Income Taxes (Schedule of Income Tax Provision Related to Income from Continuing Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Current:
Federal	$ 165.6	$ 6.9	$ 14.6
State	0.5	1.8	1.3
Foreign	23.0	19.5	15.5
Total Current	189.1	28.2	31.4
Deferred:
Federal	16.1	(3.9)	(3.9)
State	1.0	1.4	(0.7)
Foreign	(14.2)	(4.6)	(6.1)
Total Deferred	2.9	(7.1)	(10.7)
Income tax provision	$ 192.0	$ 21.1	$ 20.7