Cash, Cash Equivalents and Short-Term Investments (Details 1) $ in Thousands	Dec. 02, 2016 USD ($) securities	Nov. 27, 2015 USD ($) securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | securities	1,052	914
Available-for-sale Securities, Amortized Cost Basis	$ 4,769,536	$ 3,992,616
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	40,493	31,518
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(81)	(234)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	2,031,478	2,030,372
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (11,658)	$ (6,869)
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure [Abstract]
Number of securities in a continuous unrealized loss position for more than twelve months | securities	23	15
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	$ 39,162	$ 30,218
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(80)	(233)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,282,076	1,112,883
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(9,474)	(5,377)
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	1,331	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	54,063	60,057
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(189)	(147)
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	0	1,268
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(8)
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	0	1,300
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	114,810	35,594
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(525)	(50)
US Treasury Bond Securities [Member]
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	580,529	820,570
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,470)	(1,287)
Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	802,680	524,189
Available-for-sale Securities, Amortized Cost Basis	802,680	524,190
Cash Equivalents [Member] | Time deposits
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	17,920	13,461
Available-for-sale Securities, Amortized Cost Basis	17,920	13,461
Cash Equivalents [Member] | U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure		26,400
Available-for-sale Securities, Amortized Cost Basis		26,400
Cash Equivalents [Member] | Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,301	1,849
Available-for-sale Securities, Amortized Cost Basis	$ 1,301	$ 1,850