| **Earnings Per Common Share Attributable to Common Shareholders (Tables)** | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| **Earnings Per Share [Abstract]**                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| Schedule of Basic and Diluted Earning Per Share                            | The following table provides the detailed calculation of Earnings per common share (EPS):  Year Ended December 31,(IN MILLIONS) 2014 2013 2012EPS Numerator––Basic      Income from continuing operations $9,119 $11,410 $9,021Less: Net income attributable to noncontrolling interests 32 30 28Income from continuing operations attributable to Pfizer Inc. 9,087 11,380 8,993Less: Preferred stock dividends––net of tax 1 2 2Income from continuing operations attributable to Pfizer Inc. common shareholders 9,086 11,378 8,991Discontinued operations––net of tax 48 10,662 5,577Less: Discontinued operations––net of tax, attributable to noncontrolling interests — 39 —Discontinued operations––net of tax, attributable to Pfizer Inc. common shareholders 48 10,623 5,577Net income attributable to Pfizer Inc. common shareholders $9,134 $22,001 $14,568EPS Numerator––Diluted      Income from continuing operations attributable to Pfizer Inc. common shareholders and assumed conversions $9,087 $11,380 $8,993Discontinued operations––net of tax, attributable to Pfizer Inc. common shareholders and assumed conversions 48 10,623 5,577Net income attributable to Pfizer Inc. common shareholders and assumed conversions $9,135 $22,003 $14,570EPS Denominator      Weighted-average number of common shares outstanding––Basic 6,346 6,813 7,442Common-share equivalents: stock options, stock issuable under employee compensation plans and convertible preferred stock 78 82 66Weighted-average number of common shares outstanding––Diluted 6,424 6,895 7,508Stock options that had exercise prices greater than the average market price of our common stock issuable under employee compensation plans(a) 44 43 177`(a) These common stock equivalents were outstanding for the years ended December 31, 2014, 2013 and 2012, 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
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
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