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Cash, Cash Equivalents and Short-Term Investments (Details 1) $ in Thousands | Dec. 01, 2017 USD ($) securities | Dec. 02, 2016 USD ($) securities
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | $ 5,831,289 | $ 4,769,536
Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities [Abstract] |  |
Available-for-sale securities in a continuous unrealized loss position for more than twelve months, fair value | 872,620 | 40,493
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (6,358) | (81)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 2,010,339 | 2,031,478
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | $ (7,862) | $ (11,658)
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract] |  |
Number of securities in a continuous unrealized loss position for less than twelve months | securities | 894 | 1,052
Number of securities in a continuous unrealized loss position for more than twelve months | securities | 360 | 23
Corporate Bonds And Commercial Paper [Member] |  |
Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities [Abstract] |  |
Available-for-sale securities in a continuous unrealized loss position for more than twelve months, fair value | $ 500,689 | $ 39,162
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (4,666) | (80)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 1,338,232 | 1,282,076
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (5,459) | (9,474)
Asset-backed Securities [Member] |  |
Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities [Abstract] |  |
Available-for-sale securities in a continuous unrealized loss position for more than twelve months, fair value | 32,383 | 1,331
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (210) | (1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 64,618 | 54,063
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (193) | (189)
Foreign government securities |  |
Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 2,388 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (8) | 0
Municipal securities |  |
Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities [Abstract] |  |
Available-for-sale securities in a continuous unrealized loss position for more than twelve months, fair value | 598 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (17) | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 11,805 | 114,810
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (115) | (525)
US Treasury Bond Securities [Member] |  |
Fair Value and Gross Unrealized Losses Related to Available-For-Sale Securities [Abstract] |  |
Available-for-sale securities in a continuous unrealized loss position for more than twelve months, fair value | 338,950 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (1,465) | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 593,296 | 580,529
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (2,087) | (1,470)
Cash Equivalents [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents, Fair Value Disclosure | 2,025,584 | 802,680
Available-for-sale Securities, Amortized Cost Basis | 2,025,584 | 802,680
Cash Equivalents [Member] | Corporate Bonds And Commercial Paper [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents, Fair Value Disclosure |  | 1,249
Available-for-sale Securities, Amortized Cost Basis |  | 1,249
Cash Equivalents [Member] | Time deposits |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents, Fair Value Disclosure | 18,843 | 17,920
Available-for-sale Securities, Amortized Cost Basis | $ 18,843 | 17,920
Cash Equivalents [Member] | Municipal securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cash and Cash Equivalents, Fair Value Disclosure |  | 1,301
Available-for-sale Securities, Amortized Cost Basis |  | $ 1,301

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