Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	May 31, 2013		Jun. 01, 2012
Cash flows from operating activities:
Net income	$ 141,663		$ 409,085
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	157,702		147,035
Stock-based compensation	163,066		142,980
Asset Impairment Charges	23,838		0
Deferred income taxes	18,661		58,094
Unrealized gains on investments	3,894		(7,403)
Other non-cash items	(9,191)		(13,578)
Excess tax benefits from stock-based compensation	0		(5,354)
Changes in operating assets and liabilities, net of acquired assets and assumed liabilities:
Trade receivables, net	147,839		134,658
Prepaid expenses and other current assets	(18,651)		(32,956)
Trade payables	3,437		(43,203)
Accrued expenses	(46,482)		(43,767)
Accrued restructuring	(5,209)		(56,156)
Income taxes payable	(30,132)		12,593
Deferred revenue	70,744		60,553
Net cash provided by operating activities	621,179		762,581
Cash flows from investing activities:
Purchases of short-term investments	(1,358,634)		(910,579)
Maturities of short-term investments	196,201		281,911
Proceeds from sales of short-term investments	641,203		489,623
Acquisitions, net of cash acquired	(96,356)		(353,245)
Purchases of property and equipment	(106,439)		(111,855)
Purchases of long-term investments and other assets	(59,768)		(9,448)
Proceeds from sale of long-term investments	3,240		27,626
Net cash used for investing activities	(780,553)		(585,967)
Cash flows from financing activities:
Purchases of treasury stock	(300,000)		(305,000)
Proceeds from issuance of treasury stock	273,221		89,237
Excess tax benefits from stock-based compensation	0		5,354
Proceeds from debt and capital lease obligations	25,703		0
Repayment of debt and capital lease obligations	(9,804)		(4,554)
Debt issuance costs	(357)		(2,297)
Net cash used for financing activities	(11,237)		(217,260)
Effect of foreign currency exchange rates on cash and cash equivalents	(8,031)		2,384
Net (decrease) increase in cash and cash equivalents	(178,642)		(38,262)
Cash and cash equivalents at beginning of period	1,425,052	[1]	989,500
Cash and cash equivalents at end of period	1,246,410		951,238
Supplemental disclosures:
Cash paid for income taxes, net of refunds	68,507		96,105
Cash paid for interest	32,676		34,172
Non-cash investing activities:
Issuance of common stock and stock awards assumed in business acquisitions	$ 661		$ 4,265

[1] The Condensed Consolidated Balance Sheet as of November 30, 2012 has been derived from the audited Consolidated Financial Statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.