Segment, Geographic and Other Revenue Information - Revenues By Products (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Apr. 01, 2012
Revenue from External Customer [Line Items]
Gains (Losses) on Sales of Assets	$ 490	$ 0
Lipitor [Member]
Revenue from External Customer [Line Items]
Loss in revenue in comparison with 2011	792
Hisun Pfizer Pharmaceuticals Co. Ltd [Member] \| Pfizer [Member]
Revenue from External Customer [Line Items]
Gains (Losses) on Sales of Assets	$ 490

The net gain (loss) resulting from the sale, transfer, termination, or other disposition of assets during the period, excluding transactions involving capital leases, assets-held- or available-for-lease, and other real estate owned which, to the extent appropriate, are included in gains (losses) on the disposition of assets in nonoperating income (expense).

No definition available.

Name:	us-gaap_GainsLossesOnSalesOfAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration