Employee Benefits (Schedule of Reconciliation of Prepaid (Accrued) Pension Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Prepaid (Accrued) Pension Cost [Roll Forward]
Accrued pension cost at prior fiscal year end	$ (5.7)	$ (6.8)	$ (8.9)
Net periodic benefit cost	8.3	8.9	6.7
Contributions made during the year	10.0	10.0	8.8
Accrued pension cost at fiscal year end	$ (4.0)	$ (5.7)	$ (6.8)