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Stock Based Compensation (Details 2) (Restricted Stock Units (RSUs) [Member], USD $)
In Millions, except Per Share data
3 Months Ended
Sep. 30, 2011
Restricted Stock Units (RSUs) [Member]
 
Restricted Stock Unit 
Numbers of Shares, Beginning Balance3.1
Weighted Average Grant Date Fair Value Per Share, Beginning Balance$ 28.85
Restricted stock, Number of share granted0.9
Restricted stock, Granted weighted average grant date fair value per share$ 29.64
Restricted stock, Number of share exercised(0.6)
Restricted stock, Exercised weighted average grant date fair value per share$ 23.94
Restricted stock, Number of share canceled or expired 
Restricted stock, Canceled or expired weighted average grant date fair value per share 
Numbers of Shares, Ending Balance3.4
Weighted Average Grant Date Fair Value Per Share, Ending Balance$ 29.83
Number of share, Expected to vest after September 30, 20113.3
Weighted Average Grant Date Fair Value Per Share, Expected to vest after September 30, 2011$ 29.90