Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 29, 2013	Nov. 30, 2012	Dec. 02, 2011
Cash flows from operating activities:
Net income	$ 289,985	$ 832,775	$ 832,847
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	321,227	299,766	270,205
Stock-based compensation	328,987	298,502	286,103
Write-down of assets held for sale, net of gains on sale	23,151	0	0
Deferred income taxes	29,704	89,212	51,415
Unrealized (gains) losses on investments	5,665	(8,535)	(4,349)
Retirements and disposals of property and equipment	2,759	1,113	14,772
Other non-cash items	28,185	(13,658)	24,560
Excess tax benefits from stock-based compensation	(40,619)	(10,003)	(9,949)
Changes in operating assets and liabilities, net of acquired assets and assumed liabilities:
Trade receivables, net	33,649	45,166	(81,065)
Prepaid expenses and other current assets	(55,509)	4,552	(5,100)
Trade payables	7,132	(62,874)	32,203
Accrued expenses	41,828	(7,770)	(24,708)
Accrued restructuring	(6,949)	(66,047)	71,932
Income taxes payable	(58,875)	10,041	(16,661)
Deferred revenue	201,366	87,340	101,109
Net cash provided by operating activities	1,151,686	1,499,580	1,543,314
Cash flows from investing activities:
Purchases of short-term investments	(2,058,058)	(1,776,485)	(1,861,075)
Maturities of short-term investments	360,485	439,878	486,050
Proceeds from sales of short-term investments	1,449,961	1,126,886	1,148,148
Business acquisitions, net of cash acquired	(704,589)	(353,195)	(259,046)
Purchases of property and equipment	(188,358)	(271,076)	(210,294)
Proceeds from sale of property and equipment	24,260	0	0
Purchases of long-term investments, intangibles and other assets	(67,737)	(29,701)	(65,600)
Proceeds from sale of long-term investments	6,233	29,031	4,415
Net cash used for investing activities	(1,177,803)	(834,662)	(757,402)
Cash flows from financing activities:
Purchases of treasury stock	(1,100,000)	(405,000)	(695,015)
Net proceeds from issuance of treasury stock	500,776	169,274	144,754
Excess tax benefits from stock-based compensation	40,619	10,003	9,949
Proceeds from long-term debt and capital lease obligations	25,703	3,152	0
Repayment of debt and capital lease obligations	(25,879)	(9,855)	(10,046)
Debt issuance costs	(357)	(2,297)	0
Net cash used for financing activities	(559,138)	(234,723)	(550,358)
Effect of foreign currency exchange rates on cash and cash equivalents	(5,241)	5,357	4,055
Net increase (decrease) in cash and cash equivalents	(590,496)	435,552	239,609
Cash and cash equivalents at beginning of year	1,425,052	989,500	749,891
Cash and cash equivalents at end of year	834,556	1,425,052	989,500
Supplemental disclosures:
Cash paid for income taxes, net of refunds	129,701	201,125	158,373
Cash paid for interest	64,843	66,265	63,967
Non-cash investing activities:
Issuance of common stock and stock awards assumed in business acquisitions	$ 1,160	$ 4,265	$ 0