Aggregate unpaid principal balance of variable interest entity loans in default.

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- Definition

Carrying amount of variable interest entity loans in default.

+ Details

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- Definition

Difference between aggregate unpaid principal balance and fair value of variable interest entity debt.

+ Details

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- Definition

Difference between aggregate unpaid principal balance and fair value of variable interest entity investments.

+ Details

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- Definition

Managed investment entities.

+ Details

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- Definition

Number of collateralized loan obligation entities.

+ Details

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- Definition

Maximum percentage of investment of most subordinate debt tranche of variable interest entity.

+ Details

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- Definition

Minimum percentage of investment of most subordinate debt tranche of variable interest entity.

+ Details

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- Definition

Purchased CLO senior debt face amount.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Purchased CLO senior debt purchase price.

+ Details

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Balance Type:	debit
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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

-URI http://asc.fasb.org/extlink&oid=6505594

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Trading Securities

-URI http://asc.fasb.org/extlink&oid=6526789

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 7

-Section 03

-Paragraph 1

-Subparagraph a, f, g

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 35

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6956420&loc=d3e24584-111560

+ Details

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- Definition

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (bb)

-URI http://asc.fasb.org/extlink&oid=6970148&loc=d3e5710-111685

+ Details

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- Definition

The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

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Managed Investment Entities (Details Textuals) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2011 Securities CollateralizedLoanObligations Year	Dec. 31, 2010	Sep. 30, 2011 Variable Interest Entity, Primary Beneficiary [Member]	Oct. 31, 2011 CLO Currently Being Marketed [Member]	Sep. 30, 2011 Senior Debt of Collateralized Loan Obligations [Member]
Variable Interest Entity [Line Items]
Aggregate fair value of investment in collateralized loan obligations			$ 60
Purchased senior debt, face amount					49
Purchased CLO senior debt purchase price					46
Assets of managed investment entities	2,439	2,537		400
Liabilities of managed investment entities	2,229	2,323		400
Managed Investment Entities (Textuals) [Abstract]
Percentage of investment of most subordinate debt tranche, Minimum	7.50%
Percentage of investment of most subordinate debt tranche, Maximum	24.40%
Number of collateralized loan obligation entities	6
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments	143	69
Difference between aggregate unpaid principal balance and fair value of CLOs' debt	316	301
Aggregate unpaid principal balance of CLO loans in default	7	12
Carrying amount of CLO loans in default	$ 2	$ 6