Table: Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]

Line Label Object Class Period Type Balance Name
1 Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table] [Table]

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 us-gaap:ScheduleOfOtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsTable
2 Legal Entity [Axis] [Axis]

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 dei:LegalEntityAxis
3 Consolidated Entity [Domain] [Domain]

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 dei:EntityDomain
4 Category of Debt Security [Axis] [Axis]

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 us-gaap:InformationByCategoryOfDebtSecurityAxis
5 Other than Temporary Impairment, Credit Losses Recognized in Earnings, All Categories of Investments [Domain] [Domain]

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 us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain
6 Available-for-sale Securities [Member] [Member]

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 us-gaap:AvailableforsaleSecuritiesMember
7 Held-to-maturity Securities [Member] [Member]

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 us-gaap:HeldtomaturitySecuritiesMember
8 Debt Security [Axis] [Axis]

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 us-gaap:DebtSecurityAxis
9 Major Types of Debt Securities [Domain] [Domain]

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 us-gaap:MajorTypesOfDebtSecuritiesDomain
10 Debt Securities [Member] [Member]

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 us-gaap:DebtSecuritiesMember
11 US Treasury and Government [Member] [Member]

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 us-gaap:USTreasuryAndGovernmentMember
12 US Treasury Securities [Member] [Member]

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 us-gaap:USTreasurySecuritiesMember
13 US Government Agencies Debt Securities [Member] [Member]

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 us-gaap:USGovernmentAgenciesDebtSecuritiesMember
14 US Government-sponsored Enterprises Debt Securities [Member] [Member]

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 us-gaap:USGovernmentSponsoredEnterprisesDebtSecuritiesMember
15 US States and Political Subdivisions Debt Securities [Member] [Member]

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 us-gaap:USStatesAndPoliticalSubdivisionsMember
16 Foreign Government Debt Securities [Member] [Member]

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 us-gaap:ForeignGovernmentDebtSecuritiesMember
17 Corporate Debt Securities [Member] [Member]

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 us-gaap:CorporateDebtSecuritiesMember
18 Domestic Corporate Debt Securities [Member] [Member]

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 us-gaap:DomesticCorporateDebtSecuritiesMember
19 Foreign Corporate Debt Securities [Member] [Member]

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 us-gaap:ForeignCorporateDebtSecuritiesMember
20 Commercial Paper, Not Included with Cash and Cash Equivalents [Member] [Member]

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 us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
21 Convertible Debt Securities [Member] [Member]

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 us-gaap:ConvertibleDebtSecuritiesMember
22 Asset-backed Securities [Member] [Member]

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 us-gaap:AssetBackedSecuritiesMember
23 Collateralized Mortgage Backed Securities [Member] [Member]

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 us-gaap:MortgageBackedSecuritiesMember
24 Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] [Member]

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 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
25 Mortgage-backed Securities, Issued by Private Enterprises [Member] [Member]

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 us-gaap:MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
26 Residential Mortgage Backed Securities [Member] [Member]

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 us-gaap:ResidentialMortgageBackedSecuritiesMember
27 Commercial Mortgage Backed Securities [Member] [Member]

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 us-gaap:CommercialMortgageBackedSecuritiesMember
28 Collateralized Debt Obligations [Member] [Member]

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 us-gaap:CollateralizedDebtObligationsMember
29 Asset-backed Securities, Securitized Loans and Receivables [Member] [Member]

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 us-gaap:AssetBackedSecuritiesSecuritizedLoansAndReceivablesMember
30 Interest-Only-Strip [Member] [Member]

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 us-gaap:InterestOnlyStripMember
31 Principal-Only-Strip [Member] [Member]

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 us-gaap:PrincipalOnlyStripMember
32 Fixed Income Securities [Member] [Member]

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 us-gaap:FixedIncomeSecuritiesMember
33 Auction Rate Securities [Member] [Member]

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 us-gaap:AuctionRateSecuritiesMember
34 Variable Rate Demand Obligation [Member] [Member]

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 us-gaap:VariableRateDemandObligationMember
35 Other Debt Obligations [Member] [Member]

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 us-gaap:OtherDebtSecuritiesMember
36 Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] [Line Items]

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 us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsLineItems
37 Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] [Concept] Text Block (HTML) For Period

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 us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsTableTextBlock
38 Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] [Abstract]

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 us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsRollForward
39 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance [Concept] Monetary As Of Debit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld
40 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease) [Roll Up] [Abstract]

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 added:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsPeriodIncreaseDecreaseRollUp
41 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment [Concept] Monetary For Period Debit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment
42 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold [Concept] Monetary For Period Credit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold
43 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Change in Status [Concept] Monetary For Period Credit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsChangeInStatus
44 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses [Concept] Monetary For Period Debit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses
45 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Cash Flows [Concept] Monetary For Period Credit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows
46 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease), Total [Concept] Monetary For Period

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 us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsPeriodIncreaseDecrease
47 Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance [Concept] Monetary As Of Debit us-gaap:OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld