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Employee Benefit Plans - Summary of Share-Based Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended
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Oct. 26, 2024 | Oct. 28, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | $ 827 | $ 661
Income tax benefit for share-based compensation | 174 | 143
Share-based compensation expense in cost of sales |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 131 | 103
Research and development |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 354 | 274
Sales and marketing |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 210 | 186
General and administrative |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 115 | 90
Restructuring and other charges |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 17 | 8
Share-based compensation expense in operating expenses |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 696 | 558
Product | Share-based compensation expense in cost of sales |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | 57 | 42
Services | Share-based compensation expense in cost of sales |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Total share-based compensation expense | $ 74 | $ 61

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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