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Summary of Significant Accounting Policies - Schedule of Cumulative Effect Adjustments (Details) - USD ($) $ in Millions | Jan. 03, 2021 | Dec. 29, 2019 | Dec. 30, 2018 | Jan. 01, 2018 | Dec. 31, 2017
--- | --- | --- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment | $ 63,278 | $ 59,471 | $ 59,752 |  | $ 60,160
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment |  |  |  |  | (486)
Retained Earnings |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment | $ 113,890 | $ 110,659 | $ 106,216 |  | 101,793
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment |  |  |  | $ (254) | $ (254)
ASU 2014-09 - Revenue from Contracts with Customers | Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment |  |  |  | (47) |
ASU 2016-01 - Financial Instruments | Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment |  |  |  | 232 |
ASU 2016-16 - Income Taxes: Intra-Entity Transfers | Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Cumulative Effect of Adjustment |  |  |  | $ (439) |

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