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Pension Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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May 31, 2014
Pension Benefits, U.S. Plans |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Contribution to retirement plans in current fiscal year | $ 53.1 us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Pension Benefits, Non-U.S. Plans |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Contribution to retirement plans in current fiscal year | $ 6.3 us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_ForeignPensionPlansDefinedBenefitMember

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Period Type: | duration

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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. + References No definition available. + Details
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