v3.10.0.1

Goodwill (Tables) | 9 Months Ended
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Jul. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Allocation and Changes in the Carrying Amount of Goodwill | Goodwill allocated to the Company's reportable segments as of July 31, 2018 and the change in the respective carrying amounts during the nine months then ended were as follows:
| Hybrid IT |  | Intelligent Edge |  | Financial Services |  | Total
| In millions
Balance at October 31, 2017 | $ | 15,454 |  |  | $ | 1,918 |  |  | $ | 144 |  |  | $ | 17,516 |
Goodwill acquired during the period | 102 |  |  | 3 |  |  | — |  |  | 105 |
Changes due to foreign currency | (1 | ) |  | — |  |  | — |  |  | (1 | )
Goodwill adjustments | 6 |  |  | — |  |  | — |  |  | 6 |
Balance at July 31, 2018 | $ | 15,561 |  |  | $ | 1,921 |  |  | $ | 144 |  |  | $ | 17,626 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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