v3.8.0.1

Discontinued Operations - Schedule of Discontinued Operations, Financial Results (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net loss from discontinued operations | $ (72) | $ (134) | $ (118) | $ (118)
Separation and merger transactions | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net revenue | 0 | 3,124 | 0 | 7,629
Cost of revenue | 0 | 2,201 | 0 | 5,620
Expenses | 0 | 1,165 | 51 | 2,241
Interest and other, net(3) | 72 | 3 | 68 | 3
Loss from discontinued operations before taxes | (72) | (245) | (119) | (235)
Benefit for taxes | 0 | 111 | 1 | 117
Net loss from discontinued operations | $ (72) | $ (134) | $ (118) | $ (118)

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