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Segment Information - Reconciliation of Segment Assets to Consolidated Assets (Details) - USD ($) $ in Millions	Oct. 31, 2018	Oct. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 34,622	$ 32,913
Total segments | Personal Systems
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	13,447	12,156
Total segments | Printing
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	13,706	10,548
Total segments | Corporate Investments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	5	3
Corporate and unallocated assets
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 7,464	$ 10,206

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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