Recent Accounting Pronouncements	6 Months Ended
Apr. 30, 2013
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Adopted Accounting Guidance In December 2011, the FASB issued guidance to enhance a financial statement user’s ability to understand the effects of netting arrangements on an entity’s financial statements, including financial instruments and derivative instruments that are either offset or subject to an enforceable master netting or similar arrangement. The scope of this guidance includes derivatives, sale and repurchase agreements and reverse sale and repurchase agreements, and securities borrowing and securities lending arrangements. This guidance also includes enhanced disclosure requirements, including both gross and net information about instruments and transactions eligible for offset or subject to an agreement similar to a master netting arrangement. The provisions will be applied retrospectively for interim and annual periods beginning on or after January 1, 2013. The adoption of this accounting guidance did not have a material impact on our financial position, results of operations or disclosures.

Recent Accounting Pronouncements

Recently Adopted Accounting Guidance

In December 2011, the FASB issued guidance to enhance a financial statement user’s ability to understand the effects of netting arrangements on an entity’s financial statements, including financial instruments and derivative instruments that are either offset or subject to an enforceable master netting or similar arrangement. The scope of this guidance includes derivatives, sale and repurchase agreements and reverse sale and repurchase agreements, and securities borrowing and securities lending arrangements. This guidance also includes enhanced disclosure requirements, including both gross and net information about instruments and transactions eligible for offset or subject to an agreement similar to a master netting arrangement. The provisions will be applied retrospectively for interim and annual periods beginning on or after January 1, 2013. The adoption of this accounting guidance did not have a material impact on our financial position, results of operations or disclosures.