Income Taxes	6 Months Ended
May 03, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In general, the Company’s provision for income taxes differs from tax computed at the U.S. federal statutory tax rate of 35% due to state taxes, the effect of non-U.S. operations, non-deductible stock-based compensation expense and adjustments to unrecognized tax benefits. The effective tax rates for the three and six months ended May 3, 2014, were higher than the federal statutory rate of 35% primarily due to a goodwill impairment charge of $83.4 million, which is non-deductible for tax purposes, and an increase in certain unrecognized tax benefits, partially offset by an increase of earnings in foreign jurisdictions taxed at rates lower than the U.S. federal statutory tax rate. The effective tax rate for the three months ended April 27, 2013, was lower than the federal statutory rate of 35% primarily due to a discrete benefit from reserve releases resulting from audit settlements. In addition, the effective tax rate for the six months ended April 27, 2013, was higher than the federal statutory tax rate of 35% primarily due to a charge of $78.2 million to reduce our previously recognized California deferred tax assets as a result of a change in California tax law. This charge was partially offset by the effect of change in foreign earnings, discrete benefits from reserve releases resulting from audit settlements, and an increase in the federal research and development tax credit that was reinstated on January 2, 2013, for calendar year 2013 and made retroactive to January 1, 2012. The total amount of net unrecognized tax benefits of $81.3 million as of May 3, 2014, would affect the Company’s effective tax rate, if recognized. The timing of the closure of audits is highly uncertain and it is reasonably possible that the balance of unrecognized tax benefits could change during the remainder of fiscal year 2014. The IRS and other tax authorities regularly examine the Company’s income tax returns. The IRS is currently examining fiscal years 2009 and 2010. In addition, the Company is in negotiations with foreign tax authorities to obtain correlative relief on transfer pricing adjustments previously settled with the IRS. The Company believes that reserves for unrecognized tax benefits are adequate for all open tax years. The timing of income tax examinations, as well as the amounts and timing of related settlements, if any, are highly uncertain. The Company believes that before the end of fiscal year 2014, it is reasonably possible that either certain audits will conclude or the statutes of limitations relating to certain income tax examination periods will expire, or both. After the Company reaches settlement with the tax authorities, the Company expects to record a corresponding adjustment to our unrecognized tax benefits. Taking into consideration the inherent uncertainty as to settlement terms, the timing of payments and the impact of such settlements on other uncertain tax positions, the Company estimates the range of potential decreases in underlying uncertain tax positions is between $0 and $5.0 million in the next 12 months. The Company believes that sufficient positive evidence exists from historical operations and projections of taxable income in future years to conclude that it is more likely than not that the Company will realize its deferred tax assets except for certain California deferred tax assets and capital loss carryforwards. Accordingly, the Company applies a valuation allowance to the California deferred tax assets due to the change in California law in 2012 and to capital loss carryforwards due to the limited carryforward periods of these tax assets.

Income Taxes

In general, the Company’s provision for income taxes differs from tax computed at the U.S. federal statutory tax rate of 35% due to state taxes, the effect of non-U.S. operations, non-deductible stock-based compensation expense and adjustments to unrecognized tax benefits. The effective tax rates for the three and six months ended May 3, 2014, were higher than the federal statutory rate of 35% primarily due to a goodwill impairment charge of $83.4 million, which is non-deductible for tax purposes, and an increase in certain unrecognized tax benefits, partially offset by an increase of earnings in foreign jurisdictions taxed at rates lower than the U.S. federal statutory tax rate.

The effective tax rate for the three months ended April 27, 2013, was lower than the federal statutory rate of 35% primarily due to a discrete benefit from reserve releases resulting from audit settlements. In addition, the effective tax rate for the six months ended April 27, 2013, was higher than the federal statutory tax rate of 35% primarily due to a charge of $78.2 million to reduce our previously recognized California deferred tax assets as a result of a change in California tax law. This charge was partially offset by the effect of change in foreign earnings, discrete benefits from reserve releases resulting from audit settlements, and an increase in the federal research and development tax credit that was reinstated on January 2, 2013, for calendar year 2013 and made retroactive to January 1, 2012.

The total amount of net unrecognized tax benefits of $81.3 million as of May 3, 2014, would affect the Company’s effective tax rate, if recognized. The timing of the closure of audits is highly uncertain and it is reasonably possible that the balance of unrecognized tax benefits could change during the remainder of fiscal year 2014.

The IRS and other tax authorities regularly examine the Company’s income tax returns. The IRS is currently examining fiscal years 2009 and 2010. In addition, the Company is in negotiations with foreign tax authorities to obtain correlative relief on transfer pricing adjustments previously settled with the IRS. The Company believes that reserves for unrecognized tax benefits are adequate for all open tax years. The timing of income tax examinations, as well as the amounts and timing of related settlements, if any, are highly uncertain. The Company believes that before the end of fiscal year 2014, it is reasonably possible that either certain audits will conclude or the statutes of limitations relating to certain income tax examination periods will expire, or both. After the Company reaches settlement with the tax authorities, the Company expects to record a corresponding adjustment to our unrecognized tax benefits. Taking into consideration the inherent uncertainty as to settlement terms, the timing of payments and the impact of such settlements on other uncertain tax positions, the Company estimates the range of potential decreases in underlying uncertain tax positions is between $0 and $5.0 million in the next 12 months.

The Company believes that sufficient positive evidence exists from historical operations and projections of taxable income in future years to conclude that it is more likely than not that the Company will realize its deferred tax assets except for certain California deferred tax assets and capital loss carryforwards. Accordingly, the Company applies a valuation allowance to the California deferred tax assets due to the change in California law in 2012 and to capital loss carryforwards due to the limited carryforward periods of these tax assets.