v3.26.1
Financial Derivatives and Hedging - Schedule of Changes in Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
AOCI Attributable To Parent, Before Reclassification And Tax [Roll Forward]        
Beginning balance $ 8,239.1 $ 8,288.1 $ 8,239.1 $ 8,083.6
Ending balance 8,328.4 8,353.0 8,328.4 8,353.0
Accumulated Gain (Loss), Net, Cash Flow Hedge, Before Tax, Parent        
AOCI Attributable To Parent, Before Reclassification And Tax [Roll Forward]        
Beginning balance 18.9 31.0 23.7 59.2
Ending balance 17.0 35.8 17.0 35.8
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent        
AOCI Attributable To Parent, Before Reclassification And Tax [Roll Forward]        
Beginning balance     18.0 44.9
Amount recognized in accumulated other comprehensive income on interest rate swap contracts, gross 3.5 12.9 10.2 4.8
Amount reclassified from accumulated other comprehensive income into earnings, gross (5.4) (8.1) (16.9) (28.2)
Ending balance $ 12.9 $ 27.2 $ 12.9 $ 27.2