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Employee Benefits (Schedule of Weighted-Average Asset Allocations by Asset Category) (Details) | Oct. 31, 2012 | Oct. 31, 2011 | Oct. 31, 2010
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 100.00% | 100.00% | 100.00%
Cash and cash equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 3.00% | 2.10% | 4.10%
Corporate common stock [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 16.50% | 19.00% | 21.30%
Equity mutual funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 43.20% | 41.10% | 37.90%
Real estate funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 5.20% | 5.60% | 5.00%
Bond mutual funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 32.10% | 32.20% | 31.70%

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- Definition Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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