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Fair Value Measurements - Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Millions | Apr. 03, 2022 | Jan. 02, 2022
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Debt Securities, Available-for-sale [Abstract] |  |
Available-for-sale Securities - Estimated Fair Value | $ 19,583 | $ 19,727
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 10,463 | 14,487
Marketable securities | 19,925 | $ 17,121
Total cash, cash equivalents and current marketable securities, Carrying Amount | 30,408 |
Total cash, cash equivalents and current marketable securities, Unrecognized Loss | (26) |
Total cash, cash equivalents and current marketable securities, Estimated Fair Value | 30,382 |
Held-to-maturity Securities |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 10,805 |
Held-to-maturity Securities, Unrecognized Loss | (6) |
Held-to-maturity Securities - Estimated Fair Value | 10,799 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 7,459 |
Marketable securities | 3,346 |
Held-to-maturity Securities | Cash |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 3,128 |
Held-to-maturity Securities, Unrecognized Loss | 0 |
Held-to-maturity Securities - Estimated Fair Value | 3,128 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 3,128 |
Marketable securities | 0 |
Held-to-maturity Securities | Non-U.S. sovereign securities(1) |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 329 |
Held-to-maturity Securities, Unrecognized Loss | 0 |
Held-to-maturity Securities - Estimated Fair Value | 329 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 0 |
Marketable securities | 329 |
Held-to-maturity Securities | U.S. reverse repurchase agreements |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 1,449 |
Held-to-maturity Securities, Unrecognized Loss | 0 |
Held-to-maturity Securities - Estimated Fair Value | 1,449 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 1,449 |
Marketable securities | 0 |
Held-to-maturity Securities | Corporate debt securities(1) |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 3,557 |
Held-to-maturity Securities, Unrecognized Loss | (6) |
Held-to-maturity Securities - Estimated Fair Value | 3,551 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 540 |
Marketable securities | 3,017 |
Held-to-maturity Securities | Money market funds |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 1,579 |
Held-to-maturity Securities, Unrecognized Loss | 0 |
Held-to-maturity Securities - Estimated Fair Value | 1,579 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 1,579 |
Marketable securities | 0 |
Held-to-maturity Securities | Time deposits(1) |  |
Debt Securities, Held-to-maturity [Abstract] |  |
Held-to-maturity Securities - Carrying Amount | 763 |
Held-to-maturity Securities, Unrecognized Loss | 0 |
Held-to-maturity Securities - Estimated Fair Value | 763 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 763 |
Marketable securities | 0 |
Available-for-sale Securities |  |
Debt Securities, Available-for-sale [Abstract] |  |
Available-for-sale Securities - Carrying Amount | 19,603 |
Available-for-sale Securities, Unrecognized Loss | (20) |
Available-for-sale Securities - Estimated Fair Value | 19,583 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 3,004 |
Marketable securities | 16,579 |
Available-for-sale Securities | Non-U.S. sovereign securities(1) |  |
Debt Securities, Available-for-sale [Abstract] |  |
Available-for-sale Securities - Carrying Amount | 3 |
Available-for-sale Securities, Unrecognized Loss | 0 |
Available-for-sale Securities - Estimated Fair Value | 3 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 0 |
Marketable securities | 3 |
Available-for-sale Securities | Corporate debt securities(1) |  |
Debt Securities, Available-for-sale [Abstract] |  |
Available-for-sale Securities - Carrying Amount | 246 |
Available-for-sale Securities, Unrecognized Loss | (1) |
Available-for-sale Securities - Estimated Fair Value | 245 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 36 |
Marketable securities | 209 |
Available-for-sale Securities | U.S. Gov't securities |  |
Debt Securities, Available-for-sale [Abstract] |  |
Available-for-sale Securities - Carrying Amount | 19,354 |
Available-for-sale Securities, Unrecognized Loss | (19) |
Available-for-sale Securities - Estimated Fair Value | 19,335 |
Debt Securities, Available-for-sale and Held-to-maturity [Abstract] |  |
Cash and Cash Equivalents | 2,968 |
Marketable securities | $ 16,367 |

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