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Goodwill and Purchased Intangible Assets, Net - Future Amortization Expense Related to Purchased Intangible Assets (Detail) - USD ($)
$ in Millions
Jan. 28, 2022
Apr. 30, 2021
Acquired Finite Lived Intangible Assets [Line Items]    
Net Assets $ 150 $ 101
Intangible Assets Subject to Amortization    
Acquired Finite Lived Intangible Assets [Line Items]    
2022 (remainder) 14  
2023 45  
2024 34  
2025 35  
2026 18  
2027 4  
Net Assets $ 150