v3.22.2.2
SEGMENT INFORMATION (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2022
Jul. 31, 2021
Revenues        
Revenues $ 1,961.4 $ 1,543.1 $ 5,795.5 $ 4,533.0
Operating profit (loss)        
Operating profit (loss) 88.7 (9.4) 269.7 150.6
Income from unconsolidated affiliates 0.8 0.5 1.8 1.4
Interest expense (11.1) (6.3) (25.2) (22.6)
Income (loss) before income taxes 78.3 (15.2) 246.3 129.4
Bucio | Settled Litigation        
Operating profit (loss)        
Litigation settlement expense   112.9 0.9 142.9
Technical Solutions | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Customer Contracts for Healthcare Technology Management        
Operating profit (loss)        
Gain on sale of assets     7.6  
Operating Segments        
Revenues        
Revenues 1,961.4 1,543.1 5,795.5 4,533.0
Operating Segments | Business & Industry        
Revenues        
Revenues 1,033.8 682.9 3,067.0 2,046.9
Operating profit (loss)        
Operating profit (loss) 82.4 71.6 242.4 216.4
Operating Segments | Manufacturing & Distribution        
Revenues        
Revenues 358.1 340.5 1,074.1 1,021.5
Operating profit (loss)        
Operating profit (loss) 38.0 38.7 120.6 118.5
Operating Segments | Education        
Revenues        
Revenues 207.5 207.0 617.6 627.8
Operating profit (loss)        
Operating profit (loss) 14.5 18.0 38.8 53.4
Operating Segments | Aviation        
Revenues        
Revenues 203.5 167.8 589.7 454.7
Operating profit (loss)        
Operating profit (loss) 9.5 10.0 28.0 18.9
Operating Segments | Technical Solutions        
Revenues        
Revenues 158.4 145.0 447.2 382.1
Operating profit (loss)        
Operating profit (loss) 15.4 14.4 42.8 30.6
Operating Segments | Government Services        
Operating profit (loss)        
Operating profit (loss) 0.1 0.0 (0.3) (0.1)
Corporate        
Operating profit (loss)        
Operating profit (loss) (70.3) (161.1) (200.6) (284.5)
Segment Reconciling Items        
Operating profit (loss)        
Income from unconsolidated affiliates (0.8) (0.5) (1.8) (1.4)
Adjustment for tax deductions for energy efficient government buildings, included in Technical Solutions $ (0.1) $ (0.5) $ (0.3) $ (1.1)