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Earnings Per Share (Tables) | 12 Months Ended
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Sep. 30, 2018
Earnings Per Share |
Reconciliation of the denominators for basic and diluted EPS |
|  | Fiscal Year Ended
|  | September 30, |  | September 30, |  | September 30,
|  | 2018 |  | 2017 |  | 2016
|  | (in millions)
Denominator for basic earnings per share |  | 159.1 |  | 155.7 |  | 154.8
Potential common shares |  | 3.2 |  | 3.4 |  | 1.3
Denominator for diluted earnings per share |  | 162.3 |  | 159.1 |  | 156.1

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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