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Earnings Per Share (Tables)
3 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Weighted Average Common Shares Used in Computations of Basic and Diluted Earnings Per Share
The weighted average common shares used in the computations of basic and diluted earnings per share (shares in thousands) were as follows:
 
Three Months Ended
December 31,
 
2017
 
2016
Average common shares outstanding
230,038

 
213,064

Dilutive share equivalents from share-based plans (A)

 
4,675

Average common and common equivalent shares outstanding – assuming dilution
230,038

 
217,739


(A)
For the three months ended December 31, 2017, approximately 4 million dilutive share equivalents from share-based plans and 12 million dilutive share equivalents associated with mandatory convertible preferred stock were excluded from the diluted shares outstanding calculation because the result would have been antidilutive.