Investments [Abstract]

NameInvestmentsAbstract
Namespacehttp://fasb.org/us-gaap/2020-01-31
Prefixus-gaap
Data typexbrli:stringItemType
Period typeduration
Substitution Groupxbrli:item
BalanceNone
NillableTrue
AbstractTrue

Labels

TextLangRoleContainer role
Investments [Abstract]en-UShttp://www.xbrl.org/2003/role/labelhttp://www.xbrl.org/2003/role/link

Related Child Concepts

NameRelation TypeRole
us-gaap:EquitySecuritiesFvNi
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:DebtSecuritiesAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:MarketableSecurities
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNetInvestmentBasedOperationsPresentationAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:InterestsContinuedToBeHeldByTransferorFairValue
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:DerivativeAssets
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:Investments
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations
us-gaap:EquitySecuritiesFvNi
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:DebtSecuritiesAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:MarketableSecurities
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNetInvestmentBasedOperationsPresentationAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:InterestsContinuedToBeHeldByTransferorFairValue
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:DerivativeAssets
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:Investments
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable
us-gaap:EquitySecuritiesFvNi
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:DebtSecuritiesAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:MarketableSecurities
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:RealEstateInvestmentsAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNetInvestmentBasedOperationsPresentationAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:LoansInsurancePolicy
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:LoansPledgedAsCollateral
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:InterestsContinuedToBeHeldByTransferorFairValue
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:SecuritiesPurchasedUnderAgreementsToResell
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:SecuritiesBorrowed
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:CashCollateralForBorrowedSecurities
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:SecuritiesHeldAsCollateralAtFairValue
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:DerivativeAssets
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:OtherInvestmentsAndSecuritiesAtCost
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:OtherInvestmentsAbstract
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:Investments
parent-childhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperations
us-gaap:EquitySecuritiesFvNi
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:DebtSecuritiesAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:MarketableSecurities
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:RealEstateInvestmentsAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:MortgageLoansOnRealEstateCommercialAndConsumerNetInvestmentBasedOperationsPresentationAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:LoansInsurancePolicy
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:LoansPledgedAsCollateral
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:InterestsContinuedToBeHeldByTransferorFairValue
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:SecuritiesPurchasedUnderAgreementsToResell
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:SecuritiesBorrowed
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:CashCollateralForBorrowedSecurities
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:SecuritiesHeldAsCollateralAtFairValue
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:DerivativeAssets
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:OtherInvestmentsAndSecuritiesAtCost
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:OtherInvestmentsAbstract
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable
us-gaap:Investments
domain-memberhttp://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-InvestmentBasedOperationsStatementTable