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Employee Benefits (Schedule of Weighted-Average Asset Allocations by Asset Category) (Details) | Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013
--- | --- | --- | ---
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 | 2.20% | 3.00% | 5.30%
Corporate common stock [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 9.00% | 9.00% | 14.60%
Equity mutual funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 52.00% | 52.10% | 47.50%
Real estate funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 3.30% | 4.10% | 3.80%
Bond mutual funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Asset Allocation | 33.50% | 31.80% | 28.80%

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