Financial Instruments - Schedule of Investments in Available-for-Sale Debt Securities by Significant Investment Category and Related Consolidated Balance Sheet Classification (Details) - USD ($) $ in Millions	Jan. 23, 2026	Apr. 25, 2025
Schedule of Investments [Line Items]
Cost	$ 7,256	$ 6,826
Unrealized Gains	54	26
Unrealized Losses	(55)	(100)
Fair Value	7,255	6,752
Investments
Schedule of Investments [Line Items]
Fair Value	7,221	6,719
Other Assets
Schedule of Investments [Line Items]
Fair Value	34	33
Level 2
Schedule of Investments [Line Items]
Cost	6,772	6,373
Unrealized Gains	53	26
Unrealized Losses	(49)	(91)
Fair Value	6,776	6,308
Level 2 | Investments
Schedule of Investments [Line Items]
Fair Value	6,776	6,308
Level 2 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
U.S. government and agency securities | Level 1
Schedule of Investments [Line Items]
Cost	449	417
Unrealized Gains	0	0
Unrealized Losses	(4)	(7)
Fair Value	445	410
U.S. government and agency securities | Level 1 | Investments
Schedule of Investments [Line Items]
Fair Value	445	410
U.S. government and agency securities | Level 1 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
U.S. government and agency securities | Level 2
Schedule of Investments [Line Items]
Cost	870	835
Unrealized Gains	0	0
Unrealized Losses	(11)	(20)
Fair Value	860	814
U.S. government and agency securities | Level 2 | Investments
Schedule of Investments [Line Items]
Fair Value	860	814
U.S. government and agency securities | Level 2 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
Corporate debt securities | Level 2
Schedule of Investments [Line Items]
Cost	3,905	3,540
Unrealized Gains	37	17
Unrealized Losses	(12)	(36)
Fair Value	3,929	3,521
Corporate debt securities | Level 2 | Investments
Schedule of Investments [Line Items]
Fair Value	3,929	3,521
Corporate debt securities | Level 2 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
Mortgage-backed securities | Level 2
Schedule of Investments [Line Items]
Cost	813	948
Unrealized Gains	10	4
Unrealized Losses	(20)	(29)
Fair Value	804	923
Mortgage-backed securities | Level 2 | Investments
Schedule of Investments [Line Items]
Fair Value	804	923
Mortgage-backed securities | Level 2 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
Non-U.S. government and agency securities | Level 2
Schedule of Investments [Line Items]
Cost	25	6
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	25	6
Non-U.S. government and agency securities | Level 2 | Investments
Schedule of Investments [Line Items]
Fair Value	25	6
Non-U.S. government and agency securities | Level 2 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
Other asset-backed securities | Level 2
Schedule of Investments [Line Items]
Cost	1,158	1,044
Unrealized Gains	6	5
Unrealized Losses	(6)	(6)
Fair Value	1,158	1,044
Other asset-backed securities | Level 2 | Investments
Schedule of Investments [Line Items]
Fair Value	1,158	1,044
Other asset-backed securities | Level 2 | Other Assets
Schedule of Investments [Line Items]
Fair Value	0	0
Auction rate securities | Level 3
Schedule of Investments [Line Items]
Cost	36	36
Unrealized Gains	0	0
Unrealized Losses	(2)	(3)
Fair Value	34	33
Auction rate securities | Level 3 | Investments
Schedule of Investments [Line Items]
Fair Value	0	0
Auction rate securities | Level 3 | Other Assets
Schedule of Investments [Line Items]
Fair Value	$ 34	$ 33