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Managed Investment Entities (Details Textual) $ in Millions | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
May. 31, 2015 USD ($) | Jun. 30, 2015 USD ($) collateralizedloanobligation | Jun. 30, 2014 USD ($) | Dec. 31, 2014 USD ($)
Variable Interest Entity [Line Items] |  |  |  |
Percentage of investment of most subordinate debt tranche, Minimum |  | 15.00% |  |
Percentage of investment of most subordinate debt tranche, Maximum |  | 51.20% |  |
Number of collateralized loan obligation entities | collateralizedloanobligation |  | 13 |  |
Proceeds received by subsidiaries related to redemptions of managed investment entities liabilities |  | $ 1 | $ 54 |
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments |  | 63 |  | $ 83
Difference between aggregate unpaid principal balance and carrying value of CLOs' debt |  | 134 |  | 131
Carrying amount of CLO loans in default |  | 2 |  | 2
Aggregate unpaid principal balance of CLO loans in default |  | 10 |  | 6
Variable interest entity, primary beneficiary [Member] |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Aggregate fair value of investment in collateralized loan obligations |  | 319 |  | $ 289
New Collateralized Loan Obligation Entities [Member] |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Face value of liabilities issued by managed investment entities on issuance date | $ 511 |  |  |
Face amount of managed investment entities liabilities purchased by subsidiaries at issuance date | $ 45 |  |  |
Subordinated debt obligations [Member] | Variable interest entity, primary beneficiary [Member] |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Aggregate fair value of investment in collateralized loan obligations |  | $ 87 |  |
Senior debt obligations [Member] |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Face amount of managed investment entities liabilities purchased by subsidiaries after issuance date |  |  | 6 |
Amount paid by subsidiaries to purchase managed investment entities liabilities after issuance date |  |  | $ 6 |

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- Definition Amount paid by subsidiaries to purchase managed investment entities liabilities after issuance date. + References No definition available. + Details
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