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Acquisition, Divestitures, Licensing Arrangements, Collaborative Arrangements and Privately Held Investment - Sale of Hospira Infusion Systems Net Assets to ICU Medical, Inc. (EH) (Details) - USD ($) $ in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 03, 2017 | Aug. 31, 2018 | Sep. 30, 2018 | Oct. 01, 2017 | Sep. 30, 2018 | Oct. 01, 2017 | Jan. 05, 2017 | Oct. 06, 2016
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net unrealized gains related to shares held | [1] |  |  | $ 40 |  | $ 370 |  |  |  |  |
Gain (loss) on sale of HIS net assets | [2] |  |  | 2 | $ 12 | 1 | [3] | $ (52) | [3] |  |
ICU Medical [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net unrealized gains related to shares held |  |  |  | 24 |  | 229 |  |  |  |  |
HIS [Member] | Disposed of by Sale [Member] | ICU Medical [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  |  |  |  |  |  | $ 900 | $ 1,000
Shares received in disposition (in shares) |  | 3,200,000 |  |  |  |  |  |  |  |  |
Value of shares received from disposition |  | $ 428 |  |  |  |  |  |  |  |  |
Shares sold (in shares) |  |  | 700,000 |  |  |  |  |  |  |  |
Realized gain on sale of shares |  |  | $ 50 |  |  |  |  |  |  |  |
Promissory note |  | 75 |  |  |  |  |  |  |  |  |
Cash received from disposition |  |  |  |  |  |  |  | 200 |  |  |
Contingent consideration |  | $ 225 |  |  |  |  |  |  |  |  |
Gain (loss) on sale of HIS net assets |  |  |  | $ 2 | $ 12 | $ 1 |  | $ (52) |  |  |
Administrative service period |  | 24 months |  |  |  |  |  |  |  |  |
Maximum manufacturing service period |  | 5 years |  |  |  |  |  |  |  |  |
ICU Medical [Member] | ICU Medical [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  | 12.00% |  | 12.00% |  |  |  |  |
Long-term Investments [Member] | ICU Medical [Member] |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares currently held (in shares) |  |  |  | 2,500,000 |  |  |  |  |  |  |
[1] | The third quarter of 2018 includes $8 million of unrealized net gains in Other (income)/deductions––net reflecting the adoption of a new accounting standard in the first quarter of 2018 and $32 million of unrealized gains on other equity securities. The first nine months of 2018 includes $344 million of unrealized net gains in Other (income)/deductions––net reflecting the adoption of a new accounting standard in the first quarter of 2018 and $26 million of unrealized gains on other equity securities. For additional information, see Note 1B and Note 4.
[2] | Represents adjustments to amounts previously recorded in 2016 to write down the HIS net assets to fair value less costs to sell related to the sale of HIS net assets to ICU Medical on February 3, 2017. For additional information, see Note 2B.
[3] | Amounts may not add due to rounding.

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