GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Carrying Amount of Net Other Intangible Assets by Class (Details) - USD ($) $ in Millions	Jan. 31, 2020	Oct. 31, 2019
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 951.4	$ 954.9
Accumulated Amortization	192.5	178.4
Net Intangible Assets	758.9	776.5
Net Intangible Assets	758.9	776.5
Customer relationships
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	887.4	890.6
Accumulated Amortization	162.1	150.3
Net Intangible Assets	725.3	740.3
Trademarks, patents and trade names
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	26.9	27.0
Accumulated Amortization	10.6	9.3
Net Intangible Assets	16.3	17.7
Non-compete agreements
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	2.2	2.3
Accumulated Amortization	1.2	0.7
Net Intangible Assets	1.0	1.6
Other
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	21.8	21.9
Accumulated Amortization	18.6	18.1
Net Intangible Assets	3.2	3.8
Trademarks, patents and trade names
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets	13.1	13.1
Accumulated Amortization	$ 0.0	$ 0.0