Segment, Product and Geographic Area Information - Revenues By Products (Detail) (USD $) In Millions	3 Months Ended				9 Months Ended
	Oct. 02, 2011		Oct. 03, 2010		Oct. 02, 2011		Oct. 03, 2010
Revenue from External Customer [Line Items]
Revenues	$ 17,193		$ 15,995		$ 50,679		$ 49,703
Biopharmaceutical [Member]
Revenue from External Customer [Line Items]
Revenues	14,747		13,945		43,611		43,472
Biopharmaceutical [Member] | Lipitor [Member]
Revenue from External Customer [Line Items]
Revenues	2,602		2,534		7,578		8,104
Biopharmaceutical [Member] | Prevnar / Prevenar 13 [Member]
Revenue from External Customer [Line Items]
Revenues	1,006		735		2,823		1,590
Biopharmaceutical [Member] | Enbrel [Member]
Revenue from External Customer [Line Items]
Revenues	957	[1]	799	[1]	2,741	[1]	2,409	[1]
Biopharmaceutical [Member] | Lyrica [Member]
Revenue from External Customer [Line Items]
Revenues	961		757		2,695		2,242
Biopharmaceutical [Member] | Celebrex [Member]
Revenue from External Customer [Line Items]
Revenues	643		578		1,856		1,752
Biopharmaceutical [Member] | Viagra [Member]
Revenue from External Customer [Line Items]
Revenues	493		459		1,458		1,429
Biopharmaceutical [Member] | Norvasc [Member]
Revenue from External Customer [Line Items]
Revenues	350		330		1,081		1,120
Biopharmaceutical [Member] | Zyvox [Member]
Revenue from External Customer [Line Items]
Revenues	321		285		965		876
Biopharmaceutical [Member] | Xalatan / Xalacom [Member]
Revenue from External Customer [Line Items]
Revenues	277		416		960		1,287
Biopharmaceutical [Member] | Sutent [Member]
Revenue from External Customer [Line Items]
Revenues	298		257		870		771
Biopharmaceutical [Member] | Premarin family [Member]
Revenue from External Customer [Line Items]
Revenues	267		263		757		779
Biopharmaceutical [Member] | Geodon / Zeldox [Member]
Revenue from External Customer [Line Items]
Revenues	263		262		753		763
Biopharmaceutical [Member] | Detrol / Detrol LA [Member]
Revenue from External Customer [Line Items]
Revenues	213		237		668		758
Biopharmaceutical [Member] | Genotropin [Member]
Revenue from External Customer [Line Items]
Revenues	215		211		654		650
Biopharmaceutical [Member] | Vfend [Member]
Revenue from External Customer [Line Items]
Revenues	171		200		558		595
Biopharmaceutical [Member] | Chantix / Champix [Member]
Revenue from External Customer [Line Items]
Revenues	156		163		545		522
Biopharmaceutical [Member] | Effexor XR [Member]
Revenue from External Customer [Line Items]
Revenues	165		175		537		1,512
Biopharmaceutical [Member] | BeneFIX [Member]
Revenue from External Customer [Line Items]
Revenues	178		156		518		474
Biopharmaceutical [Member] | Zosyn / Tazocin [Member]
Revenue from External Customer [Line Items]
Revenues	149		255		490		749
Biopharmaceutical [Member] | Caduet [Member]
Revenue from External Customer [Line Items]
Revenues	150		127		435		388
Biopharmaceutical [Member] | Pristiq [Member]
Revenue from External Customer [Line Items]
Revenues	146		118		422		341
Biopharmaceutical [Member] | Zoloft [Member]
Revenue from External Customer [Line Items]
Revenues	139		126		420		390
Biopharmaceutical [Member] | Prevnar / Prevenar (7-valent) [Member]
Revenue from External Customer [Line Items]
Revenues	98		179		406		1,030
Biopharmaceutical [Member] | Revatio [Member]
Revenue from External Customer [Line Items]
Revenues	140		116		393		352
Biopharmaceutical [Member] | Medrol [Member]
Revenue from External Customer [Line Items]
Revenues	127		119		383		341
Biopharmaceutical [Member] | ReFacto AF/ Xyntha [Member]
Revenue from External Customer [Line Items]
Revenues	140		102		380		290
