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Earnings Per Share
 6 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Earnings Per Share
EARNINGS PER SHARE

The following is the computation of basic and diluted EPS for the three and six months ended March 31, 2018 and 2017. EPS is reported under the treasury stock method.

 
 
Three months ended
 
Six months ended
 
 
March 31
 
March 31
(In millions except per share data)
 
2018
 
2017
 
2018
 
2017
Numerator
 
 
 
 
 
 
 
 
Net income
 
$
67

 
$
71

 
$
57

 
$
143

Denominator
 
 
 
 
 
 
 
 
Weighted average shares used to compute basic EPS
 
200

 
205

 
201

 
205

Dilutive effect of share-based awards (a)
 
—

 
—

 
1

 
—

Weighted average shares used to compute diluted EPS
 
200


205

 
202

 
205

 
 
 
 
 
 
 
 
 
Earnings per share
 
 
 
 
 
 
 
 
Basic
 
$
0.33

 
$
0.35

 
$
0.28

 
$
0.70

Diluted
 
$
0.33

 
$
0.35

 
$
0.28

 
$
0.70

 
 
 
 
 
 
 
 
 
(a) During the three months ended March 31, 2018 and 2017, as well as the six months ended March 31, 2017, there was not a significant dilutive impact from potential common shares.