v3.10.0.1

Comprehensive Income (Loss) (Reclassification Out of Other Comprehensive Income) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Oct. 27, 2018 | Oct. 28, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |
Revenue | $ 13,072 | $ 12,136
NET INCOME | 3,549 | 2,394
Total amounts reclassified out of AOCI | (5) | 45
Reclassification out of Accumulated Other Comprehensive Income | Net unrealized gains and losses on available-for-sale investments |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |
Other income (loss), net | (6) | 33
Reclassification out of Accumulated Other Comprehensive Income | Net unrealized gains and losses on cash flow hedging instruments |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |
Operating expenses | (1) | 10
NET INCOME | 0 | 13
Reclassification out of Accumulated Other Comprehensive Income | Cumulative translation adjustment and actuarial gains and losses |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |
Other income (loss), net | 1 | 0
Operating expenses | 0 | 1
Service |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |
Revenue | 3,182 | 3,082
Service | Reclassification out of Accumulated Other Comprehensive Income | Net unrealized gains and losses on cash flow hedging instruments |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |
Revenue | 1 | 0
Cost of sales | $ 0 | $ 3

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