| Line | Label | Object Class (Data type) | Period Type | Balance | Report Element Name | 
        
           | 1 | Trading Securities and Other Trading Assets, by Type of Security or Asset [Table] | Table |  |  | us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable | 
        
           | 2 | Legal Entity [Axis] | Axis |  |  | dei:LegalEntityAxis | 
        
           | 3 | Consolidated Entity [Domain] | Member |  |  | dei:EntityDomain | 
        
           | 4 | Major Types of Trading Securities and Assets [Axis] | Axis |  |  | us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis | 
        
           | 5 | Major Types of Trading Securities and Assets, All Types [Domain] | Member |  |  | us-gaap:MajorTypesOfTradingSecuritiesAndAssetsDomain | 
        
           | 6 | Securities (Assets) [Member] | Member |  |  | us-gaap:SecuritiesAssetsMember | 
        
           | 7 | Equity Securities [Member] | Member |  |  | us-gaap:EquitySecuritiesMember | 
        
           | 8 | Common Stock [Member] | Member |  |  | us-gaap:CommonStockMember | 
        
           | 9 | Preferred Stock [Member] | Member |  |  | us-gaap:PreferredStockMember | 
        
           | 10 | Nonredeemable Preferred Stock [Member] | Member |  |  | us-gaap:NonredeemablePreferredStockMember | 
        
           | 11 | Redeemable Preferred Stock [Member] | Member |  |  | us-gaap:RedeemablePreferredStockMember | 
        
           | 12 | Convertible Preferred Stock [Member] | Member |  |  | us-gaap:ConvertiblePreferredStockMember | 
        
           | 13 | Debt Securities [Member] | Member |  |  | us-gaap:DebtSecuritiesMember | 
        
           | 14 | US Treasury and Government [Member] | Member |  |  | us-gaap:USTreasuryAndGovernmentMember | 
        
           | 15 | US Treasury Securities [Member] | Member |  |  | us-gaap:USTreasurySecuritiesMember | 
        
           | 16 | US Government Agencies Debt Securities [Member] | Member |  |  | us-gaap:USGovernmentAgenciesDebtSecuritiesMember | 
        
           | 17 | US Government-sponsored Enterprises Debt Securities [Member] | Member |  |  | us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember | 
        
           | 18 | US States and Political Subdivisions Debt Securities [Member] | Member |  |  | us-gaap:USStatesAndPoliticalSubdivisionsMember | 
        
           | 19 | Foreign Government Debt Securities [Member] | Member |  |  | us-gaap:ForeignGovernmentDebtSecuritiesMember | 
        
           | 20 | Corporate Debt Securities [Member] | Member |  |  | us-gaap:CorporateDebtSecuritiesMember | 
        
           | 21 | Domestic Corporate Debt Securities [Member] | Member |  |  | us-gaap:DomesticCorporateDebtSecuritiesMember | 
        
           | 22 | Foreign Corporate Debt Securities [Member] | Member |  |  | us-gaap:ForeignCorporateDebtSecuritiesMember | 
        
           | 23 | Commercial Paper, Not Included with Cash and Cash Equivalents [Member] | Member |  |  | us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember | 
        
           | 24 | Convertible Debt Securities [Member] | Member |  |  | us-gaap:ConvertibleDebtSecuritiesMember | 
        
           | 25 | Asset-backed Securities [Member] | Member |  |  | us-gaap:AssetBackedSecuritiesMember | 
        
           | 26 | Collateralized Mortgage Backed Securities [Member] | Member |  |  | us-gaap:MortgageBackedSecuritiesMember | 
        
           | 27 | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Member |  |  | us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember | 
        
           | 28 | Mortgage-backed Securities, Issued by Private Enterprises [Member] | Member |  |  | us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember | 
        
           | 29 | Residential Mortgage Backed Securities [Member] | Member |  |  | us-gaap:ResidentialMortgageBackedSecuritiesMember | 
        
           | 30 | Commercial Mortgage Backed Securities [Member] | Member |  |  | us-gaap:CommercialMortgageBackedSecuritiesMember | 
        
