BUSINESS SEGMENT INFORMATION - Properties, Plants and Equipment, Net by Geographical Area (Details) - USD ($) $ in Millions	Jul. 31, 2019	Oct. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	$ 5,552.4	$ 3,194.8
Total properties, plants and equipment, net	1,678.0	1,191.9
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total properties, plants and equipment, net	1,295.3	796.3
Europe, Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Total properties, plants and equipment, net	265.6	276.9
Asia Pacific and Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total properties, plants and equipment, net	117.1	118.7
Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	5,313.7	2,938.4
Operating Segments | Rigid Industrial Packaging & Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	2,106.4	1,963.0
Operating Segments | Paper Packaging & Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	2,707.9	474.3
Operating Segments | Flexible Products & Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	153.3	153.9
Operating Segments | Land Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	346.1	347.2
Corporate and other
Revenues from External Customers and Long-Lived Assets [Line Items]
Assets	$ 238.7	$ 256.4