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Balance Sheet and Other Details (Tables) | 3 Months Ended
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Oct. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Cash, Cash Equivalents, and Restricted Cash | The following tables provide details of selected balance sheet and other items (in millions): Cash, Cash Equivalents, and Restricted Cash
|  | October 30, 2021 |  | July 31, 2021
Cash and cash equivalents |  | $ | 7,619 |  |  | $ | 9,175 |
Restricted cash included in other current assets |  | 10 |  |  | 14 |
Restricted cash included in other assets |  | 750 |  |  | 753 |
Total cash, cash equivalents, and restricted cash |  | $ | 8,379 |  |  | $ | 9,942 |
Cash, Cash Equivalents, and Restricted Cash | The following tables provide details of selected balance sheet and other items (in millions): Cash, Cash Equivalents, and Restricted Cash
|  | October 30, 2021 |  | July 31, 2021
Cash and cash equivalents |  | $ | 7,619 |  |  | $ | 9,175 |
Restricted cash included in other current assets |  | 10 |  |  | 14 |
Restricted cash included in other assets |  | 750 |  |  | 753 |
Total cash, cash equivalents, and restricted cash |  | $ | 8,379 |  |  | $ | 9,942 |
Inventories | Inventories
|  | October 30, 2021 |  | July 31, 2021
Raw materials |  | $ | 1,090 |  |  | $ | 801 |
Work in process |  | 41 |  |  | 54 |
Finished goods: |  |  |  |
Deferred cost of sales |  | 85 |  |  | 97 |
Manufactured finished goods |  | 465 |  |  | 422 |
Total finished goods |  | 550 |  |  | 519 |
Service-related spares |  | 142 |  |  | 174 |
Demonstration systems |  | 9 |  |  | 11 |
Total |  | $ | 1,832 |  |  | $ | 1,559 |
Property and Equipment, Net | Property and Equipment, Net
|  | October 30, 2021 |  | July 31, 2021
Gross property and equipment: |  |  |  |
Land, buildings, and building and leasehold improvements |  | $ | 4,310 |  |  | $ | 4,304 |
Computer equipment and related software |  | 861 |  |  | 858 |
Production, engineering, and other equipment |  | 5,023 |  |  | 5,106 |
Operating lease assets |  | 250 |  |  | 273 |
Furniture, fixtures and other |  | 377 |  |  | 377 |
Total gross property and equipment |  | 10,821 |  |  | 10,918 |
Less: accumulated depreciation and amortization |  | (8,583) |  |  | (8,580) |
Total |  | $ | 2,238 |  |  | $ | 2,338 |
Remaining Performance Obligations | Remaining Performance Obligations
|  | October 30, 2021 |  | July 31, 2021
Product |  | $ | 13,384 |  |  | $ | 13,270 |
Service |  | 16,751 |  |  | 17,623 |
Total |  | $ | 30,135 |  |  | $ | 30,893 |
Current |  | $ | 15,941 |  |  | $ | 16,289 |
Noncurrent |  | 14,194 |  |  | 14,604 |
Total |  | $ | 30,135 |  |  | $ | 30,893 |
Deferred Revenue | Deferred Revenue
|  | October 30, 2021 |  | July 31, 2021
Product |  | $ | 9,681 |  |  | $ | 9,416 |
Service |  | 12,391 |  |  | 12,748 |
Total |  | $ | 22,072 |  |  | $ | 22,164 |
Reported as: |  |  |  |
Current |  | $ | 12,017 |  |  | $ | 12,148 |
Noncurrent |  | 10,055 |  |  | 10,016 |
Total |  | $ | 22,072 |  |  | $ | 22,164 |

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