Taxes on Income Narrative (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended								3 Months Ended
	Jul. 03, 2011	Jul. 04, 2010	Jul. 03, 2011	Jul. 04, 2010	Jul. 03, 2011 U.S. Internal Revenue Service [Member]	Jul. 03, 2011 U.S. Internal Revenue Service [Member] Wyeth [Member]	Jul. 03, 2011 Canadian federal tax authority [Member]	Jul. 03, 2011 Japan tax authority [Member]	Jul. 03, 2011 European tax authorities (primarily Ireland, UK, France, Italy, Spain and Germany) [Member]	Jul. 03, 2011 Puerto Rico tax authority [Member]	Apr. 03, 2011 Wyeth [Member]
Income Taxes [Line Items]
Effective tax rate	29.70%	37.50%	29.20%	36.90%
Tax years under examination					2006, 2007, 2008
Years open to tax audits					2009-2011	2006-October 15, 2009	1998-2011	2006-2011	1997-2011	2006-2011
A settlement with the IRS regarding the audits for the tax years 2002 through 2005 resulted in an income tax benefit to Pfizer for income tax and interest						$ 80					$ 80

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

Reflects the effects of adjustments of previously recorded tax expense, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, IRS tax settlement and unusual repatriation of foreign earnings.

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