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Earnings (Loss) Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings (Loss) Per Share |
Reconciliation of basic and diluted earnings per common share |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
In millions, except per share amounts |  | 2018 |  | 2017 |  | 2018 |  | 2017
Numerator for earnings (loss) per share calculation: |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | (2,562) |  | $ | 1,097 |  | $ | (1,564) |  | $ | 2,059
Income from continuing operations allocated to participating securities |  |  | (1) |  |  | (3) |  |  | (3) |  |  | (8)
Income from continuing operations attributable to noncontrolling interests |  |  | — |  |  | — |  |  | — |  |  | (1)
Income (loss) from continuing operations attributable to CVS Health |  | $ | (2,563) |  | $ | 1,094 |  | $ | (1,567) |  | $ | 2,050
Denominator for earnings (loss) per share calculation: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares, basic |  |  | 1,018 |  |  | 1,019 |  |  | 1,017 |  |  | 1,024
Effect of dilutive securities |  |  | — |  |  | 5 |  |  | — |  |  | 5
Weighted average shares, diluted |  |  | 1,018 |  |  | 1,024 |  |  | 1,017 |  |  | 1,029
Earnings (loss) per share from continuing operations: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (2.52) |  | $ | 1.07 |  | $ | (1.54) |  | $ | 2.00
Diluted |  | $ | (2.52) |  | $ | 1.07 |  | $ | (1.54) |  | $ | 1.99

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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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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