v3.6.0.2

Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Oct. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of allocation and changes in the carrying amount of goodwill | Goodwill and related changes in the carrying amount by reportable segment were as follows:
| Enterprise Group |  | Enterprise Services(1) |  | Software |  | Financial Services |  | Total
| In millions
Balance at October 31, 2014(2) | $ | 16,867 |  |  | $ | 97 |  |  | $ | 8,852 |  |  | $ | 144 |  |  | $ | 25,960 |
Goodwill acquired during the period | 1,891 |  |  | — |  |  | 96 |  |  | — |  |  | 1,987 |
Goodwill divested during the period(3) | — |  |  | — |  |  | (123 | ) |  | — |  |  | (123 | )
Changes due to foreign currency | (52 | ) |  | (5 | ) |  | — |  |  | — |  |  | (57 | )
Goodwill adjustments(4) | 6 |  |  | — |  |  | (512 | ) |  | — |  |  | (506 | )
Balance at October 31, 2015(2) | 18,712 |  |  | 92 |  |  | 8,313 |  |  | 144 |  |  | 27,261 |
Goodwill acquired during the period | 2 |  |  | — |  |  | 10 |  |  | — |  |  | 12 |
Goodwill divested during the period(5) | (3,000 | ) |  | (90 | ) |  | (234 | ) |  | — |  |  | (3,324 | )
Changes due to foreign currency | (29 | ) |  | (2 | ) |  | — |  |  | — |  |  | (31 | )
Goodwill adjustments(6) | 260 |  |  | — |  |  | — |  |  | — |  |  | 260 |
Balance at October 31, 2016(2) | $ | 15,945 |  |  | $ | — |  |  | $ | 8,089 |  |  | $ | 144 |  |  | $ | 24,178 |
_______________________________________________________________________________ (1) Goodwill related to the MphasiS Limited reporting unit, which was sold in the fourth quarter of 2016. (2) Goodwill is net of accumulated impairment losses of $13.7 billion, which were recorded prior to October 31, 2014. Of that amount, $8.0 billion relates to the Enterprise Services segment and the remaining $5.7 billion relates to the Software segment. (3) Goodwill divested as part of the divestiture of the LiveVault and iManage businesses. (4) In connection with the Separation, former Parent retained the marketing optimization software product group, a continuing business which had historically been managed by the Company and included in the Software segment. The adjustment reflects the impact of removing the related goodwill of $512 million, allocated on a relative fair value basis, from former Parent. (5) Goodwill divested as part of the H3C transaction (EG), sale of TippingPoint (Software) and sale of MphasiS (ES). (6) Primarily measurement period adjustments to provisional tax items recorded in conjunction with the Aruba acquisition.
Intangible Assets | Intangible assets are comprised of:
| As of October 31, 2016 |  | As of October 31, 2015
| Gross |  | Accumulated Amortization |  | Accumulated Impairment Loss |  | Net |  | Gross |  | Accumulated Amortization |  | Accumulated Impairment Loss |  | Net
| In millions
Customer contracts, customer lists and distribution agreements | $ | 1,394 |  |  | $ | (322 | ) |  | $ | (856 | ) |  | $ | 216 |  |  | $ | 5,109 |  |  | $ | (3,517 | ) |  | $ | (856 | ) |  | $ | 736 |
Developed and core technology and patents | 4,190 |  |  | (1,232 | ) |  | (2,138 | ) |  | 820 |  |  | 4,218 |  |  | (1,110 | ) |  | (2,138 | ) |  | 970 |
Trade name and trade marks | 178 |  |  | (21 | ) |  | (109 | ) |  | 48 |  |  | 231 |  |  | (57 | ) |  | (109 | ) |  | 65 |
In-process research and development | — |  |  | — |  |  | — |  |  | — |  |  | 159 |  |  | — |  |  | — |  |  | 159 |
Total intangible assets | $ | 5,762 |  |  | $ | (1,575 | ) |  | $ | (3,103 | ) |  | $ | 1,084 |  |  | $ | 9,717 |  |  | $ | (4,684 | ) |  | $ | (3,103 | ) |  | $ | 1,930 |
Schedule of intangible assets | As of October 31, 2016, the weighted-average remaining useful lives of the Company's finite-lived intangible assets were as follows:
Finite-Lived Intangible Assets | Weighted-Average Remaining Useful Lives
| In years
Customer contracts, customer lists and distribution agreements | 5
Developed and core technology and patents | 5
Trade name and trade marks | 7
Schedule of estimated future amortization expense related to finite-lived purchased intangible assets | As of October 31, 2016, estimated future amortization expense related to finite-lived intangible assets was as follows:
Fiscal year | In millions
2017 | $ | 339 |
2018 | 248 |
2019 | 202 |
2020 | 172 |
2021 | 55 |
Thereafter | 68 |
Total | $ | 1,084 |

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