Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2014		Mar. 01, 2013
Cash flows from operating activities:
Net income	$ 47,046		$ 65,117
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	77,636		76,752
Stock-based compensation	82,788		84,196
Deferred income taxes	(3,341)		15,176
Unrealized gains on investments	975		(418)
Other non-cash items	(719)		(4,647)
Changes in operating assets and liabilities, net of acquired assets and assumed liabilities:
Trade receivables, net	90,492		131,511
Prepaid expenses and other current assets	(43,559)		(35,447)
Trade payables	2,412		22,477
Accrued expenses	(60,140)		(78,966)
Accrued restructuring	(528)		(4,047)
Income taxes payable	6,336		(29,187)
Deferred revenue	52,275		79,514
Net cash provided by operating activities	251,673		322,031
Cash flows from investing activities:
Purchases of short-term investments	(377,598)		(723,541)
Maturities of short-term investments	46,120		110,958
Proceeds from sales of short-term investments	269,732		366,808
Acquisitions, net of cash acquired	0		(96,356)
Purchases of property and equipment	(29,393)		(60,190)
Purchases of long-term investments and other assets	(4,062)		(46,633)
Proceeds from sale of long-term investments	779		2,840
Net cash used for investing activities	(94,422)		(446,114)
Cash flows from financing activities:
Purchases of treasury stock	(200,000)		(100,000)
Proceeds from (cost of) issuance of treasury stock	(53,776)		88,566
Proceeds from debt and capital lease obligations	0		25,703
Repayment of debt and capital lease obligations	(4,433)		(2,507)
Debt issuance costs	0		(357)
Net cash (used for) provided by financing activities	(258,209)		11,405
Effect of foreign currency exchange rates on cash and cash equivalents	318		(5,992)
Net (decrease) increase in cash and cash equivalents	(100,640)		(118,670)
Cash and cash equivalents at beginning of period	834,556	[1]	1,425,052
Cash and cash equivalents at end of period	733,916		1,306,382
Supplemental disclosures:
Cash paid for income taxes, net of refunds	16,401		49,863
Cash paid for interest	31,740		31,960
Non-cash investing activities:
Issuance of common stock and stock awards assumed in business acquisitions	$ 0		$ 661

[1] The Condensed Consolidated Balance Sheet as of November 29, 2013 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.