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Financial Instruments - Available-For-Sale Securities in Continuous Unrealized Loss Position (Details) - USD ($) $ in Millions | Apr. 25, 2025 | Apr. 26, 2024
--- | --- | ---
Fair Value |  |
Less than 12 months | $ 814 | $ 838
More than 12 months | 2,993 | 4,296
Unrealized Losses |  |
Less than 12 months | (9) | (14)
More than 12 months | (91) | (238)
Corporate debt securities |  |
Fair Value |  |
Less than 12 months | 702 | 661
More than 12 months | 1,235 | 2,448
Unrealized Losses |  |
Less than 12 months | (7) | (10)
More than 12 months | (29) | (116)
U.S. government and agency securities |  |
Fair Value |  |
Less than 12 months | 110 | 177
More than 12 months | 641 | 730
Unrealized Losses |  |
Less than 12 months | (1) | (4)
More than 12 months | (25) | (61)
Mortgage-backed securities |  |
Fair Value |  |
Less than 12 months | 2 | 0
More than 12 months | 614 | 582
Unrealized Losses |  |
Less than 12 months | (1) | 0
More than 12 months | (28) | (50)
Other asset-backed securities |  |
Fair Value |  |
Less than 12 months | 0 | 0
More than 12 months | 469 | 502
Unrealized Losses |  |
Less than 12 months | 0 | 0
More than 12 months | (6) | (9)
Auction rate securities |  |
Fair Value |  |
Less than 12 months | 0 | 0
More than 12 months | 33 | 33
Unrealized Losses |  |
Less than 12 months | 0 | 0
More than 12 months | $ (3) | $ (3)

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-5 + Details
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