GOODWILL - Changes in Carrying Amount of Goodwill (Details) $ in Millions	9 Months Ended
Jul. 31, 2025 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 1,655.5
Segment recast	0.0
Goodwill acquired / Measurement period adjustment	(10.0)
Currency translation	50.3
Ending balance	1,695.8
Global Industrial Packaging
Goodwill [Roll Forward]
Beginning balance	1,148.3
Segment recast	(1,148.3)
Goodwill acquired / Measurement period adjustment	0.0
Currency translation	0.0
Ending balance	0.0
Paper Packaging & Services
Goodwill [Roll Forward]
Beginning balance	507.2
Segment recast	(507.2)
Goodwill acquired / Measurement period adjustment	0.0
Currency translation	0.0
Ending balance	0.0
Customized Polymer Solutions
Goodwill [Roll Forward]
Beginning balance	0.0
Segment recast	607.9
Goodwill acquired / Measurement period adjustment	(10.0)
Currency translation	28.2
Ending balance	626.1
Durable Metal Solutions
Goodwill [Roll Forward]
Beginning balance	0.0
Segment recast	401.8
Goodwill acquired / Measurement period adjustment	0.0
Currency translation	14.3
Ending balance	416.1
Sustainable Fiber Solutions
Goodwill [Roll Forward]
Beginning balance	0.0
Segment recast	475.9
Goodwill acquired / Measurement period adjustment	0.0
Currency translation	0.0
Ending balance	475.9
Integrated Solutions
Goodwill [Roll Forward]
Beginning balance	0.0
Segment recast	169.9
Goodwill acquired / Measurement period adjustment	0.0
Currency translation	7.8
Ending balance	$ 177.7

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Amount of increase (decrease) from measurement period adjustment of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

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Amount of increase (decrease) from transfer into (out of) asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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