activity (Detail) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Shares
Beginning Balance	728	575	499
Granted	251	175	95
Forfeited	(26)		(2)
Exercised	(142)	(22)	(17)
Ending Balance	811	728	575
Exercisable at June 30	534	497	403
Weighted Average Exercise Price
Beginning Balance	$ 66.70	$ 65.78	$ 64.15
Granted	$ 80.88	$ 67.80	$ 71.94
Forfeited	$ 76.23		$ 76.15
Exercised	$ 59.07	$ 51.17	$ 50.98
Ending Balance	$ 72.11	$ 66.70	$ 65.78
Exercisable at June 30	$ 69.49	$ 65.04	$ 62.67
Weighted Avg. Contractual Life (Yrs.)
Outstanding at June 30, 2014	5 years 4 months 24 days
Exercisable at June 30, 2014	5 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding at June 30, 2014	$ 16.6
Exercisable at June 30, 2014	$ 12.3