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Earnings Per Share (Tables) | 12 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Earnings Per Share | The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share (in millions):
| Year Ended September 30,
| 2022 |  | 2021 |  | 2020
Income Available to Ordinary Shareholders |  |  |  |  |
Income from continuing operations | $ | 1,532 |  |  | $ | 1,513 |  |  | $ | 631 |
Income from discontinued operations | — |  |  | 124 |  |  | — |
Basic and diluted income available to shareholders | $ | 1,532 |  |  | $ | 1,637 |  |  | $ | 631 |
Weighted Average Shares Outstanding |  |  |  |  |
Basic weighted average shares outstanding | 696.1 |  |  | 716.6 |  |  | 751.0 |
Effect of dilutive securities: |  |  |  |  |
Stock options, unvested restricted stock and unvested performance share awards | 3.5 |  |  | 4.5 |  |  | 2.6 |
Diluted weighted average shares outstanding | 699.6 |  |  | 721.1 |  |  | 753.6 |
Antidilutive Securities |  |  |  |  |
Stock options and unvested restricted stock | 0.4 |  |  | — |  |  | 1.4 |

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- References No definition available. + Details
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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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