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FINANCIAL INSTRUMENTS - Schedule of Cash, Cash Equivalents, Investments and Restricted Cash and Investments Unrealized Loss Positions (Details) $ in Thousands | Sep. 27, 2020 USD ($)
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Fair Value |
Unrealized Losses Less than 12 Months | $ 603,485
Unrealized Losses 12 Months or Greater | 7,953
Total | 611,438
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (420)
Unrealized Losses 12 Months or Greater | (583)
Total | (1,003)
U.S. Treasury and agencies |
Fair Value |
Unrealized losses less than 12 months, available for sale | 74,231
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | 74,231
Gross Unrealized Loss |
Unrealized losses less than 12 months, available for sale | (1)
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | (1)
Mutual funds |
Fair Value |
Unrealized losses less than 12 months, trading | 0
Unrealized losses 12 months or greater, trading | 7,953
Total, trading | 7,953
Gross Unrealized Loss |
Unrealized losses less than 12 months, trading | 0
Unrealized losses 12 months or greater, trading | (583)
Total, trading | (583)
Foreign government bonds |
Fair Value |
Unrealized losses less than 12 months, available for sale | 46,218
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | 46,218
Gross Unrealized Loss |
Unrealized losses less than 12 months, available for sale | (12)
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | (12)
Corporate notes and bonds |
Fair Value |
Unrealized losses less than 12 months, available for sale | 478,124
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | 478,124
Gross Unrealized Loss |
Unrealized losses less than 12 months, available for sale | (392)
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | (392)
Mortgage backed securities — residential |
Fair Value |
Unrealized losses less than 12 months, available for sale | 4,912
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | 4,912
Gross Unrealized Loss |
Unrealized losses less than 12 months, available for sale | (15)
Unrealized losses 12 months or greater, available for sale | 0
Total, available for sale | $ (15)

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