           | 31 | Collateralized Debt Obligations [Member] | Member |  |  | us-gaap:CollateralizedDebtObligationsMember | 
        
           | 32 | Asset-backed Securities, Securitized Loans and Receivables [Member] | Member |  |  | us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember | 
        
           | 33 | Interest-Only-Strip [Member] | Member |  |  | us-gaap:InterestOnlyStripMember | 
        
           | 34 | Principal-Only-Strip [Member] | Member |  |  | us-gaap:PrincipalOnlyStripMember | 
        
           | 35 | Fixed Income Securities [Member] | Member |  |  | us-gaap:FixedIncomeSecuritiesMember | 
        
           | 36 | Auction Rate Securities [Member] | Member |  |  | us-gaap:AuctionRateSecuritiesMember | 
        
           | 37 | Variable Rate Demand Obligation [Member] | Member |  |  | us-gaap:VariableRateDemandObligationMember | 
        
           | 38 | Other Debt Obligations [Member] | Member |  |  | us-gaap:OtherDebtSecuritiesMember | 
        
           | 39 | Trading Assets, Excluding Debt and Equity Securities [Member] | Member |  |  | us-gaap:TradingAssetsExcludingDebtAndEquitySecuritiesMember | 
        
           | 40 | Commodities Investment [Member] | Member |  |  | us-gaap:CommoditiesInvestmentMember | 
        
           | 41 | Derivative [Member] | Member |  |  | us-gaap:DerivativeMember | 
        
           | 42 | Swap [Member] | Member |  |  | us-gaap:SwapMember | 
        
           | 43 | Equity Swap [Member] | Member |  |  | us-gaap:EquitySwapMember | 
        
           | 44 | Currency Swap [Member] | Member |  |  | us-gaap:CurrencySwapMember | 
        
           | 45 | Interest Rate Swap [Member] | Member |  |  | us-gaap:InterestRateSwapMember | 
        
           | 46 | Basis Swap [Member] | Member |  |  | us-gaap:BasisSwapMember | 
        
           | 47 | Credit Default Swap [Member] | Member |  |  | us-gaap:CreditDefaultSwapMember | 
        
           | 48 | Warrant [Member] | Member |  |  | us-gaap:WarrantMember | 
        
           | 49 | Options Held [Member] | Member |  |  | us-gaap:OptionMember | 
        
           | 50 | Bond Option [Member] | Member |  |  | us-gaap:BondOptionMember | 
        
           | 51 | Stock Option [Member] | Member |  |  | us-gaap:StockOptionMember | 
        
           | 52 | Commodity Option [Member] | Member |  |  | us-gaap:CommodityOptionMember | 
        
           | 53 | Credit Default Option [Member] | Member |  |  | us-gaap:CreditDefaultOptionMember | 
        
           | 54 | Interest Rate Cap [Member] | Member |  |  | us-gaap:InterestRateCapMember | 
        
           | 55 | Interest Rate Floor [Member] | Member |  |  | us-gaap:InterestRateFloorMember | 
        
           | 56 | Swaption [Member] | Member |  |  | us-gaap:SwaptionMember | 
        
           | 57 | Foreign Exchange Option [Member] | Member |  |  | us-gaap:ForeignExchangeOptionMember | 
        
           | 58 | Credit Spread Option [Member] | Member |  |  | us-gaap:CreditSpreadOptionMember | 
        
           | 59 | Future [Member] | Member |  |  | us-gaap:FutureMember | 
        
           | 60 | DJIA Index Future [Member] | Member |  |  | us-gaap:DJIAIndexFutureMember | 
        
           | 61 | NASDAQ Index Future [Member] | Member |  |  | us-gaap:NASDAQIndexFutureMember | 
        
           | 62 | Euribor Future [Member] | Member |  |  | us-gaap:EuriborFutureMember | 
        
           | 63 | Bond Future [Member] | Member |  |  | us-gaap:BondFutureMember | 
        
           | 64 | Single-Stock Future [Member] | Member |  |  | us-gaap:SingleStockFutureMember | 
        
