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Acquisitions, Sale of Hospira Infusion Systems Net Assets, Collaborative Arrangement and Equity-Method Investments - AstraZeneca (Details) - USD ($) $ in Millions |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 22, 2016 | Apr. 01, 2018 | Jul. 02, 2017 | Oct. 01, 2017 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill | [1] |  |  |  | $ 56,078 | $ 54,449
AstraZeneca [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Initial payment |  | $ 552 |  |  |  |
Additional payment made for a purchase price adjustment |  |  |  | $ 3 |  |
Milestone payment |  |  |  | $ 50 |  |
Deferred payment |  | 175 |  |  |  |
Maximum amount of potential milestone payments |  | 75 |  |  |  |
Maximum amount of potential sales-related payments |  | $ 600 |  |  |  |
Term of royalty payments |  | 10 years |  |  |  |
Consideration transferred in business acquisition |  | $ 1,045 |  |  |  |
Payments for acquisitions, cash portion |  | 555 |  |  |  |
Contingent consideration assumed |  | 490 |  |  |  |
Identifiable intangible assets |  | 879 |  |  |  |
Other current assets |  | 92 |  |  |  |
Goodwill |  | 92 |  |  |  |
Deferred tax liabilities |  | 17 |  |  |  |
In Process Research and Development [Member] | AstraZeneca [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  | 219 |  |  |  |
Developed Technology Rights [Member] | AstraZeneca [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  | 660 |  |  |  |
Minimum [Member] | AstraZeneca [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Undiscounted royalty payments |  | 250 |  |  |  |
Maximum [Member] | AstraZeneca [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Undiscounted royalty payments |  | $ 425 |  |  |  |
Forecast [Member] | AstraZeneca [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Milestone payment |  |  | $ 125 |  |  |
[1] | Amounts may not add due to rounding.

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