 | us-gaap:DefinedBenefitPlanActualReturnOnPlanAssets | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanContributionsByEmployer | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanPlanAssetsBenefitsPaid | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanPlanAssetsPrescriptionDrugSubsidyReceipt | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanDivestituresPlanAssets | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanSettlementsPlanAssets | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanAdministrationExpenses | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |
 | us-gaap:DefinedBenefitPlanAssetsTransferredToFromPlan | summation-item | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |