Recently issued accounting standards	12 Months Ended
Oct. 31, 2011
Recently issued accounting standards [Abstract]
Recently issued accounting standards	Note 2 — Recently issued accounting standards In October 2009, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance on multiple-deliverable revenue arrangements that addresses the unit of accounting for arrangements involving multiple deliverables. The guidance also addresses how arrangement consideration should be allocated to separate units of accounting, when applicable, and expands the disclosure requirements for multiple-deliverable arrangements. We adopted this standard on November 1, 2010, and there were no material changes to our revenue deferral amounts. In December 2010, the FASB issued guidance that provides requirements over pro forma revenue and earnings disclosures related to business combinations. This guidance will require disclosure of revenue and earnings of the combined business as if the combination occurred at the start of the prior annual reporting period only. This guidance is effective beginning in 2012, and is not expected to have a material impact on the consolidated financial statements. In May 2011, the FASB clarified the guidance around fair value measurements and disclosures. The guidance requires the disclosure of quantitative information about unobservable inputs used, a description of the valuation processes used, and a qualitative discussion around the sensitivity of the measurements. It will be effective beginning in the second quarter of 2012. We do not expect the adoption will have a significant impact on our consolidated financial statements. In June 2011, the FASB issued an Accounting Standards Update (ASU) that amends current comprehensive income guidance. This ASU eliminates the option to present the components of other comprehensive income as part of the statement of shareholders’ equity. Instead, comprehensive income must be reported in either a single continuous statement of comprehensive income which contains two sections, net income and other comprehensive income, or in two separate but consecutive statements. This guidance will be effective beginning in 2013 and is not expected to impact our consolidated financial statements, as it only results in a change in the format of presentation. In September 2011, the FASB issued guidance amending the way companies test for goodwill impairment. Companies will have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, companies determine it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then performing the two-step impairment test is unnecessary. This guidance is effective for interim and annual periods beginning after December 15, 2011, with early adoption permitted. We do not expect the adoption will have a significant impact on our consolidated financial statements.

Recently issued accounting standards

12 Months Ended

Oct. 31, 2011

Recently issued accounting standards [Abstract]

Note 2 — Recently issued accounting standards

In October 2009, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance on multiple-deliverable revenue arrangements that addresses the unit of accounting for arrangements involving multiple deliverables. The guidance also addresses how arrangement consideration should be allocated to separate units of accounting, when applicable, and expands the disclosure requirements for multiple-deliverable arrangements. We adopted this standard on November 1, 2010, and there were no material changes to our revenue deferral amounts.

In December 2010, the FASB issued guidance that provides requirements over pro forma revenue and earnings disclosures related to business combinations. This guidance will require disclosure of revenue and earnings of the combined business as if the combination occurred at the start of the prior annual reporting period only. This guidance is effective beginning in 2012, and is not expected to have a material impact on the consolidated financial statements.

In May 2011, the FASB clarified the guidance around fair value measurements and disclosures. The guidance requires the disclosure of quantitative information about unobservable inputs used, a description of the valuation processes used, and a qualitative discussion around the sensitivity of the measurements. It will be effective beginning in the second quarter of 2012. We do not expect the adoption will have a significant impact on our consolidated financial statements.

In June 2011, the FASB issued an Accounting Standards Update (ASU) that amends current comprehensive income guidance. This ASU eliminates the option to present the components of other comprehensive income as part of the statement of shareholders’ equity. Instead, comprehensive income must be reported in either a single continuous statement of comprehensive income which contains two sections, net income and other comprehensive income, or in two separate but consecutive statements. This guidance will be effective beginning in 2013 and is not expected to impact our consolidated financial statements, as it only results in a change in the format of presentation.

In September 2011, the FASB issued guidance amending the way companies test for goodwill impairment. Companies will have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events or circumstances, companies determine it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then performing the two-step impairment test is unnecessary. This guidance is effective for interim and annual periods beginning after December 15, 2011, with early adoption permitted. We do not expect the adoption will have a significant impact on our consolidated financial statements.