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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table presents the calculation of our basic and diluted EPS:
Year Ended December 31, (in millions, except per share amounts) | 2023 |  | 2022 |  | 2021
Numerator: |  |  |  |  |
Net Income Available to Common Shareholders | $ | 661.7 |  |  | $ | 749.0 |  |  | $ | 529.8 |
Less: Income allocated to participating securities | 0.6 |  |  | — |  |  | — |
Net Income Available to Common Shareholders - Basic | $ | 661.1 |  |  | $ | 749.0 |  |  | $ | 529.8 |
Add: Dilutive effect of Equity Units | 1.4 |  |  | 2.0 |  |  | 1.6 |
Net Income Available to Common Shareholders - Diluted | $ | 662.5 |  |  | $ | 751.0 |  |  | $ | 531.4 |
Denominator: |  |  |  |  |
Average common shares outstanding - Basic | 416.1 |  |  | 407.1 |  |  | 393.6 |
Dilutive potential common shares: |  |  |  |  |
Equity Units purchase contracts | 29.8 |  |  | 30.2 |  |  | 22.0 |
Equity Units purchase contract payment balance | 0.9 |  |  | 3.2 |  |  | — |
Shares contingently issuable under employee stock plans | 0.7 |  |  | 0.9 |  |  | 0.8 |
Shares restricted under employee stock plans | 0.4 |  |  | 0.5 |  |  | 0.3 |
ATM Forward agreements | — |  |  | 0.8 |  |  | 0.6 |
Average Common Shares - Diluted | 447.9 |  |  | 442.7 |  |  | 417.3 |
Earnings per common share: |  |  |  |  |
Basic | $ | 1.59 |  |  | $ | 1.84 |  |  | $ | 1.35 |
Diluted | $ | 1.48 |  |  | $ | 1.70 |  |  | $ | 1.27 |

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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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