Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Consolidate Managed Investment Entities.

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Fair value measurement with unobservable inputs reconciliation recurring basis liability consolidate managed investment entities.

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- 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.

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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.

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity).

+ References

+ Details

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- Definition

Purchases that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to assets measured at fair value on a recurring basis using unobservable inputs (Level 3).

+ References

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Sales that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

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- Definition

Transfers into assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

Transfers out of assets measured at fair value and categorized within Level 3 of the fair value hierarchy that have taken place during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

This element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c
-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 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

+ Details

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- Definition

Purchases that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

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- Definition

This element represents purchases, sales, issuances, and settlements (net) which have taken place during the period in relation to liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3).

+ References

+ Details

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Sales that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy.

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Settlements that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy.

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- Definition

This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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Fair Value Measurements (Details 1) (USD $) In Millions	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended			3 Months Ended	6 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
Fair Value Measurements (Details 1) (USD $) In Millions	Jun. 30, 2011 States, municipalities and political subdivisions [Member]	Jun. 30, 2010 States, municipalities and political subdivisions [Member]	Jun. 30, 2011 States, municipalities and political subdivisions [Member]	Jun. 30, 2010 States, municipalities and political subdivisions [Member]	Jun. 30, 2011 Residential Mortgage Backed Securities [Member]	Jun. 30, 2010 Residential Mortgage Backed Securities [Member]	Jun. 30, 2011 Residential Mortgage Backed Securities [Member]	Jun. 30, 2010 Residential Mortgage Backed Securities [Member]	Jun. 30, 2011 Commercial Mortgage Backed Securities [Member]	Jun. 30, 2010 Commercial Mortgage Backed Securities [Member]	Jun. 30, 2011 Commercial Mortgage Backed Securities [Member]	Jun. 30, 2010 Commercial Mortgage Backed Securities [Member]	Jun. 30, 2011 Assets of Managed Investment Entities [Member]	Jun. 30, 2010 Assets of Managed Investment Entities [Member]	Jun. 30, 2011 Assets of Managed Investment Entities [Member]	Jun. 30, 2010 Assets of Managed Investment Entities [Member]	Jun. 30, 2011 All other corporate [Member]	Jun. 30, 2010 All other corporate [Member]	Jun. 30, 2011 All other corporate [Member]	Jun. 30, 2010 All other corporate [Member]	Jun. 30, 2010 Equity Securities [Member]	Jun. 30, 2011 Equity Securities [Member]	Jun. 30, 2010 Equity Securities [Member]	Mar. 31, 2011 Equity Securities [Member]	Jun. 30, 2010 Trading fixed maturities [Member]	Jun. 30, 2011 Trading fixed maturities [Member]	Jun. 30, 2010 Trading fixed maturities [Member]	Mar. 31, 2011 Trading fixed maturities [Member]	Jun. 30, 2011 Liabilities of Managed Investment Entities [Member]	Jun. 30, 2010 Liabilities of Managed Investment Entities [Member]	Jun. 30, 2011 Liabilities of Managed Investment Entities [Member]	Jun. 30, 2010 Liabilities of Managed Investment Entities [Member]	Jun. 30, 2011 Embedded derivatives [Member]	Jun. 30, 2010 Embedded derivatives [Member]	Jun. 30, 2011 Embedded derivatives [Member]	Jun. 30, 2010 Embedded derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Financial assets, Beginning Balance	$ 21	$ 6	$ 20	$ 23	$ 271	$ 372	$ 312	$ 435	$ 9	$ 6	$ 6		$ 54	$ 100	$ 48		$ 424	$ 356	$ 436	$ 311	$ 24	$ 21	$ 25	$ 21	$ 4	$ 3	$ 1	$ 1
Consolidate Managed Investment Entities																90				(6)
Total realized/unrealized gains (losses) included in Net income						1	1	2						1	(1)	5	1	(11)	(1)	(12)
Total realized/unrealized gains (losses) included in Other comprehensive income loss		1	1	1	(2)	10	(2)	11									6	9	6	8	0	2	(1)
Purchases, sales, issuances and settlements		(3)		(3)		(12)		6		0		6		(10)		(4)		42		87							4
Purchases and issuances	53		53		17		17						9		16		46		91
Sales and settlements					(7)		(20)						(2)		(6)		(26)		(37)			(2)
Transfer into Level 3	10	17	10	17		2	7	2	1		4		2	7	8	7	2	46	24	69
Transfer out of Level 3				(17)	(24)	(47)	(60)	(130)					(10)	(52)	(12)	(52)	(71)	(16)	(137)	(31)					(3)	(2)	(4)
Financial assets, Ending Balance	84	21	84	21	255	326	255	326	10	6	10	6	53	46	53	46	382	426	382	426	24	21	24	21	1	1	1	1
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Financial liabilities, Beginning Balance																													(2,316)	(2,178)	(2,258)		(234)	(131)	(190)	(113)
Consolidate Managed Investment Entities																																(2,100)
Total realized/unrealized Gains (losses) included in Net income																													(10)	16	(72)	(90)	(10)	13	(29)	1
Purchases, sales, issuances and settlements																														10		38		(10)		(16)
Purchases and issuances																																	(60)		(90)
Sales and settlements																																	5		10
Sales and settlements																													4		8
Financial liabilities, Ending Balance																													$ (2,322)	$ (2,152)	$ (2,322)	$ (2,152)	$ (299)	$ (128)	$ (299)	$ (128)