Income Taxes (Narrative) (Details) (USD $)	3 Months Ended
	Jan. 26, 2013	Jan. 28, 2012
Current Income Tax Expense (Benefit), Continuing Operations
Income tax expense (benefit)	$ 88,244,000	$ (3,207,000)
Change in California deferred tax asset valuation allowance as a result of the passage of Proposition 39	78,200,000
Reinstatement of federal research and development tax credit	5,700,000
Income Tax Contingency
IRS proposed adjustment to net operating loss carryforwards	317,400,000
Amount of unrecognized tax benefits that could affect the effect tax rate	89,400,000
Upper range of estimated potential decreases in underlying uncertain tax positions	25,000,000
Lower range of estimated potential decreases in underlying uncertain tax positions	$ 0