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RESTRUCTURING CHARGES - Reconciliation of Beginning and Ended Restructuring Reserve Balances (Details) - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2024
Oct. 31, 2023
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance $ 16.8 $ 12.3
Restructuring costs 5.4 18.7
Costs paid or otherwise settled (17.3) (14.2)
Restructuring reserve, ending balance 4.9 16.8
Employee Separation Costs    
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance 16.4 11.2
Restructuring costs (1.4) 11.8
Costs paid or otherwise settled (10.2) (6.6)
Restructuring reserve, ending balance 4.8 16.4
Other Costs    
Restructuring Reserve [Roll Forward]    
Restructuring reserve, beginning balance 0.4 1.1
Restructuring costs 6.8 6.9
Costs paid or otherwise settled (7.1) (7.6)
Restructuring reserve, ending balance $ 0.1 $ 0.4