Mutual Fund [Member]

NameMutualFundMember
Namespacehttp://fasb.org/us-gaap/2020-01-31
Prefixus-gaap
Data typenonnum:domainItemType
Period typeduration
Substitution Groupxbrli:item
BalanceNone
NillableTrue
AbstractTrue

Labels

TextLangRoleContainer role
Mutual Fund [Member]en-UShttp://www.xbrl.org/2003/role/labelhttp://www.xbrl.org/2003/role/link

Related Child Concepts

NameRelation TypeRole
us-gaap:MoneyMarketFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:EquityFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:FixedIncomeFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:BalancedFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:MoneyMarketFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:EquityFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:FixedIncomeFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:BalancedFundsMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:MoneyMarketFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable
us-gaap:EquityFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable
us-gaap:FixedIncomeFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable
us-gaap:BalancedFundsMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable

Related Parent Concepts

NameRelation TypeRole
us-gaap:PlanAssetCategoriesDomain
parent-childhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsAllocationTable
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsCategoryTable
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlanPlanAssetsLevel3ReconciliationTable
us-gaap:PlanAssetCategoriesDomain
domain-memberhttp://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsScheduleOfDefinedBenefitPlansDisclosuresTable
us-gaap:InvestmentTypeCategorizationMember
parent-childhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsurance
us-gaap:InvestmentTypeCategorizationMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfFairValueOfSeparateAccountsByMajorCategoryOfInvestmentTable
us-gaap:InvestmentTypeCategorizationMember
domain-memberhttp://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceScheduleOfInvestmentIncomeReportedAmountsByCategoryTable