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Employee Benefit Plans - Summary of Share-Based Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
May 01, 2021 | Apr. 25, 2020 | May 01, 2021 | Apr. 25, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | $ 463 | $ 387 | $ 1,337 | $ 1,169
Income tax benefit for share-based compensation | 88 | 81 | 264 | 321
Share-based compensation expense in cost of sales |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 75 | 60 | 208 | 176
Research and development |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 184 | 148 | 522 | 440
Sales and marketing |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 140 | 125 | 402 | 371
General and administrative |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 59 | 49 | 179 | 164
Restructuring and other charges |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 5 | 5 | 26 | 18
Share-based compensation expense in operating expenses |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 388 | 327 | 1,129 | 993
Product | Share-based compensation expense in cost of sales |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | 26 | 23 | 75 | 69
Services | Share-based compensation expense in cost of sales |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total share-based compensation expense | $ 49 | $ 37 | $ 133 | $ 107

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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