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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Earnings Per Share [Abstract] |
Calculation of Basic and Diluted Net Earnings Per Common Share | The following table sets forth the calculation of basic and diluted net earnings per common share ($ in millions, except per share data in dollars and shares in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Earnings attributable to Centene Corporation | $ | 1,206 |  |  | $ | 495 |  |  | $ | 1,252 |  |  | $ | 1,017 |
Shares used in computing per share amounts: |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding | 579,189 |  |  | 413,370 |  |  | 561,623 |  |  | 413,144 |
Common stock equivalents (as determined by applying the treasury stock method) | 8,309 |  |  | 6,301 |  |  | 7,936 |  |  | 6,563 |
Weighted average number of common shares and potential dilutive common shares outstanding | 587,498 |  |  | 419,671 |  |  | 569,559 |  |  | 419,707 |
Net earnings per common share attributable to Centene Corporation: |  |  |  |
Basic earnings per common share | $ | 2.08 |  |  | $ | 1.20 |  |  | $ | 2.23 |  |  | $ | 2.46 |
Diluted earnings per common share | $ | 2.05 |  |  | $ | 1.18 |  |  | $ | 2.20 |  |  | $ | 2.42 |

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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=6371337&loc=d3e3550-109257 + Details
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