GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 741.2	$ 838.4
Accumulated Amortization	(438.3)	(459.8)
Total	$ 302.9	$ 378.5
Intangible assets weighted average life	11 years	11 years
Customer contracts and relationships
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 714.1	$ 801.6
Accumulated Amortization	(413.2)	(442.1)
Total	300.9	359.6
Trademarks and trade names
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	12.1	21.4
Accumulated Amortization	(11.1)	(15.4)
Total	1.0	6.1
Contract rights and other
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	15.0	15.3
Accumulated Amortization	(14.0)	(2.4)
Total	$ 1.1	$ 12.9