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Fair Value Measurements - Summary of Activity Related to Equity Investments (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Oct. 03, 2021 | Jan. 03, 2021
Equity Investment [Roll Forward] |  |
Non Current Other Assets | $ 6,870 | $ 6,562
Equity Securities |  |
Equity Investment [Roll Forward] |  |
Changes in Fair Value Reflected in Net Income | 417 |
Equity Securities | Equity Investments with readily determinable value |  |
Equity Investment [Roll Forward] |  |
Carrying value, beginning of period | 1,481 |
Changes in Fair Value Reflected in Net Income | (83) |
Sales/ Purchases/Other | 469 |
Carrying value, end of period | 1,867 |
Non Current Other Assets | 1,867 |
Equity Securities | Equity Investments without readily determinable value |  |
Equity Investment [Roll Forward] |  |
Carrying value, beginning of period | 738 |
Changes in Fair Value Reflected in Net Income | 392 |
Sales/ Purchases/Other | (545) |
Carrying value, end of period | 585 |
Non Current Other Assets | $ 585 |

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