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Financial Instruments and Fair Value Measurements - Summary of Investments at Cost or Amortized Cost (Detail) - USD ($)
$ in Millions
Apr. 26, 2024
Apr. 28, 2023
Schedule of Available-for-sale Securities [Line Items]    
Cost or amortized cost $ 2,560 $ 1,643
U.S. Treasury and Government Debt Securities    
Schedule of Available-for-sale Securities [Line Items]    
Cost or amortized cost 1,349 754
Money market funds    
Schedule of Available-for-sale Securities [Line Items]    
Cost or amortized cost 1,161 794
Certificates of Deposit    
Schedule of Available-for-sale Securities [Line Items]    
Cost or amortized cost 12 59
Mutual Funds    
Schedule of Available-for-sale Securities [Line Items]    
Cost or amortized cost $ 38 $ 36