Stock-Based Compensation (Schedule Of Stock Option Activity Under Equity Compensation Plans) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 31, 2009
Stock-Based Compensation [Abstract]
Shares, Beginning balance	71,666	89,647	35,036
Shares, Assumed under the Foundry acquisition			92,160
Shares, Granted	243	1,920	5,118
Shares, Exercised	(16,814)	(14,210)	(36,022)
Shares, Forfeited or expired	(4,330)	(5,691)	(6,645)
Shares, Ending balance	50,765	71,666	89,647
Shares, Vested and expected to vest	50,123
Shares, Exercisable and vested	47,824
Weighted-Average Exercise Price, Beginning Balance	$ 4.82	$ 5.04	$ 8.05
Weighted-Average Exercise Price, Assumed under the Foundry acquisition			$ 3.24
Weighted-Average Exercise Price, Granted	$ 5.47	$ 6.76	$ 4.29
Weighted-Average Exercise Price, Exercised	$ 3.48	$ 2.95	$ 3.03
Weighted-Average Exercise Price, Forfeited or expired	$ 9.03	$ 13.68	$ 6.16
Weighted-Average Exercise Price, Ending Balance	$ 4.91	$ 4.82	$ 5.04
Weighted-Average Exercise Price, Vested and expected to vest	$ 4.92
Weighted-Average Exercise Price, Exercisable and vested	$ 4.91
Weighted-Average Remaining Contractual Term (in years), Beginning Balance	2.58	3.17	4.17
Weighted-Average Remaining Contractual Term (in years), Ending Balance	1.98	2.58	3.17
Weighted-Average Remaining Contractual Term (in years), Vested and expected to vest	1.96
Weighted-Average Remaining Contractual Term (in years), Exercisable and vested	1.84
Aggregate Intrinsic Value, Beginning Balance	$ 146,199	$ 380,991	$ 701
Aggregate Intrinsic Value, Ending Balance	35,494	146,199	380,991
Aggregate Intrinsic Value, Vested and expected to vest	35,168
Aggregate Intrinsic Value, Exercisable and vested	$ 33,938