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Fair Value Measurements - Summary of Activity Related to Equity Investments (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 29, 2019 | Dec. 30, 2018
Other Investment Not Readily Marketable [Line Items] |  |
Business Combination, Contingent Consideration, Liability | $ 1,596 | $ 335
Equity Investment [Roll Forward] |  |
Non Current Other Assets | 5,307 | $ 4,182
Equity Securities | Equity Investments with readily determinable value |  |
Equity Investment [Roll Forward] |  |
Carrying value, beginning of period | 511 |
Changes in Fair Value Reflected in Net Income | 201 |
Sales/ Purchases/Other | 151 |
Carrying value, end of period | 863 |
Non Current Other Assets | 863 |
Equity Securities | Equity Investments without readily determinable value |  |
Equity Investment [Roll Forward] |  |
Carrying value, beginning of period | 681 |
Changes in Fair Value Reflected in Net Income | (28) |
Sales/ Purchases/Other | 46 |
Carrying value, end of period | 699 |
Non Current Other Assets | $ 699 |

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