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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share |
Reconciliation of basic and diluted earnings per common share |
|  | Three Months Ended
|  | March 31,
In millions, except per share amounts |  | 2018 |  | 2017
Numerator for earnings per share calculation: |  |  |  |  |  |
Income from continuing operations |  | $ | 998 |  | $ | 962
Income allocated to participating securities |  |  | (2) |  |  | (4)
Net income attributable to noncontrolling interest |  |  | — |  |  | (1)
Income from continuing operations attributable to CVS Health |  | $ | 996 |  | $ | 957
Denominator for earnings per share calculation: |  |  |  |  |  |
Weighted average shares, basic |  |  | 1,016 |  |  | 1,030
Effect of dilutive securities |  |  | 3 |  |  | 5
Weighted average shares, diluted |  |  | 1,019 |  |  | 1,035
Earnings per share from continuing operations: |  |  |  |  |  |
Basic |  | $ | 0.98 |  | $ | 0.93
Diluted |  | $ | 0.98 |  | $ | 0.92

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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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