Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 01, 2013		Mar. 02, 2012
Cash flows from operating activities:
Net income	$ 65,117,000		$ 185,209,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	76,752,000		69,861,000
Stock-based compensation	84,196,000		71,582,000
Deferred income taxes	15,176,000		63,377,000
Unrealized gains on investments	(418,000)		(3,168,000)
Other non-cash items	(4,647,000)		(6,650,000)
Excess tax benefits from stock-based compensation	0		(2,670,000)
Changes in operating assets and liabilities, net of acquired assets and assumed liabilities:
Trade receivables, net	131,511,000		152,721,000
Prepaid expenses and other current assets	(35,447,000)		(15,080,000)
Trade payables	22,477,000		(42,542,000)
Accrued expenses	(78,966,000)		(116,908,000)
Accrued restructuring	(4,047,000)		(39,057,000)
Income taxes payable	(29,187,000)		(19,051,000)
Deferred revenue	79,514,000		16,739,000
Net cash provided by operating activities	322,031,000		314,363,000
Cash flows from investing activities:
Purchases of short-term investments	(723,541,000)		(352,179,000)
Maturities of short-term investments	110,958,000		112,089,000
Proceeds from sales of short-term investments	366,808,000		207,672,000
Acquisitions, net of cash acquired	(96,356,000)		(353,184,000)
Purchases of property and equipment	(60,190,000)		(51,088,000)
Purchases of long-term investments and other assets	(46,633,000)		(5,203,000)
Proceeds from sale of long-term investments	2,840,000		4,186,000
Net cash used for investing activities	(446,114,000)		(437,707,000)
Cash flows from financing activities:
Purchases of treasury stock	(100,000,000)		(80,000,000)
Proceeds from issuance of treasury stock	88,566,000		13,366,000
Excess tax benefits from stock-based compensation	0		2,670,000
Proceeds from debt and capital lease obligations	25,703,000		0
Repayment of debt and capital lease obligations	(2,507,000)		(2,264,000)
Debt issuance costs	(357,000)		(2,297,000)
Net cash used for financing activities	11,405,000		(68,525,000)
Effect of foreign currency exchange rates on cash and cash equivalents	(5,992,000)		3,632,000
Net (decrease) increase in cash and cash equivalents	(118,670,000)		(188,237,000)
Cash and cash equivalents at beginning of period	1,425,052,000	[1]	989,500,000
Cash and cash equivalents at end of period	1,306,382,000		801,263,000
Supplemental disclosures:
Cash paid for income taxes, net of refunds	49,863,000		51,397,000
Cash paid for interest	31,960,000		33,883,000
Non-cash investing activities:
Issuance of common stock and stock awards assumed in business acquisitions	661,000		4,265,000
Property and equipment acquired under capital leases	$ 25,700,000

[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.