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Earnings Per Share (Schedule Of Weighted Average Number Of Shares Outstanding Excluded From The Computation Of Diluted Earnings Per Share) (Details)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Stock Options [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Shares excluded from the computation of diluted earnings    25.4 6.4 23.2
Performance Awards [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Shares excluded from the computation of diluted earnings 3.6 5.0 4.6 4.7