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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
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) | 2021 |  | 2020 |  | 2019
Numerator: |  |  |  |  |
Net Income (Loss) Available to Common Shareholders - Basic | $ | 529.8 |  |  | $ | (72.7) |  |  | $ | 328.0 |
Dilutive effect of Equity Units | 1.6 |  |  | — |  |  | — |
Net Income (Loss) Available to Common Shareholders - Diluted | $ | 531.4 |  |  | $ | (72.7) |  |  | $ | 328.0 |
Denominator: |  |  |  |  |
Average common shares outstanding - Basic | 393.6 |  |  | 384.3 |  |  | 374.6 |
Dilutive potential common shares: |  |  |  |  |
Equity Units | 22.0 |  |  | — |  |  | — |
Shares contingently issuable under employee stock plans | 0.8 |  |  | — |  |  | 0.9 |
Shares restricted under employee stock plans | 0.3 |  |  | — |  |  | 0.2 |
ATM Forward agreements | 0.6 |  |  | — |  |  | 0.3 |
Average Common Shares - Diluted | 417.3 |  |  | 384.3 |  |  | 376.0 |
Earnings per common share: |  |  |  |  |
Basic | $ | 1.35 |  |  | $ | (0.19) |  |  | $ | 0.88 |
Diluted | $ | 1.27 |  |  | $ | (0.19) |  |  | $ | 0.87 |

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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 http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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