v3.10.0.1

Retirement and Post-Retirement Benefit Plans (Tables) | 9 Months Ended
--- | ---
Jul. 31, 2018
Retirement Benefits [Abstract] |
Summary of Net Benefit Cost | The Company's net pension benefit cost for defined benefit plans recognized in the Condensed Consolidated Statements of Earnings for the three and nine months ended July 31, 2018 and 2017, was as follows:
| Three months ended July 31, |  | Nine months ended July 31,
| 2018 |  | 2017 |  | 2018 |  | 2017
| In millions
Service cost | $ | 26 |  |  | $ | 36 |  |  | $ | 79 |  |  | $ | 106 |
Interest cost | 55 |  |  | 53 |  |  | 168 |  |  | 155 |
Expected return on plan assets | (139 | ) |  | (137 | ) |  | (423 | ) |  | (401 | )
Amortization and deferrals: |  |  |  |  |  |  |  |  |  |
Actuarial loss | 52 |  |  | 60 |  |  | 158 |  |  | 200 |
Prior service benefit | (4 | ) |  | (4 | ) |  | (12 | ) |  | (12 | )
Net periodic benefit (credit) cost | (10 | ) |  | 8 |  |  | (30 | ) |  | 48 |
Settlement loss | 9 |  |  | 6 |  |  | 11 |  |  | 9 |
Special termination benefits | 1 |  |  | 1 |  |  | 5 |  |  | 3 |
Plan expense allocation(1) | — |  |  | (1 | ) |  | — |  |  | (17 | )
Net benefit (credit) cost from continuing operations | — |  |  | 14 |  |  | (14 | ) |  | 43 |
Summary of net benefit (credit) cost: |  |  |  |  |  |  |
Continuing operations | — |  |  | 14 |  |  | (14 | ) |  | 43 |
Discontinued operations | — |  |  | 3 |  |  | — |  |  | 83 |
Net benefit (credit) cost | $ | — |  |  | $ | 17 |  |  | $ | (14 | ) |  | $ | 126 |
(1) | Plan expense allocation represents the net cost impact of employees of HPE covered under Everett or Seattle plans and employees of Everett or Seattle covered under HPE plans.

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration