Earnings Per Share (Tables)

3 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table summarizes basic and diluted earnings per share:

	Three months ended
	December 31
(In millions, except per share data)	2019		2018
Numerator
Net income	$	73	$	53
Denominator
Weighted average common shares outstanding	189		188
Effect of potentially dilutive securities (a)	—		1
Weighted average diluted shares outstanding	189		189
Earnings per share
Basic	$	0.39	$	0.28
Diluted	$	0.39	$	0.28

(a) Approximately 1 million and 2 million outstanding securities, primarily stock appreciation rights, were not included in the computation of diluted earnings per share because their effect would have been antidilutive for the three months ended December 31, 2019 and 2018, respectively.