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Leases - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Jul. 26, 2025 | Jul. 27, 2024 | Jul. 29, 2023
Leases [Abstract] |  |  |
Weighted-average remaining lease term (in years) | 5 years 8 months 12 days | 4 years 10 months 24 days |
Weighted-average discount rate | 4.10% | 4.00% |
Sales-type lease term, on average | 4 years |  |
Interest income, lease receivables | $ 66 | $ 65 | $ 51
Operating lease income | $ 37 | $ 58 | $ 73
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] | Total revenue |  |

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- Definition Term of lessor's sales-type lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-3 + Details
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- Definition Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479016/842-30-45-3 + Details
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