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Share Capital, Option Plans And Share-Based Payments (Summary Of Stock Options Outstanding) (Details) (USD $)
 12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Number of options outstanding (in shares) 1,805,391.000 2,147,151 2,277,733
Weighted Average Remaining Contractual Life (years) 4 years 11 months 16 days 4 years 4 months 2 days  
Weighted average exercise price, options outstanding (in dollars per share) $ 49.44 $ 40.07 $ 24.51
Number of Options Exercisable as of June 30, 2013 672,846 960,151  
Weighted average exercise price, options exercisable (in dollars per share) $ 39.97 $ 25.92  
$17.41-$34.50
      
Range of Exercise Prices, Lower Limit $ 17.41    
Range of Exercise Prices, Upper Limit $ 34.50    
Number of options outstanding (in shares) 347,921,000    
Weighted Average Remaining Contractual Life (years) 1 year 11 months 23 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 29.67    
Number of Options Exercisable as of June 30, 2013 347,921,000    
Weighted average exercise price, options exercisable (in dollars per share) $ 29.67    
$37.22-$46.70
      
Range of Exercise Prices, Lower Limit $ 37.22    
Range of Exercise Prices, Upper Limit $ 46.70    
Number of options outstanding (in shares) 296,800,000    
Weighted Average Remaining Contractual Life (years) 5 years 0 months 11 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 44.63    
Number of Options Exercisable as of June 30, 2013 120,550,000    
Weighted average exercise price, options exercisable (in dollars per share) $ 43.90    
$48.39-$52.44
      
Range of Exercise Prices, Lower Limit $ 48.39    
Range of Exercise Prices, Upper Limit $ 52.44    
Number of options outstanding (in shares) 323,125,000    
Weighted Average Remaining Contractual Life (years) 5 years 5 months 16 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 51.99    
Number of Options Exercisable as of June 30, 2013 116,875,000    
Weighted average exercise price, options exercisable (in dollars per share) $ 51.31    
$52.74-$58.20
      
Range of Exercise Prices, Lower Limit $ 52.74    
Range of Exercise Prices, Upper Limit $ 58.20    
Number of options outstanding (in shares) 277,545,000    
Weighted Average Remaining Contractual Life (years) 6 years 3 months 4 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 53.85    
Number of Options Exercisable as of June 30, 2013 0    
Weighted average exercise price, options exercisable (in dollars per share) $ 0.00    
$59.27-$59.27
      
Range of Exercise Prices, Lower Limit $ 59.27    
Range of Exercise Prices, Upper Limit $ 59.27    
Number of options outstanding (in shares) 67,500,000    
Weighted Average Remaining Contractual Life (years) 6 years 6 months 29 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 59.27    
Number of Options Exercisable as of June 30, 2013 0    
Weighted average exercise price, options exercisable (in dollars per share) $ 0.00    
$60.35-$60.35
      
Range of Exercise Prices, Lower Limit $ 60.35    
Range of Exercise Prices, Upper Limit $ 60.35    
Number of options outstanding (in shares) 420,000,000    
Weighted Average Remaining Contractual Life (years) 5 years 7 months 6 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 60.35    
Number of Options Exercisable as of June 30, 2013 85,000,000    
Weighted average exercise price, options exercisable (in dollars per share) $ 60.35    
$61.63-$63.51
      
Range of Exercise Prices, Lower Limit $ 61.63    
Range of Exercise Prices, Upper Limit $ 63.51    
Number of options outstanding (in shares) 72,500,000    
Weighted Average Remaining Contractual Life (years) 6 years 7 months 2 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 63.45    
Number of Options Exercisable as of June 30, 2013 2,500,000    
Weighted average exercise price, options exercisable (in dollars per share) $ 61.63    
$17.41-$63.51
      
Range of Exercise Prices, Lower Limit $ 17.41    
Range of Exercise Prices, Upper Limit $ 63.51    
Number of options outstanding (in shares) 1,805,391,000    
Weighted Average Remaining Contractual Life (years) 4 years 11 months 16 days    
Weighted average exercise price, options outstanding (in dollars per share) $ 49.44    
Number of Options Exercisable as of June 30, 2013 672,846,000    
Weighted average exercise price, options exercisable (in dollars per share) $ 39.97