Share-Based Compensation (Summary Of All Stock Option Transactions) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Mar. 31, 2012 Y
Share-Based Compensation [Abstract]
Stock Options, Balance at June 30, 2011	23.1
Stock Options, Granted	2.3
Stock Options, Exercised	(1.4)
Stock Options, Canceled and forfeited	(1.7)
Stock Options, Balance at March 31, 2012	22.3
Stock Options Outstanding, Exercisable at March 31, 2012	15.8
Weighted Average Exercise Price per Common Share, Balance at June 30, 2011	$ 37.02
Weighted Average Exercise Price per Common Share, Granted	$ 45.63
Weighted Average Exercise Price per Common Share, Exercised	$ 30.85
Weighted Average Exercise Price per Common Share, Canceled and forfeited	$ 47.33
Weighted Average Exercise Price per Common Share, Balance at March 31, 2012	$ 37.52
Weighted Average Exercise Price per Common Share, Exercisable at March 31, 2012	$ 38.46
Weighted Average Remaining Contractual Life in Years, Balance at June 30, 2011	3.6
Weighted Average Remaining Contractual Life in Years, Balance at March 31, 2012	3.7
Weighted Average Remaining Contractual Life in Years, Exercisable at March 31, 2012	2.5
Aggregate Intrinsic Value, Balance at June 30, 2011	$ 217.0
Aggregate Intrinsic Value, Balance at March 31, 2012	163.2
Aggregate Intrinsic Value, Exercisable at March 31, 2012	$ 102.9