GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
Goodwill [Roll Forward]
Beginning balance	$ 2,575.9	$ 2,491.3
Acquisitions	14.7	80.6
Foreign currency translation	3.7	4.1
Adjustments	(3.2)
Ending balance	2,591.1	2,575.9
Business & Industry
Goodwill [Roll Forward]
Beginning balance	1,095.5	1,092.7
Acquisitions	0.0	0.0
Foreign currency translation	3.2	2.6
Adjustments	0.0
Ending balance	1,098.7	1,095.5
Manufacturing & Distribution
Goodwill [Roll Forward]
Beginning balance	502.2	502.2
Acquisitions	0.0	0.0
Foreign currency translation	0.0	0.0
Adjustments	0.0
Ending balance	502.2	502.2
Aviation
Goodwill [Roll Forward]
Beginning balance	69.4	69.0
Acquisitions	0.0	0.0
Foreign currency translation	0.1	0.4
Adjustments	0.0
Ending balance	69.6	69.4
Education
Goodwill [Roll Forward]
Beginning balance	459.3	459.3
Acquisitions	0.0	0.0
Foreign currency translation	0.0	0.0
Adjustments	0.0
Ending balance	459.3	459.3
Technical Solutions
Goodwill [Roll Forward]
Beginning balance	449.6	368.0
Acquisitions	14.7	80.6
Foreign currency translation	0.3	1.1
Adjustments	(3.2)
Ending balance	$ 461.4	$ 449.6