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Balance Sheet and Other Details (Tables) | 6 Months Ended
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Jan. 29, 2022
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
|  | January 29, 2022 |  | July 31, 2021
Cash and cash equivalents |  | $ | 6,731 |  |  | $ | 9,175 |
Restricted cash included in other current assets |  | 11 |  |  | 14 |
Restricted cash included in other assets |  | 750 |  |  | 753 |
Total cash, cash equivalents, and restricted cash |  | $ | 7,492 |  |  | $ | 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
|  | January 29, 2022 |  | July 31, 2021
Cash and cash equivalents |  | $ | 6,731 |  |  | $ | 9,175 |
Restricted cash included in other current assets |  | 11 |  |  | 14 |
Restricted cash included in other assets |  | 750 |  |  | 753 |
Total cash, cash equivalents, and restricted cash |  | $ | 7,492 |  |  | $ | 9,942 |
Inventories | Inventories
|  | January 29, 2022 |  | July 31, 2021
Raw materials |  | $ | 1,284 |  |  | $ | 801 |
Work in process |  | 50 |  |  | 54 |
Finished goods: |  |  |  |
Deferred cost of sales |  | 80 |  |  | 97 |
Manufactured finished goods |  | 522 |  |  | 422 |
Total finished goods |  | 602 |  |  | 519 |
Service-related spares |  | 116 |  |  | 174 |
Demonstration systems |  | 7 |  |  | 11 |
Total |  | $ | 2,059 |  |  | $ | 1,559 |
Property and Equipment, Net | Property and Equipment, Net
|  | January 29, 2022 |  | July 31, 2021
Gross property and equipment: |  |  |  |
Land, buildings, and building and leasehold improvements |  | $ | 4,293 |  |  | $ | 4,304 |
Computer equipment and related software |  | 852 |  |  | 858 |
Production, engineering, and other equipment |  | 4,879 |  |  | 5,106 |
Operating lease assets |  | 245 |  |  | 273 |
Furniture, fixtures and other |  | 353 |  |  | 377 |
Total gross property and equipment |  | 10,622 |  |  | 10,918 |
Less: accumulated depreciation and amortization |  | (8,482) |  |  | (8,580) |
Total |  | $ | 2,140 |  |  | $ | 2,338 |
Remaining Performance Obligations | Remaining Performance Obligations
|  | January 29, 2022 |  | July 31, 2021
Product |  | $ | 13,532 |  |  | $ | 13,270 |
Service |  | 16,986 |  |  | 17,623 |
Total |  | $ | 30,518 |  |  | $ | 30,893 |
Current |  | $ | 16,310 |  |  | $ | 16,289 |
Noncurrent |  | 14,208 |  |  | 14,604 |
Total |  | $ | 30,518 |  |  | $ | 30,893 |
Deferred Revenue | Deferred Revenue
|  | January 29, 2022 |  | July 31, 2021
Product |  | $ | 9,767 |  |  | $ | 9,416 |
Service |  | 12,546 |  |  | 12,748 |
Total |  | $ | 22,313 |  |  | $ | 22,164 |
Reported as: |  |  |  |
Current |  | $ | 12,268 |  |  | $ | 12,148 |
Noncurrent |  | 10,045 |  |  | 10,016 |
Total |  | $ | 22,313 |  |  | $ | 22,164 |

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