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%