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Net Income Per Common Share (Tables) | 3 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted net income per common share (in millions, except per share amounts):
|  |  | Three Months Ended June 30, |  |
|  |  |  |  |  |  | 2023 |  | 2022 |  |  |  |
Net income |  |  |  |  |  |  | $ | 666.4 |  |  | $ | 507.2 |  |  |  |  |
Basic weighted average common shares outstanding |  |  |  |  |  |  | 545.1 |  |  | 553.8 |  |  |  |  |
Dilutive effect of stock options and RSUs |  |  |  |  |  |  | 5.1 |  |  | 5.5 |  |  |  |  |
Dilutive effect of 2015 Senior Convertible Debt |  |  |  |  |  |  | 0.3 |  |  | 1.0 |  |  |  |  |
Dilutive effect of 2017 Senior Convertible Debt |  |  |  |  |  |  | 0.9 |  |  | 1.1 |  |  |  |  |
Dilutive effect of 2017 Junior Convertible Debt |  |  |  |  |  |  | — |  |  | 0.1 |  |  |  |  |
Diluted weighted average common shares outstanding |  |  |  |  |  |  | 551.4 |  |  | 561.5 |  |  |  |  |
Basic net income per common share |  |  |  |  |  |  | $ | 1.22 |  |  | $ | 0.92 |  |  |  |  |
Diluted net income per common share |  |  |  |  |  |  | $ | 1.21 |  |  | $ | 0.90 |  |  |  |  |
Schedule of Convertible Debt | The following is the weighted average conversion price per share used in calculating the dilutive effect (see Note 5 for details on the Convertible Debt):
|  |  | Three Months Ended June 30, |  |
|  |  |  |  |  |  | 2023 |  | 2022 |  |  |  |
2015 Senior Convertible Debt |  |  |  |  |  |  | $ | 29.25 |  |  | $ | 29.77 |  |  |  |  |
2017 Senior Convertible Debt |  |  |  |  |  |  | $ | 45.61 |  |  | $ | 46.43 |  |  |  |  |
2020 Senior Convertible Debt |  |  |  |  |  |  | $ | 92.32 |  |  | $ | 93.07 |  |  |  |  |
2017 Junior Convertible Debt(1) |  |  |  |  |  |  | $ | 44.81 |  |  | $ | 45.62 |  |  |  |  |
(1) The weighted average conversion price per share for the 2017 Junior Convertible Debt was prior to the settlement of the outstanding principal amount in May 2023.

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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