CONSOLIDATION OF VARIABLE INTEREST ENTITIES - Total Net Assets of Paper Packing JV (Details) - USD ($) $ in Millions	Jul. 31, 2020	Oct. 31, 2019
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 98.5	$ 77.3
Trade accounts receivable, less allowance of $0.0 in 2020	624.5	664.2
Properties, plants and equipment, net	1,588.8	1,690.3
Total assets	5,593.8	5,426.7
Accounts payable	436.0	435.2
Allowance of trade accounts receivable	8.4	6.8
Held by special purpose entities
Variable Interest Entity [Line Items]
Total assets	51.3	$ 51.9
Paper Packaging JV | Held by special purpose entities
Variable Interest Entity [Line Items]
Cash and cash equivalents	0.9
Trade accounts receivable, less allowance of $0.0 in 2020	4.6
Inventories	6.2
Properties, plants and equipment, net	35.1
Other assets	0.6
Total assets	47.4
Accounts payable	4.2
Other liabilities	1.3
Liabilities	5.5
Allowance of trade accounts receivable	$ 0.0