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FINANCIAL INSTRUMENTS - Schedule of Cash, Cash Equivalents, Investments and Restricted Cash and Investments Unrealized Loss Positions (Details) $ in Thousands | Sep. 24, 2017 USD ($)
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Fair Value |
Unrealized Losses Less than 12 Months | $ 2,182,398
Unrealized Losses 12 Months or Greater | 4,640
Total | 2,187,038
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (5,942)
Unrealized Losses 12 Months or Greater | (37)
Total | (5,979)
U.S. Treasury and agencies |
Fair Value |
Unrealized Losses Less than 12 Months | 660,429
Unrealized Losses 12 Months or Greater | 0
Total | 660,429
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (2,671)
Unrealized Losses 12 Months or Greater | 0
Total | (2,671)
Mutual funds |
Fair Value |
Unrealized Losses Less than 12 Months | 3,122
Unrealized Losses 12 Months or Greater | 0
Total | 3,122
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (70)
Unrealized Losses 12 Months or Greater | 0
Total | (70)
Municipal notes and bonds |
Fair Value |
Unrealized Losses Less than 12 Months | 18,653
Unrealized Losses 12 Months or Greater | 0
Total | 18,653
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (21)
Unrealized Losses 12 Months or Greater | 0
Total | (21)
Government-sponsored enterprises |
Fair Value |
Unrealized Losses Less than 12 Months | 55,297
Unrealized Losses 12 Months or Greater | 0
Total | 55,297
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (322)
Unrealized Losses 12 Months or Greater | 0
Total | (322)
Foreign government bonds |
Fair Value |
Unrealized Losses Less than 12 Months | 33,729
Unrealized Losses 12 Months or Greater | 0
Total | 33,729
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (128)
Unrealized Losses 12 Months or Greater | 0
Total | (128)
Corporate notes and bonds |
Fair Value |
Unrealized Losses Less than 12 Months | 1,282,655
Unrealized Losses 12 Months or Greater | 0
Total | 1,282,655
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (2,376)
Unrealized Losses 12 Months or Greater | 0
Total | (2,376)
Mortgage backed securities — residential |
Fair Value |
Unrealized Losses Less than 12 Months | 30,210
Unrealized Losses 12 Months or Greater | 2,006
Total | 32,216
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (93)
Unrealized Losses 12 Months or Greater | (23)
Total | (116)
Mortgage backed securities — commercial |
Fair Value |
Unrealized Losses Less than 12 Months | 98,303
Unrealized Losses 12 Months or Greater | 2,634
Total | 100,937
Gross Unrealized Loss |
Unrealized Losses Less than 12 Months | (261)
Unrealized Losses 12 Months or Greater | (14)
Total | $ (275)

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