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Earnings Per Share (Tables) | 9 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Numerator and denominator used to compute basic and diluted earnings per share | The following table sets forth the numerators and denominators used in the computation of basic and diluted earnings per share.
|  | Three Months Ended June 30, |  | Nine Months Ended June 30,
|  | 2017 |  | 2016 |  | 2017 |  | 2016
|  | (In millions)
Numerator: |  |  |  |  |  |  |  |
Net income |  | $ | 289.0 |  |  | $ | 249.8 |  |  | $ | 725.1 |  |  | $ | 602.6 |
Denominator: |  |  |  |  |  |  |  |
Denominator for basic earnings per share — weighted average common shares |  | 374.8 |  |  | 371.8 |  |  | 374.1 |  |  | 370.4 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Employee stock awards |  | 4.6 |  |  | 4.1 |  |  | 4.4 |  |  | 4.0 |
Denominator for diluted earnings per share — adjusted weighted average common shares |  | 379.4 |  |  | 375.9 |  |  | 378.5 |  |  | 374.4 |
Basic net income per common share |  | $ | 0.77 |  |  | $ | 0.67 |  |  | $ | 1.94 |  |  | $ | 1.63 |
Net income per common share assuming dilution |  | $ | 0.76 |  |  | $ | 0.66 |  |  | $ | 1.92 |  |  | $ | 1.61 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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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