CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016		Sep. 27, 2015
Income Statement [Abstract]
Revenues	[1],[2],[3]	$ 13,045	$ 12,087	$ 39,196		$ 34,804
Costs and expenses:
Cost of sales	[1],[2]	3,085	2,219	9,111		6,238
Selling, informational and administrative expenses	[1],[2]	3,559	3,270	10,414		9,761
Research and development expenses	[1],[2]	1,881	1,722	5,360		5,342
Amortization of intangible assets	[1]	968	937	2,934		2,748
Restructuring charges and certain acquisition-related costs	[1]	531	581	988		727
Other (income)/deductions––net	[1]	1,417	661	2,815		670
Income from continuing operations before provision for taxes on income	[1],[4]	1,604	2,697	7,575		9,319
Provision for taxes on income	[1]	284	567	1,194		2,178
Income from continuing operations	[1]	1,320	2,130	6,380		7,141
Discontinued operations––net of tax	[1]	0	8	0		14
Net income before allocation to noncontrolling interests	[1],[5]	1,319	2,139	6,380	[6]	7,155	[6]
Less: Net income attributable to noncontrolling interests	[1]	0	9	25		23
Net income attributable to Pfizer Inc.	[1]	$ 1,320	$ 2,130	$ 6,355		$ 7,132
Earnings per common share––basic:
Income from continuing operations attributable to Pfizer Inc. common shareholders (in dollars per share)	[1]	$ 0.22	$ 0.34	$ 1.04		$ 1.15
Discontinued operations––net of tax (in dollars per share)	[1]	0.00	0.00	0.00		0.00
Net income attributable to Pfizer Inc. common shareholders (in dollars per share)	[1]	0.22	0.35	1.04		1.15
Earnings per common share––diluted:
Income from continuing operations attributable to Pfizer Inc. common shareholders (in dollars per share)	[1]	0.22	0.34	1.03		1.14
Discontinued operations––net of tax (in dollars per share)	[1]	0.00	0.00	0.00		0.00
Net income attributable to Pfizer Inc. common shareholders (in dollars per share)	[1]	$ 0.21	$ 0.34	$ 1.03		$ 1.14
Weighted-average shares––basic	[1]	6,066	6,168	6,095		6,176
Weighted-average shares––diluted	[1]	6,138	6,243	6,164		6,259
Cash dividends paid per common share (in dollars per share)	[1]	$ 0.3	$ 0.28	$ 0.9		$ 0.84

[1] Amounts may not add due to rounding.

[2] Excludes amortization of intangible assets, except as disclosed in Note 9A. Identifiable Intangible Assets and Goodwill: Identifiable Intangible Assets.

[3] On September 3, 2015, we acquired Hospira. Commencing from the acquisition date, our condensed consolidated statement of income includes the operating results of Hospira. As a result, legacy Hospira operations are included in our condensed consolidated statements of income for the third quarter and first nine months of 2016. In accordance with our domestic and international reporting periods, our results of operations and EH's operating results for the third quarter and first nine months of 2015 reflect only one month of legacy Hospira U.S. operations but no financial results from legacy Hospira international operations. On June 24, 2016, we acquired Anacor. Commencing from the acquisition date, our condensed consolidated statement of income includes the operating results of Anacor. As a result, legacy Anacor operations are included in our condensed consolidated statements of income for the third quarter and first nine months of 2016. In accordance with our domestic reporting period, our results of operations and IH's operating results for the third quarter and first nine months of 2016 include approximately three months of legacy Anacor operations. Additionally, on September 28, 2016, we acquired Medivation. Commencing from the acquisition date, our condensed consolidated statement of income includes the operating results of Medivation. As a result, legacy Medivation operations are included in our condensed consolidated statements of income for the third quarter and first nine months of 2016. In accordance with our domestic and international reporting periods, our results of operations and IH's operating results for the third quarter and first nine months of 2016 reflect three business days of legacy Medivation operations, which were immaterial. See Note 2A for additional information.

[4] Income from continuing operations before provision for taxes on income.

[5] Amounts may not add due to rounding.

[6] Amounts may not add due to rounding.