           | 65 | Foreign Exchange Future [Member] | Member |  |  | us-gaap:ForeignExchangeFutureMember | 
        
           | 66 | Eurodollar Future [Member] | Member |  |  | us-gaap:EurodollarFutureMember | 
        
           | 67 | Forward Contracts [Member] | Member |  |  | us-gaap:ForwardContractsMember | 
        
           | 68 | Loans and Finance Receivables [Member] | Member |  |  | us-gaap:LoansAndFinanceReceivablesMember | 
        
           | 69 | Schedule of Trading Securities and Other Trading Assets [Line Items] | LineItems |  |  | us-gaap:ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems | 
        
           | 70 | Schedule of Trading Securities and Other Trading Assets [Hierarchy] | Abstract |  |  | added:ScheduleTradingSecuritiesOtherTradingAssetsHierarchy | 
        
           | 71 | Trading Securities, Description | Concept  (Text/String) | For Period |  | us-gaap:TradingSecuritiesDescription | 
        
           | 72 | Trading Securities, Basis for Valuation, Other than Equity Securities | Concept  (Text/String) | For Period |  | us-gaap:TradingSecuritiesBasisForValuationOtherThanEquitySecurities | 
        
           | 73 | Trading Securities, Current [Roll Up] | Abstract |  |  | us-gaap:TradingSecuritiesCurrentAbstract | 
        
           | 74 | Trading Securities, Debt, Current | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesDebtCurrent | 
        
           | 75 | Trading Securities, Equity, Current | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesEquityCurrent | 
        
           | 76 | Trading Securities, Current, Total | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesCurrent | 
        
           | 77 | Trading Securities [Roll Up] | Abstract |  |  | us-gaap:TradingSecuritiesAbstract | 
        
           | 78 | Trading Securities, Debt | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesDebt | 
        
           | 79 | Trading Securities, Equity | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesEquity | 
        
           | 80 | Trading Securities, Other | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesOther | 
        
           | 81 | Trading Securities, Total | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecurities | 
        
           | 82 | Trading Securities, Change in Unrealized Holding Gain (Loss) [Roll Up] | Abstract |  |  | us-gaap:TradingSecuritiesUnrealizedHoldingGainLossAbstract | 
        
           | 83 | Trading Securities, Unrealized Holding Gain | Concept  (Monetary) | For Period | Credit | us-gaap:TradingSecuritiesUnrealizedHoldingGain | 
        
           | 84 | Trading Securities, Unrealized Holding Loss | Concept  (Monetary) | For Period | Debit | us-gaap:TradingSecuritiesUnrealizedHoldingLoss | 
        
           | 85 | Trading Securities, Change in Unrealized Holding Gain (Loss), Total | Concept  (Monetary) | For Period | Credit | us-gaap:TradingSecuritiesUnrealizedHoldingGainLoss | 
        
           | 86 | Trading Securities, Realized Gain (Loss) [Roll Up] | Abstract |  |  | us-gaap:TradingSecuritiesRealizedGainLossAbstract | 
        
           | 87 | Trading Securities, Realized Gain | Concept  (Monetary) | For Period | Credit | us-gaap:TradingSecuritiesRealizedGain | 
        
           | 88 | Trading Securities, Realized Loss | Concept  (Monetary) | For Period | Debit | us-gaap:TradingSecuritiesRealizedLoss | 
        
           | 89 | Trading Securities, Realized Gain (Loss), Total | Concept  (Monetary) | For Period | Credit | us-gaap:TradingSecuritiesRealizedGainLoss | 
        
           | 90 | Trading Securities, Restricted [Hierarchy] | Abstract |  |  | us-gaap:TradingSecuritiesRestrictedAbstract | 
        
           | 91 | Trading Securities, Restricted, Current | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesRestrictedCurrent | 
        
           | 92 | Trading Securities, Restricted | Concept  (Monetary) | As Of | Debit | us-gaap:TradingSecuritiesRestricted | 
        
           | 93 | Trading Securities, Restrictions, Additional Information | Concept  (Text/String) | For Period |  | us-gaap:TradingSecuritiesRestrictionsAdditionalInformation |