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Derivative Financial Instruments and Hedging Activities (Details Textual) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Jan. 31, 2025
Apr. 30, 2024
Derivative Financial Instruments (Textual) [Abstract]    
Maximum term of outstanding derivative contracts 24 months 24 months
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months $ 12  
Derivative, Net Liability Position, Aggregate Fair Value 0 $ 1
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Debt Instrument, Face Amount 491 497
Foreign Exchange Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Notional Amount $ 461 $ 566