XML 117 R88.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Retirement Plans - Schedule of Weighted Average Actuarial Assumptions Used to Determine the Benefit Obligations and Net Periodic Benefit Cost of our Plans (Details) | 12 Months Ended
--- | ---
May 31, 2018 | May 31, 2017 | May 31, 2016
Pension Plans [Member] |  |  |
Defined Benefit Plan Assumptions Used In Calculations [Abstract] |  |  |
Expected long-term rate of return on assets | 6.50% | 6.50% | 6.50%
Pension Plans [Member] | U.S. Plans [Member] |  |  |
Defined Benefit Plan Assumptions Used In Calculations [Abstract] |  |  |
Discount rate used to determine benefit obligation | 4.27% | 4.08% | 4.13%
Discount rate used to determine net periodic benefit cost | 4.08% | 4.13% | 4.42%
Rate of increase in future compensation levels used to determine benefit obligation | 4.43% | 4.47% | 4.46%
Rate of increase in future compensation levels used to determine net periodic benefit cost | 4.47% | 4.46% | 4.62%
Expected long-term rate of return on assets | 6.50% | 6.50% | 6.50%
Pension Plans [Member] | International Plans [Member] |  |  |
Defined Benefit Plan Assumptions Used In Calculations [Abstract] |  |  |
Discount rate used to determine benefit obligation | 2.37% | 2.43% | 2.46%
Discount rate used to determine net periodic benefit cost | 2.43% | 2.46% | 2.95%
Rate of increase in future compensation levels used to determine benefit obligation | 2.26% | 2.42% | 2.82%
Rate of increase in future compensation levels used to determine net periodic benefit cost | 2.42% | 2.82% | 3.19%
Expected long-term rate of return on assets | 3.09% | 3.18% | 3.68%
Postretirement Healthcare Plans [Member] |  |  |
Defined Benefit Plan Assumptions Used In Calculations [Abstract] |  |  |
Discount rate used to determine benefit obligation | 4.33% | 4.32% | 4.43%
Discount rate used to determine net periodic benefit cost | 4.32% | 4.43% | 4.62%

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
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost 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_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost 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_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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_RetirementPlanTypeAxis=us-gaap_DefinedBenefitPostretirementHealthCoverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |