Investments and Fair Value Measurements - Summary of Short-term Investments (Details) - USD ($) $ in Millions	Jan. 03, 2021	Dec. 29, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,285	$ 1,261
Gross Unrealized Gains	1	5
Estimated Fair Value	1,286	1,266
Debt securities in government-sponsored entities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10	18
Gross Unrealized Gains	0	0
Estimated Fair Value	10	18
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	445	627
Gross Unrealized Gains	0	3
Estimated Fair Value	445	630
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	830	616
Gross Unrealized Gains	1	2
Estimated Fair Value	$ 831	$ 618

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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