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Acquisitions and Divestitures - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Apr. 04, 2021 | Mar. 29, 2020 | Jan. 03, 2021
Business Acquisition [Line Items] |  |  |
Goodwill (Note 3) | $ 35,688 |  | $ 36,393
bermekimab |  |  |
Business Acquisition [Line Items] |  |  |
Business acquisition cost |  | $ 800 |
Intangible assets |  | 800 |
Verb Surgical Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Intangible assets |  | 400 |
Goodwill (Note 3) |  | 200 |
Other assets |  | 200 |
Liabilities assumed |  | 300 |
Fair value of previously held equity investment |  | $ 400 |
Evra and Doxil |  |  |
Business Acquisition [Line Items] |  |  |
Gain (Loss) on Disposition of Assets | $ 600 |  |

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