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Intangible Assets and Goodwill - Schedule of Intangible Assets and Goodwill (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 03, 2021 | Dec. 29, 2019 | Dec. 30, 2018
Finite-Lived And Indefinite-Lived Intangible Assets [Line Items] |  |  |
Research and Development in Process | $ 181 | $ 890 | $ 1,126
Intangible assets with indefinite lives: |  |  |
Indefinite lived intangible assets | 19,044 | 11,569 |
Total intangible assets - net | 53,402 | 47,643 |
Trademarks |  |  |
Intangible assets with indefinite lives: |  |  |
Indefinite lived intangible assets | 7,195 | 6,922 |
Purchased in-process research and development |  |  |
Intangible assets with indefinite lives: |  |  |
Indefinite lived intangible assets | 11,849 | 4,647 |
Patents And Trademarks |  |  |
Intangible assets with definite lives: |  |  |
Finite lived intangible assets gross | 39,990 | 36,634 |
Less accumulated amortization | 17,618 | 13,154 |
Finite lived intangible assets net | 22,372 | 23,480 |
Customer relationships and other intangible assets |  |  |
Intangible assets with definite lives: |  |  |
Finite lived intangible assets gross | 22,898 | 22,056 |
Less accumulated amortization | 10,912 | 9,462 |
Finite lived intangible assets net | 11,986 | $ 12,594 |
Momenta | In Process Research and Development |  |  |
Finite-Lived And Indefinite-Lived Intangible Assets [Line Items] |  |  |
Research and Development in Process | 6,000 |  |
bermekimab | In Process Research and Development |  |  |
Finite-Lived And Indefinite-Lived Intangible Assets [Line Items] |  |  |
Research and Development in Process | 800 |  |
Verb Surgical Inc. | In Process Research and Development |  |  |
Finite-Lived And Indefinite-Lived Intangible Assets [Line Items] |  |  |
Research and Development in Process | $ 400 |  |

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