Assets and Liabilities Held for Sale and Disposals of Properties, Plants and Equipment, Net - Summary of Assets and Liabilities Classified as Held For Sale (Detail) - USD ($) $ in Millions	Apr. 30, 2017	Oct. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Cash and cash equivalents	$ 5.9	$ 0.0
Trade accounts receivable, less allowance	6.4	0.0
Inventories	2.3	0.0
Properties, plants and equipment, net	21.4	11.8
Goodwill	32.7	0.0
Other intangibles assets, net	17.0	0.0
Other assets	1.2	0.0
Assets held for sale	86.9	11.8
Accounts payable	2.7	0.0
Other current liabilities	4.3	0.0
Other long-term liabilities	10.3	0.0
Liabilities held for sale	$ 17.3	$ 0.0