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Earnings Per Share (Tables)
 6 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following is the computation of basic and diluted earnings per share (“EPS”). Earnings per share is reported under the treasury stock method.

 
 
Three months ended
 
Six months ended
 
 
March 31
 
March 31
(In millions except per share data)
 
2017
 
2016
 
2017
 
2016
Numerator
 
 
 
 
 
 
 
 
Net income
 
$
71

 
$
68

 
$
143

 
$
133

Denominator
 
 
 
 
 
 
 
 
Weighted-average shares used to compute basic EPS
 
205

 
205

 
205

 
205

Effect of dilutive securities (a)
 
—

 
—

 
—

 
—

Weighted-average shares used to compute diluted EPS
 
205


205

 
205

 
205

 
 
 
 
 
 
 
 
 
Earnings per share
 
 
 
 
 
 
 
 
Basic
 
$
0.35

 
$
0.33

 
$
0.70

 
$
0.65

Diluted
 
$
0.35

 
$
0.33

 
$
0.70

 
$
0.65

 
 
 
 
 
 
 
 
 
(a) During the six months ended March 31, 2017, the Company issued share-based awards to six non-employee directors. These awards had no material impact on earnings per share.