Financial Instruments - Schedule of Amortized Cost and Fair Value of Cash Equivalents, Short-Term Investments, and Restricted Cash and Investments with Contractual Maturities (Details) $ in Thousands	Jun. 27, 2021 USD ($)
Cost
Due in one year or less	$ 4,198,483
Due after one year through five years	866,243
Due in more than five years	39,283
Debt securities, Cost	5,104,009
Fair Value
Due in one year or less	4,198,992
Due after one year through five years	867,562
Due in more than five years	39,330
Estimated fair value due, Total	$ 5,105,884