Quarterly report pursuant to Section 13 or 15(d)

Stock Option Activity (Detail)

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Stock Option Activity (Detail) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 9 Months Ended
Mar. 31, 2012
Year
Shares  
Outstanding at June 30, 2011 499
Granted 95
Exercised (13)
Outstanding at March 31, 2012 581
Exercisable at March 31, 2012 342
Weighted Average Exercise Price  
Outstanding at June 30, 2011 $ 64.15
Granted $ 71.94
Exercised $ 50.82
Outstanding at March 31, 2012 $ 65.73
Exercisable at March 31, 2012 $ 60.73
Weighted Average Contractual Life (Yrs.)  
Outstanding at March 31, 2012 6.0
Exercisable at March 31, 2012 6.0
Aggregate Intrinsic Value  
Outstanding at March 31, 2012 $ 3.4
Exercisable at March 31, 2012 $ 3.3