v3.25.2
Financial Instruments - Investments by Category and Related Balance Sheet Classification (Details) - USD ($)
$ in Millions
Apr. 25, 2025
Apr. 26, 2024
Schedule of Investments [Line Items]    
Cost $ 6,826 $ 6,968
Unrealized Gains 26 7
Unrealized Losses (100) (252)
Fair Value 6,752 6,723
Investments    
Schedule of Investments [Line Items]    
Fair Value 6,719 6,690
Other Assets    
Schedule of Investments [Line Items]    
Fair Value 33 33
Level 1 | U.S. government and agency securities    
Schedule of Investments [Line Items]    
Cost 417 494
Unrealized Gains 0 0
Unrealized Losses (7) (22)
Fair Value 410 472
Level 1 | U.S. government and agency securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 410 472
Level 1 | U.S. government and agency securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 2    
Schedule of Investments [Line Items]    
Cost 6,373 6,438
Unrealized Gains 26 7
Unrealized Losses (91) (227)
Fair Value 6,308 6,218
Level 2 | Investments    
Schedule of Investments [Line Items]    
Fair Value 6,308 6,218
Level 2 | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 2 | U.S. government and agency securities    
Schedule of Investments [Line Items]    
Cost 835 847
Unrealized Gains 0 0
Unrealized Losses (20) (43)
Fair Value 814 804
Level 2 | U.S. government and agency securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 814 804
Level 2 | U.S. government and agency securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 2 | Corporate debt securities    
Schedule of Investments [Line Items]    
Cost 3,540 3,953
Unrealized Gains 17 4
Unrealized Losses (36) (125)
Fair Value 3,521 3,832
Level 2 | Corporate debt securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 3,521 3,832
Level 2 | Corporate debt securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 2 | Mortgage-backed securities    
Schedule of Investments [Line Items]    
Cost 948 692
Unrealized Gains 4 1
Unrealized Losses (29) (50)
Fair Value 923 643
Level 2 | Mortgage-backed securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 923 643
Level 2 | Mortgage-backed securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 2 | Non-U.S. government and agency securities    
Schedule of Investments [Line Items]    
Cost 6 5
Unrealized Gains 0 0
Unrealized Losses 0 0
Fair Value 6 5
Level 2 | Non-U.S. government and agency securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 6 5
Level 2 | Non-U.S. government and agency securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 2 | Other asset-backed securities    
Schedule of Investments [Line Items]    
Cost 1,044 941
Unrealized Gains 5 2
Unrealized Losses (6) (9)
Fair Value 1,044 934
Level 2 | Other asset-backed securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 1,044 934
Level 2 | Other asset-backed securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 3 | Auction rate securities    
Schedule of Investments [Line Items]    
Cost 36 36
Unrealized Gains 0 0
Unrealized Losses (3) (3)
Fair Value 33 33
Level 3 | Auction rate securities | Investments    
Schedule of Investments [Line Items]    
Fair Value 0 0
Level 3 | Auction rate securities | Other Assets    
Schedule of Investments [Line Items]    
Fair Value $ 33 $ 33