v3.26.1
Goodwill and Other Intangible Assets - Schedule of Other Intangible Assets (Details) - USD ($)
$ in Millions
Apr. 30, 2026
Apr. 30, 2025
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 1,463 $ 1,419
Accumulated Amortization (1,125) (986)
Net Amount 338 433
Customer lists    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 1,198 1,161
Accumulated Amortization (885) (772)
Net Amount 313 389
Contract related    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 125 124
Accumulated Amortization (119) (115)
Net Amount 6 9
Internal use software    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 110 104
Accumulated Amortization (91) (69)
Net Amount 19 35
Brand names    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 30 30
Accumulated Amortization (30) (30)
Net Amount $ 0 $ 0