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Earnings Per Share | 12 Months Ended
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Sep. 30, 2023
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | 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,
| 2023 |  | 2022 |  | 2021
Income Available to Ordinary Shareholders |  |  |  |  |
Income from continuing operations | $ | 1,849 |  |  | $ | 1,532 |  |  | $ | 1,513 |
Income from discontinued operations | — |  |  | — |  |  | 124 |
Basic and diluted income available to shareholders | $ | 1,849 |  |  | $ | 1,532 |  |  | $ | 1,637 |
Weighted Average Shares Outstanding |  |  |  |  |
Basic weighted average shares outstanding | 684.3 |  |  | 696.1 |  |  | 716.6 |
Effect of dilutive securities: |  |  |  |  |
Stock options, unvested restricted stock and unvested performance share awards | 3.1 |  |  | 3.5 |  |  | 4.5 |
Diluted weighted average shares outstanding | 687.4 |  |  | 699.6 |  |  | 721.1 |
Antidilutive Securities |  |  |  |  |
Stock options and unvested restricted stock | 0.2 |  |  | 0.4 |  |  | — |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//260/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-3 + Details
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