Segment, Geographic and Other Revenue Information - Revenues By Products (Parenthetical) (Detail) (Lipitor [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
Nov. 30, 2011
Lipitor [Member]
Revenue from External Customer [Line Items]
Exclusivity expiration date	Nov. 30, 2011
Loss in revenue in comparison with 2010	$ (326)

The reduction in revenue due to the loss of exclusivity of marketing right for a drug.

No definition available.

Name:	pfe_ReductionInRevenuesDueToLossOfExclusivity
Namespace Prefix:	pfe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration