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Managed Investment Entities (Details Textual) (USD $) In Millions, unless otherwise specified | 9 Months Ended |  |  |  | 1 Months Ended |  | 9 Months Ended
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Sep. 30, 2014 collateralizedloanobligation | Dec. 31, 2013 | Sep. 30, 2014 Variable interest entity, primary beneficiary [Member] | Dec. 31, 2013 Variable interest entity, primary beneficiary [Member] | Jul. 31, 2014 New collateralized loan obligation entities [Member] | Sep. 30, 2014 Subordinated debt obligations [Member] Variable interest entity, primary beneficiary [Member] | Sep. 30, 2014 Senior debt obligations [Member]
Variable Interest Entity [Line Items] |  |  |  |  |  |  |
Percentage of investment of most subordinate debt tranche, Minimum | 7.50% |  |  |  |  |  |
Percentage of investment of most subordinate debt tranche, Maximum | 51.20% |  |  |  |  |  |
Number of collateralized loan obligation entities | 12 |  |  |  |  |  |
Aggregate fair value of investment in collateralized loan obligations |  |  | $ 318 | $ 271 |  | $ 120 |
Face value of liabilities issued by managed investment entities on issuance date |  |  |  |  | 410 |  |
Face amount of managed investment entities liabilities purchased by subsidiaries at issuance date |  |  |  |  | 68 |  |
Face amount of managed investment entities liabilities purchased by subsidiaries after issuance date |  |  |  |  |  |  | 8
Amount paid by subsidiaries to purchase managed investment entities liabilities after issuance date |  |  |  |  |  |  | 8
Proceeds received by subsidiaries related to redemptions of managed investment entities liabilities | 57 |  |  |  |  |  |
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments | 42 | 15 |  |  |  |  |
Difference between aggregate unpaid principal balance and fair value of CLOs' debt | 112 | 109 |  |  |  |  |
Carrying amount of CLO loans in default | 2 | 1 |  |  |  |  |
Aggregate unpaid principal balance of CLO loans in default | $ 6 | $ 6 |  |  |  |  |

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Balance Type: | debit
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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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- Definition Carrying amount of variable interest entity loans in default. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Difference between aggregate unpaid principal balance and fair value of variable interest entity debt. + References No definition available. + Details
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- Definition Difference between aggregate unpaid principal balance and fair value of variable interest entity investments. + References No definition available. + Details
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- Definition Face amount of managed investment entities liabilities purchased by subsidiaries after issuance date. + References No definition available. + Details
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- Definition Face amount of managed investment entities liabilities purchased by subsidiaries at issuance date. + References No definition available. + Details
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- Definition Face value of liabilities issued by managed investment entities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Number of collateralized loan obligation entities. + References No definition available. + Details
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- Definition Maximum percentage of investment of most subordinate debt tranche of variable interest entity. + References No definition available. + Details
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- Definition Minimum percentage of investment of most subordinate debt tranche of variable interest entity. + References No definition available. + Details
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- Definition Proceeds received by subsidiaries related to redemptions of managed investment entities liabilities. + References No definition available. + Details
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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5728-111685 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28200181&loc=d3e5747-111685 + Details
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- Details
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