SEGMENT INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Revenues
Total Revenues	$ 2,094.2	$ 2,028.2	$ 6,182.0	$ 6,003.5
Operating profit
Total operating profit	37.4	138.9	192.8	303.1
Income from unconsolidated affiliates	1.8	1.2	4.7	3.0
Interest expense	(21.2)	(20.9)	(63.1)	(61.8)
Income before income taxes	18.0	119.3	134.4	244.2
Change in fair value of contingent consideration			36.0	(45.6)
RavenVolt
Operating profit
Change in fair value of contingent consideration			36.0
Business & Industry
Revenues
Total Revenues	1,010.6	1,021.4	3,033.4	3,056.4
Manufacturing & Distribution
Revenues
Total Revenues	377.1	381.9	1,166.6	1,135.5
Education
Revenues
Total Revenues	228.3	219.1	674.0	650.7
Aviation
Revenues
Total Revenues	268.4	238.0	756.1	677.5
Technical Solutions
Revenues
Total Revenues	209.7	167.9	551.9	483.4
Operating Segments | Business & Industry
Operating profit
Total operating profit	77.8	78.9	235.0	231.1
Operating Segments | Manufacturing & Distribution
Operating profit
Total operating profit	40.9	38.1	125.9	119.7
Operating Segments | Education
Operating profit
Total operating profit	18.0	15.9	42.3	39.5
Operating Segments | Aviation
Operating profit
Total operating profit	17.8	11.7	40.6	43.6
Operating Segments | Technical Solutions
Operating profit
Total operating profit	17.9	11.4	41.4	28.8
Corporate
Operating profit
Total operating profit	(130.6)	(15.9)	(285.0)	(156.7)
Employee retention credit		22.4		22.4
Corporate | RavenVolt
Operating profit
Change in fair value of contingent consideration	36.0	(37.2)	36.0	(45.6)
Segment Reconciling Items
Operating profit
Income from unconsolidated affiliates	(1.8)	(1.2)	(4.7)	(3.0)
Adjustment for tax deductions for energy efficient government buildings, included in Technical Solutions	$ (2.6)	$ 0.0	$ (2.6)	$ (0.1)