Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	May 30, 2014		May 31, 2013
Cash flows from operating activities:
Net income	$ 135,573		$ 141,663
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	155,289		157,702
Stock-based compensation	165,798		163,066
Deferred income taxes	4,632		18,661
Asset Impairment Charges	0		23,838
Unrealized gains on investments	623		3,894
Other non-cash items	4,375		(9,191)
Excess Tax Benefit from Share-based Compensation, Operating Activities	(4,875)		0
Changes in operating assets and liabilities, net of acquired assets and assumed liabilities:
Trade receivables, net	69,337		147,839
Prepaid expenses and other current assets	(23,977)		(18,651)
Trade payables	(7,238)		3,437
Accrued expenses	12,071		(46,482)
Accrued restructuring	(4,082)		(5,209)
Income taxes payable	11,891		(30,132)
Deferred revenue	99,792		70,744
Net cash provided by operating activities	619,209		621,179
Cash flows from investing activities:
Purchases of short-term investments	(895,758)		(1,358,634)
Maturities of short-term investments	128,661		196,201
Proceeds from sales of short-term investments	587,384		641,203
Acquisitions, net of cash acquired	0		(96,356)
Purchases of property and equipment	(56,591)		(106,439)
Purchases of long-term investments and other assets	(6,946)		(59,768)
Proceeds from sale of long-term investments	896		3,240
Net cash used for investing activities	(242,354)		(780,553)
Cash flows from financing activities:
Purchases of treasury stock	(350,000)		(300,000)
Proceeds from issuance of treasury stock	109,143		356,771
Cost of issuance of treasury stock	(150,095)		(83,550)
Excess Tax Benefit from Share-based Compensation, Financing Activities	4,875		0
Proceeds from debt and capital lease obligations	0		25,703
Repayment of debt and capital lease obligations	(8,059)		(9,804)
Debt issuance costs	0		(357)
Net cash (used for) provided by financing activities	(394,136)		(11,237)
Effect of foreign currency exchange rates on cash and cash equivalents	(255)		(8,031)
Net (decrease) increase in cash and cash equivalents	(17,536)		(178,642)
Cash and cash equivalents at beginning of period	834,556	[1]	1,425,052
Cash and cash equivalents at end of period	817,020		1,246,410
Supplemental disclosures:
Cash paid for income taxes, net of refunds	27,532		68,507
Cash paid for interest	32,130		32,676
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.