v3.10.0.1

Recent Accounting Pronouncements (Additional Information) (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Oct. 27, 2018 | Oct. 28, 2017 | Jul. 29, 2018 | Jul. 28, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Revenue, total | $ 13,072 | $ 12,136 |  |
Benefit for provision for income taxes | (360) | $ (568) |  |
Increase in retained earnings | 3,169 |  | $ 5,130 | $ 1,233
Total contract assets | 5,500 |  |  |
Total contract assets noncurrent | 177 |  |  |
Total capitalized contract acquisition costs | 673 |  |  | 644
Capitalized contract acquisition costs, current | 380 |  |  |
Capitalized contract acquisition costs, noncurrent | 293 |  |  |
Accounting Standards Update 2014-09 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Increase in retained earnings |  |  | 2,333 |
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Revenue, total | 276 |  |  |
Benefit for provision for income taxes | 152 |  |  |
Increase in retained earnings |  |  | $ 2,300 |
Software and Service Agreements |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Total contract assets | 447 |  |  | $ 122
Total contract assets, current | $ 270 |  |  |

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