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Retirement, Pension and Other Postretirement Plans - Allocation of Pension Plan Assets (Detail) | Oct. 31, 2016 | Oct. 31, 2015
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Pension Plan, United States [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 100.00% | 100.00%
Pension Plan, United States [Member] | Equity Securities [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 15.00% | 19.00%
Pension Plan, United States [Member] | Debt Securities [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 31.00% | 29.00%
Pension Plan, United States [Member] | Pooled Investment Funds [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 53.00% | 51.00%
Pension Plan, United States [Member] | Other [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 1.00% | 1.00%
Pension Plan, International [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 100.00% | 100.00%
Pension Plan, International [Member] | Insurance Contracts [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 59.00% | 54.00%
Pension Plan, International [Member] | Pooled Investment Funds [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 39.00% | 46.00%
Pension Plan, International [Member] | Other [Member] |  |
Allocation of pension plan assets |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 2.00% |

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- Definition Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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