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Employee Benefits (Schedule of Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets) (Details) - USD ($)
$ in Millions
Oct. 31, 2015
Oct. 31, 2014
Oct. 31, 2013
Compensation and Retirement Disclosure [Abstract]      
Projected benefit obligation $ 117.3 $ 101.1 $ 84.2
Accumulated benefit obligation 102.6 88.6 73.6
Fair value of plan assets $ 79.5 $ 72.2 $ 59.3