Biopharmaceutical [Member] | Zithromax / Zmax [Member]
Revenue from External Customer [Line Items]
Revenues	93		90		335		303
Biopharmaceutical [Member] | Aricept [Member]
Revenue from External Customer [Line Items]
Revenues	117	[2]	106	[2]	335	[2]	337	[2]
Biopharmaceutical [Member] | Aromasin [Member]
Revenue from External Customer [Line Items]
Revenues	85		111		294		361
Biopharmaceutical [Member] | Cardura [Member]
Revenue from External Customer [Line Items]
Revenues	92		95		289		312
Biopharmaceutical [Member] | Rapamune [Member]
Revenue from External Customer [Line Items]
Revenues	96		104		285		292
Biopharmaceutical [Member] | Fragmin [Member]
Revenue from External Customer [Line Items]
Revenues	95		84		283		258
Biopharmaceutical [Member] | BMP2 [Member]
Revenue from External Customer [Line Items]
Revenues	83		101		277		298
Biopharmaceutical [Member] | Relpax [Member]
Revenue from External Customer [Line Items]
Revenues	86		75		250		239
Biopharmaceutical [Member] | Xanax XR [Member]
Revenue from External Customer [Line Items]
Revenues	77		72		232		224
Biopharmaceutical [Member] | Tygacil [Member]
Revenue from External Customer [Line Items]
Revenues	76		78		224		250
Biopharmaceutical [Member] | Neurontin [Member]
Revenue from External Customer [Line Items]
Revenues	67		80		222		238
Biopharmaceutical [Member] | Diflucan [Member]
Revenue from External Customer [Line Items]
Revenues	72		74		201		205
Biopharmaceutical [Member] | Arthrotec [Member]
Revenue from External Customer [Line Items]
Revenues	61		61		182		185
Biopharmaceutical [Member] | Unasyn [Member]
Revenue from External Customer [Line Items]
Revenues	58		61		172		182
Biopharmaceutical [Member] | Protonix [Member]
Revenue from External Customer [Line Items]
Revenues	65		203		168		535
Biopharmaceutical [Member] | EpiPen [Member]
Revenue from External Customer [Line Items]
Revenues	59	[3]			160	[3]
Biopharmaceutical [Member] | Sulperazon [Member]
Revenue from External Customer [Line Items]
Revenues	51		49		155		153
Biopharmaceutical [Member] | Skelaxin [Member]
Revenue from External Customer [Line Items]
Revenues	58	[3]			145	[3]
Biopharmaceutical [Member] | Inspra [Member]
Revenue from External Customer [Line Items]
Revenues	51		37		142		113
Biopharmaceutical [Member] | Dalacin / Cleocin [Member]
Revenue from External Customer [Line Items]
Revenues	51		54		139		168
Biopharmaceutical [Member] | Alliance revenues [Member]
Revenue from External Customer [Line Items]
Revenues	919	[4]	1,042	[4]	2,678	[4]	3,107	[4]
Biopharmaceutical [Member] | All Other Biopharmaceutical Products [Member]
Revenue from External Customer [Line Items]
Revenues	1,710		1,409		5,097		4,198
Other products [Member] | Animal Health [Member]
Revenue from External Customer [Line Items]
Revenues	1,041		860		3,078		2,599
Other products [Member] | Consumer Healthcare [Member]
Revenue from External Customer [Line Items]
Revenues	774		673		2,240		2,014
Other products [Member] | Nutrition [Member]
Revenue from External Customer [Line Items]
Revenues	577		441		1,540		1,375
Other products [Member] | Pfizer CentreSource [Member]
Revenue from External Customer [Line Items]
Revenues	$ 54		$ 76		$ 210		$ 243

[1] Outside the U.S. and Canada.

[2] Represents direct sales under license agreement with Eisai Co., Ltd.

[3] Legacy King product. King's results are included in our financial statements commencing from the acquisition date of January 31, 2011, in accordance with Pfizer's domestic and international year-ends. Therefore, our results for both periods in 2010 do not include King's results of operations.

[4] Enbrel (in the U.S. and Canada), Aricept, Exforge, Rebif and Spiriva.