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Goodwill and Purchased Intangible Assets - Schedule of Estimated Future Amortization Expense of Purchased Intangible Assets (Details)
$ in Millions
Apr. 30, 2022
USD ($)
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]  
2022 (remaining three months) $ 238
2023 902
2024 774
2025 404
2026 61
Thereafter $ 2