Income Taxes (Details 1) (USD $)	12 Months Ended
	Nov. 29, 2013	Nov. 30, 2012
Deferred tax assets:
Acquired technology	$ 14,379,000	$ 3,890,000
Reserves and accruals	67,753,000	71,888,000
Deferred revenue	10,218,000	9,941,000
Unrealized losses on investments	9,793,000	17,482,000
Stock-based compensation	64,244,000	85,179,000
Net operating loss of acquired companies	9,222,000	16,257,000
Credit carryforwards	43,175,000	31,172,000
Capitalized expenses	188,000	4,023,000
Other	6,788,000	5,165,000
Total gross deferred tax assets	225,760,000	244,997,000
Deferred Tax Assets, Valuation Allowance	(21,493,000)	(28,247,000)
Total deferred tax assets	204,267,000	216,750,000
Deferred tax liabilities:
Depreciation and amortization	(89,611,000)	(81,034,000)
Undistributed earnings of foreign subsidiaries	(211,417,000)	(187,528,000)
Acquired intangible assets	(176,626,000)	(153,757,000)
Total deferred tax liabilities	(477,654,000)	(422,319,000)
Net deferred tax liabilities	(273,387,000)	(205,569,000)
Aggregate changes in total gross amount of unrecognized tax benefits [Abstract]
Beginning balance	160,468,000	163,607,000
Gross increases in unrecognized tax benefits - prior year tax positions	20,244,000	1,038,000
Gross increases in unrecognized tax benefits - current year tax positions	16,777,000	23,771,000
Settlements with taxing authorities	(55,851,000)	(1,754,000)
Lapse of statute of limitations	(4,066,000)	(25,387,000)
Foreign exchange gains and losses	(1,474,000)	(807,000)
Ending balance	136,098,000	160,468,000
Combined amount of accrued interest and penalties related to tax positions	$ 11,400,000