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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | The following is a reconciliation of basic and diluted earnings per share for the respective periods:
| Three Months Ended June 30, |  | Six Months Ended June 30,
In millions, except per share amounts | 2020 |  | 2019 |  | 2020 |  | 2019
Numerator for earnings per share calculation: |  |  |  |  |  |  |
Net income | $ | 2,986 |  |  | $ | 1,931 |  |  | $ | 4,998 |  |  | $ | 3,358 |
Income allocated to participating securities | — |  |  | (1 | ) |  | — |  |  | (3 | )
Net (income) loss attributable to noncontrolling interests | (11 | ) |  | 5 |  |  | (16 | ) |  | (1 | )
Net income attributable to CVS Health | $ | 2,975 |  |  | $ | 1,935 |  |  | $ | 4,982 |  |  | $ | 3,354 |
Denominator for earnings per share calculation: |  |  |  |  |  |  |
Weighted average shares, basic | 1,309 |  |  | 1,301 |  |  | 1,307 |  |  | 1,299 |
Effect of dilutive securities | 5 |  |  | 1 |  |  | 6 |  |  | 3 |
Weighted average shares, diluted | 1,314 |  |  | 1,302 |  |  | 1,313 |  |  | 1,302 |
Earnings per share: |  |  |  |  |  |  |
Basic | $ | 2.27 |  |  | $ | 1.49 |  |  | $ | 3.81 |  |  | $ | 2.58 |
Diluted | $ | 2.26 |  |  | $ | 1.49 |  |  | $ | 3.79 |  |  | $ | 2.58 |

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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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