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GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Changes in Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Goodwill [Roll Forward]
Goodwill beginning balance	$ 1,693.0	$ 1,464.5
Goodwill acquired	278.5	235.5
Goodwill allocated to divestitures	(26.1)	(22.5)
Currency translation	8.3	15.5
Goodwill ending balance	1,953.7	1,693.0
Global Industrial Packaging
Goodwill [Roll Forward]
Goodwill beginning balance	887.6	696.6
Goodwill acquired	278.5	175.4
Goodwill allocated to divestitures	(26.1)	0.0
Currency translation	8.3	15.6
Goodwill ending balance	1,148.3	887.6
Paper Packaging & Services
Goodwill [Roll Forward]
Goodwill beginning balance	805.4	767.9
Goodwill acquired	0.0	60.1
Goodwill allocated to divestitures	0.0	(22.5)
Currency translation	0.0	(0.1)
Goodwill ending balance	$ 805.4	$ 805.4

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