FINANCIAL INSTRUMENTS - Schedule of Amortized Cost and Fair Value of Cash Equivalents, Investments, and Restricted Cash and Investments with Contractual Maturities (Details) $ in Thousands	Sep. 27, 2020 USD ($)
Cost
Due in one year or less	$ 5,325,959
Due after one year through five years	783,076
Due in more than five years	41,194
Debt securities, cost	6,150,229
Estimated Fair Value
Due in one year or less	5,327,267
Due after one year through five years	786,135
Due in more than five years	41,355
Total	$ 6,154,757