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. 23, 2018 USD ($)
Cost
Due in one year or less	$ 3,018,982
Due after one year through five years	200,903
Due in more than five years	3,778
Debt securities, Cost	3,223,663
Estimated Fair Value
Due in one year or less	3,018,518
Due after one year through five years	199,465
Due in more than five years	3,754
Total	$ 3,221,737