Cash, Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands	Aug. 31, 2018	Dec. 01, 2017
Schedule of Available-for-sale Securities
Amortized Cost	$ 4,965,165	$ 5,831,289
Unrealized Gains	616	2,705
Unrealized Losses	(21,311)	(14,220)
Estimated Fair Value, Total cash, cash equivalents and short-term investments	4,944,470	5,819,774
Cash and cash equivalents
Schedule of Available-for-sale Securities
Amortized Cost	1,747,145	2,306,072
Unrealized Gains	0	0
Unrealized Losses	(1)	0
Cash and Cash Equivalents, Fair Value Disclosure	1,747,144	2,306,072
Cash
Schedule of Available-for-sale Securities
Amortized Cost	386,927	280,488
Unrealized Gains	0	0
Unrealized Losses	0	0
Cash and Cash Equivalents, Fair Value Disclosure	386,927	280,488
Cash equivalents
Schedule of Available-for-sale Securities
Amortized Cost	1,360,218	2,025,584
Unrealized Gains	0	0
Unrealized Losses	(1)	0
Cash and Cash Equivalents, Fair Value Disclosure	1,360,217	2,025,584
Cash equivalents \| Corporate Debt Securities
Schedule of Available-for-sale Securities
Amortized Cost	24,012
Unrealized Gains	0
Unrealized Losses	(1)
Cash and Cash Equivalents, Fair Value Disclosure	24,011
Cash equivalents \| Money Market Mutual Funds
Schedule of Available-for-sale Securities
Amortized Cost	1,302,801	2,006,741
Unrealized Gains	0	0
Unrealized Losses	0	0
Cash and Cash Equivalents, Fair Value Disclosure	1,302,801	2,006,741
Cash equivalents \| Time deposits
Schedule of Available-for-sale Securities
Amortized Cost	33,405	18,843
Unrealized Gains	0	0
Unrealized Losses	0	0
Cash and Cash Equivalents, Fair Value Disclosure	33,405	18,843
Short-term fixed income securities
Schedule of Available-for-sale Securities
Amortized Cost	3,218,020	3,525,217
Unrealized Gains	616	2,705
Unrealized Losses	(21,310)	(14,220)
Estimated Fair Value, short-term investments	3,197,326	3,513,702
Short-term fixed income securities \| Asset-backed Securities
Schedule of Available-for-sale Securities
Amortized Cost	77,393	98,403
Unrealized Gains	2	1
Unrealized Losses	(385)	(403)
Estimated Fair Value, short-term investments	77,010	98,001
Short-term fixed income securities \| Corporate Debt Securities
Schedule of Available-for-sale Securities
Amortized Cost	2,471,739	2,461,691
Unrealized Gains	614	2,694
Unrealized Losses	(20,590)	(10,125)
Estimated Fair Value, short-term investments	2,451,763	2,454,260
Short-term fixed income securities \| Foreign Government Securities
Schedule of Available-for-sale Securities
Amortized Cost	4,178	2,396
Unrealized Gains	0	0
Unrealized Losses	(29)	(8)
Estimated Fair Value, short-term investments	4,149	2,388
Short-term fixed income securities \| Municipal Securities
Schedule of Available-for-sale Securities
Amortized Cost	19,223	21,189
Unrealized Gains	0	8
Unrealized Losses	(306)	(132)
Estimated Fair Value, short-term investments	18,917	21,065
Short-term fixed income securities \| U.S. Treasury Securities
Schedule of Available-for-sale Securities
Amortized Cost	645,487	941,538
Unrealized Gains	0	2
Unrealized Losses	0	(3,552)
Estimated Fair Value, short-term investments	$ 645,487	$ 937,988

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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