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Derivative Financial Instruments (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended 70 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2015
Apr. 30, 2022
Apr. 30, 2020
Oct. 31, 2021
Derivative Financial Instruments (Textual) [Abstract]                
Collateral pledged $ 77.9   $ 77.9     $ 54.6    
Cumulative net mark-to-market valuation of certain derivative positions recognized in unallocated derivative gains (losses)     (23.6)     37.3    
Interest expense – net (39.7) $ (40.3) (78.8) $ (83.4)        
Other income (expense) – net (0.8) (2.7) $ (0.3) (13.8)        
Commodity contracts                
Derivative Financial Instruments (Textual) [Abstract]                
Derivative instrument maturity     1 year          
Foreign currency exchange contracts                
Derivative Financial Instruments (Textual) [Abstract]                
Derivative instrument maturity     1 year          
Interest rate contracts                
Derivative Financial Instruments (Textual) [Abstract]                
Deferred pre-tax net gain (loss) included in accumulated other comprehensive loss             $ (239.8)  
Deferred Gain (Loss) on Cash Flow Hedges Included in Accumulated Other Comprehensive Income or Loss (207.4)   $ (207.4)     (214.2)    
Tax impact related to deferred losses and gains on cash flow hedges included in accumulated other comprehensive loss $ 48.6   48.6     $ 50.3    
Effective portion of the hedge loss reclassified to interest expense over the next twelve months     $ (13.5)          
Interest rate swap | Fair Value Hedging [Member]                
Derivative Financial Instruments (Textual) [Abstract]                
Amortization of deferred gain on early termination agreement   $ 1.9   $ 4.0       $ 53.5
Cash [Member] | Interest rate swap | Fair Value Hedging [Member]                
Derivative Financial Instruments (Textual) [Abstract]                
Gain (loss) on early termination agreement         $ 58.1      
Accrued and Prepaid Interest, Net [Member] | Interest rate swap | Fair Value Hedging [Member]                
Derivative Financial Instruments (Textual) [Abstract]                
Gain (loss) on early termination agreement         $ 4.6