XML 44 R26.htm IDEA: XBRL DOCUMENT
v3.21.1

POST RETIREMENT BENEFIT PLANS (Tables) | 6 Months Ended
--- | ---
Apr. 30, 2021
Postemployment Benefits [Abstract] |
Components of Net Periodic Pension Cost | The components of net periodic pension cost include the following:
| Three Months Ended April 30, |  | Six Months Ended April 30,
(in millions) | 2021 |  | 2020 |  | 2021 |  | 2020
Service cost | $ | 3.1 |  |  | $ | 2.8 |  |  | $ | 6.2 |  |  | $ | 6.0 |
Interest cost | 4.6 |  |  | 5.6 |  |  | 9.1 |  |  | 12.2 |
Expected return on plan assets | (8.1) |  |  | (7.9) |  |  | (16.0) |  |  | (18.2) |
Amortization of prior service cost | (0.1) |  |  | 2.9 |  |  | (0.1) |  |  | 6.4 |
Recognized net actuarial loss | 3.7 |  |  | — |  |  | 7.5 |  |  | — |
Net periodic pension cost | $ | 3.2 |  |  | $ | 3.4 |  |  | $ | 6.7 |  |  | $ | 6.4 |

X
- Definition Components of net periodic pension. + References No definition available. + Details
Name: | gef_ComponentsOfNetPeriodicPensionCostTableTextBlock
Namespace Prefix: | gef_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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