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Goodwill and Intangible Assets (Amortization Expense Expected to be Recognized) (Details)
$ in Millions
Apr. 30, 2022
USD ($)
Goodwill and Intangible Assets [Abstract]  
Remainder of fiscal 2023 $ 64
Fiscal 2024 60
Fiscal 2025 22
Fiscal 2026 21
Fiscal 2027 18
Fiscal 2028 12
Thereafter $ 56