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Intangible Assets and Goodwill - Schedule of Intangible Assets and Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Oct. 03, 2021 | Sep. 27, 2020 | Jan. 02, 2022 | Jan. 03, 2021
Intangible assets with indefinite lives: |  |  |  |
Indefinite lived intangible assets |  |  | $ 16,822 | $ 19,044
Total intangible assets - net |  |  | 46,392 | 53,402
Trademarks |  |  |  |
Intangible assets with indefinite lives: |  |  |  |
Indefinite lived intangible assets |  |  | 6,985 | 7,195
Purchased in-process research and development |  |  |  |
Intangible assets with indefinite lives: |  |  |  |
Indefinite lived intangible assets |  |  | 9,837 | 11,849
Patents And Trademarks |  |  |  |
Intangible assets with definite lives: |  |  |  |
Finite lived intangible assets gross |  |  | 38,572 | 39,990
Less accumulated amortization |  |  | (20,088) | (17,618)
Finite lived intangible assets net |  |  | 18,484 | 22,372
Customer relationships and other intangible assets |  |  |  |
Intangible assets with definite lives: |  |  |  |
Finite lived intangible assets gross |  |  | 23,011 | 22,898
Less accumulated amortization |  |  | (11,925) | (10,912)
Finite lived intangible assets net |  |  | 11,086 | $ 11,986
In Process Research and Development |  |  |  |
Intangible assets with indefinite lives: |  |  |  |
Impairment of intangible assets, excluding goodwill | $ 900 | $ 100 |  |
Auris Health | In Process Research and Development |  |  |  |
Intangible assets with indefinite lives: |  |  |  |
Impairment of intangible assets, excluding goodwill |  |  | $ 900 |

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