Subsequent Event (Details) (AstraZeneca [Member], Business acquisition [Member], GBP £)	May 02, 2014
AstraZeneca [Member] \| Business acquisition [Member]
Subsequent Event [Line Items]
Proposed Business Combination Amount of Shares Offered in Combined Entity	1.845
Proposed Business Combination Cash Amount Offered (per share) in Addition to Shares in Combined Entity	£ 15.98

Proposed Business Combination Cash Amount Offered (per share) in Addition to Shares in Combined Entity

No definition available.

Name:	pfe_ProposedBusinessCombinationCashAmountOfferedpershareinAdditiontoSharesinCombinedEntity
Namespace Prefix:	pfe_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant