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Fair Value Of Financial Instruments (Company's Assets And Liabilities Measured At Fair Value On Recurring Basis) (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | $ 10,786 | $ 12,174
Fair value financial liabilities measured on recurring basis | 3,781 | 6,926
Variable Interest Entity Primary Beneficiary [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,612 | 1,881
Variable Interest Entity Primary Beneficiary [Member] | Loan Repurchase Commitments [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 359 | 1,086
State and municipal bonds [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 41
Corporate Obligations [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 89 | 293
Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 259 | 875
Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 105 | 417
Collateralized Debt Obligations [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 36 | 340
Other Asset Backed [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 98 | 184
Money Market Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 783 | 593
Money Market Securities [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 136 | 210
Medium Term Notes [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 203 | 165
Perpetual Debt And Equity Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 51 | 57
Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,161 | 814
Fixed Maturities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 5,996 | 5,203
Fixed Maturities [Member] | U S Treasury And Government [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 553 | 884
Fixed Maturities [Member] | State and municipal bonds [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,784 | 1,532
Fixed Maturities [Member] | Foreign Government Debt [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 189 | 196
Fixed Maturities [Member] | Corporate Obligations [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,824 | 1,216
Fixed Maturities [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,173 | 988
Fixed Maturities [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 92 | 98
Fixed Maturities [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 39 | 48
Fixed Maturities [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 154 | 96
Fixed Maturities [Member] | Other Asset Backed [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 188 | 145
Derivative Assets [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 4 | 4
Derivative Assets [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Derivative Assets [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Derivative Assets [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 4 | 4
Derivative Assets [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Derivative Assets [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Assets Of Consolidated V I Es [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 97 | 176
Derivative Liabilities [Member] | Credit Derivatives [Member] | Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 1,152 | 2,934
Derivative Liabilities [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 |
Derivative Liabilities [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | (2)
Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 141
Derivative Liabilities [Member] | Currency Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 2
Derivative Liabilities [Member] | Currency Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 11 | 21
Derivative Liabilities [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Other Liabilities [Member] | Warrant [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 59 | 6
Variable Interest Entity Notes [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 2,356 | 3,659
Fair Value Inputs Level 1 [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 2,713 | 2,678
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loan Repurchase Commitments [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | State and municipal bonds [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Corporate Obligations [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Other Asset Backed [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Money Market Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 783 | 585
Fair Value Inputs Level 1 [Member] | Money Market Securities [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 136 | 210
Fair Value Inputs Level 1 [Member] | Medium Term Notes [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Perpetual Debt And Equity Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 27 | 23
Fair Value Inputs Level 1 [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,161 | 814
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 509 | 870
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | U S Treasury And Government [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 397 | 784
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | State and municipal bonds [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Foreign Government Debt [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 112 | 86
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Corporate Obligations [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Fixed Maturities [Member] | Other Asset Backed [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Assets [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Assets [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Assets Of Consolidated V I Es [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 97 | 176
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 |
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Derivative Liabilities [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Other Liabilities [Member] | Warrant [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 1 [Member] | Variable Interest Entity Notes [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 5,763 | 6,049
Fair value financial liabilities measured on recurring basis | 1,645 | 2,175
Fair Value Inputs Level 2 [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loan Repurchase Commitments [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | State and municipal bonds [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 41
Fair Value Inputs Level 2 [Member] | Corporate Obligations [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 41 | 215
Fair Value Inputs Level 2 [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 255 | 869
Fair Value Inputs Level 2 [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 102 | 410
Fair Value Inputs Level 2 [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 14 | 215
Fair Value Inputs Level 2 [Member] | Other Asset Backed [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 44 | 120
Fair Value Inputs Level 2 [Member] | Money Market Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 8
Fair Value Inputs Level 2 [Member] | Money Market Securities [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Medium Term Notes [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Perpetual Debt And Equity Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 13 | 20
Fair Value Inputs Level 2 [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 5,248 | 4,062
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | U S Treasury And Government [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 156 | 100
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | State and municipal bonds [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,765 | 1,429
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Foreign Government Debt [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 65 | 107
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Corporate Obligations [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,776 | 1,140
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,173 | 988
