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Segment Information - Schedule of Net Revenue by Segment and Business Unit (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | $ 58,472 | $ 52,056 | $ 48,238
Total segments |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 58,471 | 52,057 | 48,076
Total segments | Personal Systems |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 37,661 | 33,321 | 29,946
Total segments | Personal Systems | Notebooks |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 22,547 | 19,782 | 16,982
Total segments | Personal Systems | Desktops |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 11,567 | 10,298 | 9,956
Total segments | Personal Systems | Workstations |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 2,246 | 2,042 | 1,870
Total segments | Personal Systems | Other |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 1,301 | 1,199 | 1,138
Total segments | Printing |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 20,805 | 18,728 | 18,123
Total segments | Printing | Supplies |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 13,575 | 12,524 | 11,981
Total segments | Printing | Commercial Hardware |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 4,674 | 3,792 | 3,792
Total segments | Printing | Consumer Hardware |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 2,556 | 2,412 | 2,350
Total segments | Corporate Investments |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | 5 | 8 | 7
Other |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Net revenue | $ 1 | $ (1) | $ 162

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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