Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Defined contribution plans related to employee investment and savings primarily in the U.S.
Defined contribution plans employer contributions and costs (primarily in the U.S.)	$ 12.2	$ 12.4	$ 12.5
Pensions
Defined Benefit Plan Disclosure
Expenses related to defined benefit plans	5.7	9.7	6.4
Health Care and Life Insurance
Defined Benefit Plan Disclosure
Expenses related to defined benefit plans	$ 2.4	$ 3.7	$ 8.4