| Type | including |
|---|---|
| Role | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceShortdurationInsuranceContractsDiscountedLiabilitiesTable |
| Type | Element |
|---|---|
| Hypercube | us-gaap:ShortdurationInsuranceContractsDiscountedLiabilitiesTable |
| Explicit | us-gaap:IncomeStatementLocationAxis |
| Member | us-gaap:IncomeStatementLocationDomain |
| Member | us-gaap:SalesMember |
| Member | us-gaap:TradingRevenueMember |
| Member | us-gaap:CostOfSalesMember |
| Member | us-gaap:PrincipalOrProprietaryTransactionsMember |
| Member | us-gaap:AssetManagementIncomeMember |
| Member | us-gaap:OtherIncomeMember |
| Member | us-gaap:InterestIncomeMember |
| Member | us-gaap:InvestmentIncomeMember |
| Member | us-gaap:OperatingIncomeLossMember |
| Member | us-gaap:OtherOperatingIncomeExpenseMember |
| Member | us-gaap:InterestExpenseMember |
| Member | us-gaap:OperatingExpenseMember |
| Member | us-gaap:OtherExpenseMember |
| Member | us-gaap:GainLossOnDerivativeInstrumentsMember |
| Member | us-gaap:GainLossOnInvestmentsMember1 |
| Member | us-gaap:InvestmentIncomeExpenseMember |
| Member | us-gaap:NonoperatingIncomeExpenseMember |
| Member | us-gaap:OtherNonoperatingIncomeExpenseMember |
| Member | us-gaap:ForeignCurrencyGainLossMember |
| Member | us-gaap:SaleOfSubsidiaryGainLossMember |
| Member | us-gaap:SellingGeneralAndAdministrativeExpensesMember |
| Member | us-gaap:SellingAndMarketingExpenseMember |
| Member | us-gaap:GeneralAndAdministrativeExpenseMember |
| Explicit | srt:RangeAxis |
| Member | srt:RangeMember |
| Member | srt:MaximumMember |
| Member | srt:MinimumMember |
| Member | srt:WeightedAverageMember |
| Member | srt:MedianMember |
| Member | srt:ArithmeticAverageMember |
| Label/QName |
|---|
us-gaap:ShortdurationInsuranceContractsDiscountedLiabilitiesLineItems |
us-gaap:ShortDurationContractsDiscountedLiabilitiesAmount |
us-gaap:ShortdurationInsuranceContractsDiscountedLiabilitiesAggregateDiscount |
us-gaap:ShortdurationInsuranceContractsDiscountedLiabilitiesInterestAccretion |
us-gaap:ShortDurationContractsDiscountedLiabilitiesDiscountRate |
us-gaap:ShortDurationContractsDiscountedLiabilitiesBasisForDiscountRate |