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Earnings Per Common Share Attributable to Common Shareholders (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Oct. 01, 2017 | Sep. 30, 2018 | Oct. 01, 2017
EPS Numerator––Basic |  |  |  |  |
Income from continuing operations | [1] | $ 4,111 | $ 2,858 | $ 11,562 | $ 9,064
Less: Net income attributable to noncontrolling interests |  | 8 | 18 | 25 | 32
Income from continuing operations attributable to Pfizer Inc. |  | 4,103 | 2,840 | 11,537 | 9,032
Less: Preferred stock dividends––net of tax |  | 0 | 0 | 1 | 1
Income from continuing operations attributable to Pfizer Inc. common shareholders |  | 4,103 | 2,839 | 11,536 | 9,032
Discontinued operations––net of tax | [1] | 11 | 0 | 10 | 1
Net income attributable to Pfizer Inc. common shareholders |  | 4,114 | 2,839 | 11,546 | 9,033
EPS Numerator––Diluted |  |  |  |  |
Income from continuing operations attributable to Pfizer Inc. common shareholders and assumed conversions |  | 4,103 | 2,840 | 11,537 | 9,032
Discontinued operations––net of tax, attributable to Pfizer Inc. common shareholders and assumed conversions |  | 11 | 0 | 10 | 1
Net income attributable to Pfizer Inc. common shareholders and assumed conversions |  | $ 4,114 | $ 2,840 | $ 11,546 | $ 9,034
EPS Denominator |  |  |  |  |
Weighted-average number of common shares outstanding––Basic | [1] | 5,875 | 5,951 | 5,899 | 5,972
Common-share equivalents: stock options, stock issuable under employee compensation plans, convertible preferred stock and accelerated share repurchase agreements (shares) |  | 112 | 89 | 99 | 85
Weighted-average number of common shares outstanding––Diluted | [1] | 5,986 | 6,041 | 5,998 | 6,057
Equity Option [Member] |  |  |  |  |
EPS Denominator |  |  |  |  |
Stock options that had exercise prices greater than the average market price of our common stock issuable under employee compensation plans (shares) | [2] | 5 | 47 | 3 | 47
[1] | Amounts may not add due to rounding.
[2] | These common stock equivalents were outstanding for the periods presented, but were not included in the computation of diluted EPS for those periods because their inclusion would have had an anti-dilutive effect.

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- Definition This element represents the income or loss from continuing operations available to common stockholders which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items and cumulative effects of changes in accounting principles, but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests and preferred stock dividends declared or paid in the period, if any. + References No definition available. + Details
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- Definition This element represents the income or loss from continuing operations available to common stockholders which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items and cumulative effects of changes in accounting principles, but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests and preferred stock dividends declared or paid in the period, if any. + References No definition available. + Details
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