XML 97 R80.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Post Retirement Benefit Plans - Actuarial Assumptions Used to Measure Benefit Obligations and Pension Costs (Detail) | Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015
--- | --- | --- | ---
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |
Discount rate | 3.01% | 3.08% | 3.71%
Expected return on plan assets | 5.39% | 5.51% | 5.47%
Rate of compensation increase | 2.87% | 2.87% | 3.01%
United States |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |
Discount rate | 3.79% | 3.79% | 4.37%
Expected return on plan assets | 6.25% | 6.25% | 6.25%
Rate of compensation increase | 3.00% | 3.00% | 3.00%
Foreign Plan | Germany |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |
Discount rate | 1.72% | 1.50% | 2.10%
Rate of compensation increase | 2.75% | 2.75% | 2.75%
Foreign Plan | United Kingdom |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |
Discount rate | 2.37% | 2.44% | 3.45%
Expected return on plan assets | 6.00% | 6.00% | 6.00%
Rate of compensation increase |  |  | 3.50%
Foreign Plan | Netherlands |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |
Discount rate | 1.55% | 1.32% | 1.98%
Expected return on plan assets | 1.20% | 1.88% | 2.06%
Rate of compensation increase | 2.25% | 2.25% | 2.25%
Foreign Plan | Other International |  |  |
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |  |
Discount rate | 4.46% | 4.31% | 4.82%
Expected return on plan assets | 5.70% | 5.77% | 5.99%

X
- Definition Defined Benefit Plan Assumptions Used Calculating Benefit Obligation And Net Periodic Pension Expected Long Term Return On Assets + References No definition available. + Details
Name: | gef_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationAndNetPeriodicPensionExpectedLongTermReturnOnAssets
Namespace Prefix: | gef_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Pension plans, postretirement and other employee benefits. + References No definition available. + Details
Name: | gef_PensionPlansPostretirementAndOtherEmployeeBenefitsLineItems
Namespace Prefix: | gef_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + 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 (k)(2) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_DE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_NL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=gef_OtherInternationalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |