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Employee Benefits (Narrative) (Details) - USD ($) | 3 Months Ended
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Jan. 31, 2019 | Jan. 31, 2018
Retirement Benefits, Description [Abstract] |  |
Defined benefit plan, contributions by employer |  | $ 0
Defined benefit plan, estimated future employer contributions in current fiscal year | $ 10,000,000 |
Expected rate of return on plan assets for determining net periodic pension cost | 8.00% |

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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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