Employee Benefits (Schedule of Components of Net Periodic Pension Costs) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Service cost	$ 2.3	$ 2.0	$ 6.9	$ 6.1
Interest cost	1.2	1.1	3.7	3.2
Expected return on plan assets	(1.6)	(1.5)	(4.9)	(4.5)
Recognized net actuarial loss	0.4	0.2	1.2	0.7
Net periodic pension cost	$ 2.3	$ 1.8	$ 6.9	$ 5.5