Acquisitions, Research and Development and Collaborative Arrangements, and Equity-Method Investments - Equity-Method Investments (Details) $ in Millions	3 Months Ended
Apr. 03, 2016 USD ($)
Hisun Pfizer Pharmaceuticals Co. Ltd [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Equity Method Investments	$ 680
Hisun Pfizer Pharmaceuticals Co. Ltd [Member] \| Other Nonoperating Income (Expense) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, impairment	$ 81
Laboratorio Teuto Brasilero [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	40.00%
Laboratorio Teuto Brasilero [Member] \| Other Nonoperating Income (Expense) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, impairment	$ 50
Discounted Cash Flows Technique [Member] \| Hisun Pfizer Pharmaceuticals Co. Ltd [Member]
Schedule of Equity Method Investments [Line Items]
Discount rate	13.00%
Discounted Cash Flows Technique [Member] \| Laboratorio Teuto Brasilero [Member]
Schedule of Equity Method Investments [Line Items]
Discount rate	17.50%
Laboratorio Teuto Brasilero [Member] \| Laboratorio Teuto Brasilero [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	60.00%

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 35
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=64825282&loc=d3e32787-111569

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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