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 86 | 94
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 25 | 20
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 72 | 65
Fair Value Inputs Level 2 [Member] | Fixed Maturities [Member] | Other Asset Backed [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 130 | 119
Fair Value Inputs Level 2 [Member] | Derivative Assets [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 46 | 89
Fair Value Inputs Level 2 [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 46 | 89
Fair Value Inputs Level 2 [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Derivative Assets [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Assets Of Consolidated V I Es [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 5 | 13
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 |
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 165 | 287
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 141
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 1
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Derivative Liabilities [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 2 [Member] | Other Liabilities [Member] | Warrant [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 59 | 6
Fair Value Inputs Level 2 [Member] | Variable Interest Entity Notes [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 1,416 | 1,727
Fair Value Inputs Level 3 [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 2,352 | 3,537
Fair value financial liabilities measured on recurring basis | 2,301 | 5,044
Fair Value Inputs Level 3 [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 1,612 | 1,881
Fair Value Inputs Level 3 [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loan Repurchase Commitments [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 359 | 1,086
Fair Value Inputs Level 3 [Member] | State and municipal bonds [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Corporate Obligations [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 48 | 78
Fair Value Inputs Level 3 [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 4 | 6
Fair Value Inputs Level 3 [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 3 | 7
Fair Value Inputs Level 3 [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 22 | 125
Fair Value Inputs Level 3 [Member] | Other Asset Backed [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 54 | 64
Fair Value Inputs Level 3 [Member] | Money Market Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Money Market Securities [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Medium Term Notes [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 203 | 165
Fair Value Inputs Level 3 [Member] | Perpetual Debt And Equity Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 11 | 14
Fair Value Inputs Level 3 [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 239 | 271
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | U S Treasury And Government [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | State and municipal bonds [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 19 | 103
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Foreign Government Debt [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 12 | 3
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Corporate Obligations [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 48 | 76
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 6 | 4
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 14 | 28
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 82 | 31
Fair Value Inputs Level 3 [Member] | Fixed Maturities [Member] | Other Asset Backed [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 58 | 26
Fair Value Inputs Level 3 [Member] | Derivative Assets [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 5
Fair Value Inputs Level 3 [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 5
Fair Value Inputs Level 3 [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Derivative Assets [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Assets Of Consolidated V I Es [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 1,147 | 2,921
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 |
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 4
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 1
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 11 | 21
Fair Value Inputs Level 3 [Member] | Derivative Liabilities [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Other Liabilities [Member] | Warrant [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Fair Value Inputs Level 3 [Member] | Variable Interest Entity Notes [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 940 | 1,932
Counterparty And Cash Collateral Netting [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | (42) | (90)
Fair value financial liabilities measured on recurring basis | (165) | (293)
Counterparty And Cash Collateral Netting [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loans Receivable [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Variable Interest Entity Primary Beneficiary [Member] | Loan Repurchase Commitments [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | State and municipal bonds [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Corporate Obligations [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Other Asset Backed [Member] | Asset-backed [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Money Market Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Money Market Securities [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Medium Term Notes [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Perpetual Debt And Equity Securities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | U S Treasury And Government [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | State and municipal bonds [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Foreign Government Debt [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Corporate Obligations [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Residential Mortgage Backed Non Agency [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Commercial Mortgage Backed Securities [Member] | Mortgage-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Collateralized Debt Obligations [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Fixed Maturities [Member] | Other Asset Backed [Member] | Asset-backed [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Assets [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | (42) | (90)
Counterparty And Cash Collateral Netting [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Assets [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | (42) | (90)
Counterparty And Cash Collateral Netting [Member] | Derivative Assets [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Assets [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Assets Of Consolidated V I Es [Member] | Cash And Cash Equivalents [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial assets measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 |
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Credit Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | (165) | (293)
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Interest Rate Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Currency Derivatives [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Derivative Liabilities [Member] | Other Derivatives [Member] | Non Insured Derivatives [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Other Liabilities [Member] | Warrant [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | 0 | 0
Counterparty And Cash Collateral Netting [Member] | Variable Interest Entity Notes [Member] | Variable Interest Entity Primary Beneficiary [Member] |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Fair value financial liabilities measured on recurring basis | $ 0 | $ 0

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